2024-03-19T13:54:17Z
https://tecnoscientifica.com/journal/idwm/oai
oai:oai.tecnoscientifica.com:article/36
2022-04-05T07:13:57Z
idwm:Review
Green Building Practices on Waste Minimization in China Construction Industry
Lee, Bernice Xin Yi
Ponraj, Mohanadoss
Widyasamratri, Hasti
Wang, Jie
In China, a common practice for construction waste management is to dispose of it in landfills. A 5% construction waste recycling rate and ongoing insufficient landfilling practice resulted in decreased environmental and socioeconomic well-being. Management hierarchy that starts with rethink, redesign, reduce, reuse, refurbish, recycle, incineration, and finally disposal is a probable strategy to facilitate construction waste minimization in China. The green building concept pursued by China also served as a promising tool in evaluating the performance of Chinese green buildings. Barriers include lack of standard operating procedure in waste minimization, immature recycling technology and an undeveloped recycling market, leading to poor performance in construction waste minimization. Several strategies are proposed to ameliorate the current condition in China's construction sector. Even though results reveal that China falls behind in the engagement of green building compared to developed countries, green materials are utilized in various building structures such as flooring, roofs, walls, and outdoor pavements. Lastly, the benefits and shortcomings of two green material technologies, in particular material selection and recycling, applied in China were reviewed.
Tecno Scientifica Publishing
2021-12-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/36
10.53623/idwm.v1i1.36
Industrial and Domestic Waste Management; Vol. 1 Iss. 1 (2021); 12-25
2809-4255
10.53623/idwm.v1i1
eng
https://tecnoscientifica.com/journal/idwm/article/view/36/47
Copyright (c) 2021 Bernice Lee, Mohanadoss Ponraj, Hasti Widyasamratri, Jie Wang
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/41
2022-04-05T07:13:57Z
idwm:ART
Utilization of Moringa oleifera as Natural Coagulant for Water Purification
Ng, Meng Hong
Elshikh, Mohamed Soliman
plant-based natural coagulant; Moringa oleifera seed ; turbidity removal; water purification
The plant-based natural coagulant has the potential to substitute the chemical coagulant in the water treatment process. In this work, the potential of plant-based natural coagulants in the ability of turbidity removal was identified. The Moringa oleifera seed was selected for the batch analysis test such as pH, contact time, agitation, and dosage. The high alkaline water decreases the effectiveness of plant-based natural coagulants. The agitation and contact time show the importance of the coagulation process. The optimum turbidity removal rate in pH is 4, the contact time is 60 seconds and 3000 seconds for coagulation and flocculation, respectively, the agitation is 300 RPM and 30 RPM for coagulation and flocculation, and lastly, the dosage is 10 g of Moringa oleifera seed. Finally, the plant-based natural coagulants demonstrated the ability to remove turbidity and could be used in place of chemical coagulants.
Tecno Scientifica Publishing
2021-12-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/41
10.53623/idwm.v1i1.41
Industrial and Domestic Waste Management; Vol. 1 Iss. 1 (2021); 1-11
2809-4255
10.53623/idwm.v1i1
eng
https://tecnoscientifica.com/journal/idwm/article/view/41/46
Copyright (c) 2021 Meng Hong Ng, Mohamed Soliman Elshikh
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/49
2022-04-05T07:13:57Z
idwm:Review
Sustainable Technology in Developed Countries: Waste Municipal Management
Hoareau, Carol Emilly
Ahmad, Noraziah
Nuid, Maria
Rubiyatno
Khoi, Dao Nguyen
Kristanti, Risky Ayu
As more studies were conducted and global events unfold, a greater emphasis is being placed on the importance of preserving the Earth's natural resources and cycles before we face a catastrophic climate crisis. Thus, developed countries are constantly adapting their policies and legislation to promote green development for the sake of sustainable development, which benefits both the environment and the socioeconomic segment. As populations grow and living standards improve, more waste is generated. Appropriate municipal waste management is necessary to avoid harm to the environment, wildlife, and human health. Sustainable municipal solid waste management is even included in the United Nations' (UN) Sustainable Development Goals, which aim to improve the world's environment and economy. The European Union (EU) member states' waste management systems can be considered exemplary. In some countries, landfills have been prohibited, promoting the use of more sustainable technologies such as organic waste incineration, recycling, and composting. However, a divide exists between member countries, with some lagging behind in terms of waste management strategies. Thus, this paper examined the current state of municipal waste in EU member states, followed by a review of the various disposal technologies implemented. The difficulties and environmental concerns that must be overcome are discussed, as are the recommendations and possible future directions.
Tecno Scientifica Publishing
2021-12-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/49
10.53623/idwm.v1i1.49
Industrial and Domestic Waste Management; Vol. 1 Iss. 1 (2021); 48-55
2809-4255
10.53623/idwm.v1i1
eng
https://tecnoscientifica.com/journal/idwm/article/view/49/50
Copyright (c) 2021 Carol Emilly Hoareau, Noraziah Ahmad, Maria Nuid, Rubiyatno, Dao Nguyen Khoi, Risky Ayu Kristanti
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/50
2022-04-05T07:13:57Z
idwm:Review
Scenario of Municipal Waste Management in Malaysia
Liew, Zachary Raphael
Monir, Minhaj Uddin
Kristanti, Risky Ayu
Malaysia has rapidly modernized, with most of the population now residing in cities and the remainder in rural or remote areas. The amount of municipal solid waste generated has increased in tandem with the country's rapid urbanization in response to that statement. Due to a lack of connectivity in rural areas, there may be insufficient infrastructure for a proper waste management system. As a result, illegal waste dumping was common, and landfills' massive volumes of waste may contribute to greenhouse gas emissions. The Malaysian government has responded by taking the necessary steps to upgrade the country's current waste management system in order to better manage municipal solid waste disposal. This research looks at how energy recovery from accumulated waste can be used as a renewable energy source, as well as the current issues, challenges, and proposed solutions. Methane gas produced as a byproduct of waste decomposition in landfills or disposal sites was used to generate electricity more efficiently and sustainably, resulting in a positive economic and environmental outcome.
Tecno Scientifica Publishing
2021-12-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/50
10.53623/idwm.v1i1.50
Industrial and Domestic Waste Management; Vol. 1 Iss. 1 (2021); 41-47
2809-4255
10.53623/idwm.v1i1
eng
https://tecnoscientifica.com/journal/idwm/article/view/50/49
Copyright (c) 2021 Zachary Raphael Liew, Minhaj Uddin Monir, Risky Ayu Kristanti
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/51
2022-04-05T07:13:57Z
idwm:Review
Malaysia Moving Towards a Sustainability Municipal Waste Management
Tang, Yien Yu
Tang, Kuok Ho Daniel
Maharjan, Amit Kumar
Abdul Aziz, Azrina
Bunrith, Seng
The elevation of waste generation subsequent to population growth has become a severe environmental topic in Malaysia. Since most of the waste is being dumped into a landfill, the open dumpsite, or unsanitary landfills which are not constructed with proper engineering plan, severe impacts on the environment result. The energy demand in Malaysia increased with the growing population, but reliance on fossil fuels to generate electricity has created another greenhouse gas contributor. Alternatively, waste-to-energy technology solves the problem of increasing waste by converting the waste to a renewable energy source. Malaysia has moved towards landfill gas recovery system and incineration for waste energy recovery. The recovery system and refuse-derived fuel plant achieved expectation; however, the incineration plants have failed due to the opposition of the public, lack of funding and technician expertise, and other technical issues. The solid waste management practices lacking separation and recycling sources, become an obstacle for development. The government puts effort into solving the current issue by promoting recycling in the public, enforcing the legislation, and approaching new technologies for better solid waste management practice in the future. This paper aims to discuss the application of energy recovery from municipal solid waste in Malaysia.
Tecno Scientifica Publishing
2021-12-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/51
10.53623/idwm.v1i1.51
Industrial and Domestic Waste Management; Vol. 1 Iss. 1 (2021); 26-40
2809-4255
10.53623/idwm.v1i1
eng
https://tecnoscientifica.com/journal/idwm/article/view/51/48
Copyright (c) 2021 Yien Yu Tang, Kuok Ho Daniel Tang, Amit Kumar Maharjan, Azrina Abdul Aziz, Seng Bunrith
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/62
2022-05-24T04:03:02Z
idwm:ART
Tolerance of Earthworms in Soil Contaminated with Polycyclic Aromatic Hydrocarbon
Rubiyatno
Teh, Zee Chuang
Lestari, Diah Velentina
Yulisa, Arma
Musa, Muthah
Chen, Tse-Wei
Darwish, Noura M.
AlMunqedhi, Bandar M.
Hadibarata, Tony
Removal, wild earthworm, pyrene, soil.
Pyrene is a very resistant polycyclic aromatic hydrocarbon (PAH) with four benzene rings that survives in the environment. This study was aimed at investigating the tolerance of earthworms in soil contaminated with pyrene. The studies were performed by employing earthworms gathered from shady regions adjacent to sewage ponds as pyrene degraders to eradicate pyrene from the soil. Numerous factors affecting pyrene degradation efficiency were explored, including the effect of contaminant concentration, earthworm and soil ration, and soil condition. The highest pyrene removal (31.2%) was shown by earthworms in the condition of soil mixed with cow dung. Pyrene decomposition was inhibited during soil sterilization due to the absence of soil microorganisms and indigenous pyrene-degrading bacteria. Nonetheless, earthworms are suitable for use as pyrene degraders in contaminated soil.
Tecno Scientifica Publishing
2022-04-05
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/62
10.53623/idwm.v2i1.62
Industrial and Domestic Waste Management; Vol. 2 Iss. 1 (2022); 9-16
2809-4255
10.53623/idwm.v2i1
eng
https://tecnoscientifica.com/journal/idwm/article/view/62/56
Copyright (c) 2022 Rubiyatno, Zee Chuang Teh, Diah Velentina Lestari, Arma Yulisa, Muthah Musa, Tse-Wei Chen, Noura M. Darwish, Bandar M. AlMunqedhi, Tony Hadibarata
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/63
2022-05-24T04:03:02Z
idwm:ART
Removal of Cresol Red by Adsorption Using Wastepaper
Salman, Mohamad
Demir, Muslum
Tang, Kuok Ho Daniel
Cao, Linh Thi Thuy
Bunrith, Seng
Chen, Tse-Wei
Darwish, Noura M.
AlMunqedhi, Bandar M.
Hadibarata, Tony
Recycling waste papers, decolourization, weight, adsoprtion, cresol red dye
The utilization of less expensive and more effective adsorbents derived from a variety of basic materials has been investigated. The research aimed to investigate the feasibility of employing waste paper as the adsorbent to remove the cresol red (CR) dye from wastewater through adsorption mechanism. Langmuir, Jovanovic, and Freundlich model were observed for isotherms models, while pseudo-first-order and pseudo-second-order were examined for kinetic models. The results indicated that increasing the adsorbent dose and contact time gave no significant effect to adsorption capacity while adsorption capacity increased with the increasing of pH until it reached a maximum at pH 8, and raising the starting dye concentration leads in a significant increase in adsorption capacity (16.7 mg/g). When the experimental adsorption isotherms and kinetic were fitted using the Freundlich models and pseudo-second-order model, it was discovered that those models were more accurately represented by the data, as indicated by a high correlation coefficient (R2) of 0.974 and 0.963.
Tecno Scientifica Publishing
2022-04-05
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/63
10.53623/idwm.v2i1.63
Industrial and Domestic Waste Management; Vol. 2 Iss. 1 (2022); 1-8
2809-4255
10.53623/idwm.v2i1
eng
https://tecnoscientifica.com/journal/idwm/article/view/63/55
Copyright (c) 2022 Mohamad Salman, Muslum Demir, Kuok Ho Daniel Tang, Linh Thi Thuy Cao, Seng Bunrith, Tse-Wei Chen, Noura M. Darwish, Bandar M. AlMunqedhi, Tony Hadibarata
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/70
2022-05-24T04:03:02Z
idwm:ART
Study of Household Waste Management and Recycling Awareness Between Residential Areas in Kuala Nerang, Kedah, Malaysia
Abdul Halim, Husna
Mohamed Najib, Mohamed Zuhaili
Zainal Abideen, Muzaffar
Basri, Hazlami Fikri
Muda, Khalida
household waste management; segregation of solid waste; recycling awareness
This paper presents a study on household waste management and recycling awareness. Residential areas are the major sources of solid waste as that is where people live. The waste that is usually disposed of from residential areas includes food waste, plastic waste, paper, glass, tin, and others. The increasing trend in waste generated from homes has become a major concern. This study aimed to assess household waste management and recycling awareness in two residential areas located in Padang Terap District, Kuala Nerang, Kedah, Malaysia. Recently, Padang Terap district showed an increase in waste generated compared to another district, Kedah. An open-ended questionnaire was distributed to approximately 32 respondents, and an interview was conducted to study household waste management and recycling awareness in two residential areas—Taman Jati and Taman Pelangi. The research shows that household waste management to segregate the waste remains a problem, despite most respondents being aware of this issue through different media. Furthermore, the lack of household waste management and recycling programs and facilities by the local authorities caused residents to be reluctant to practice these activities.
Tecno Scientifica Publishing
2022-05-24
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/70
10.53623/idwm.v2i1.70
Industrial and Domestic Waste Management; Vol. 2 Iss. 1 (2022); 39-45
2809-4255
10.53623/idwm.v2i1
eng
https://tecnoscientifica.com/journal/idwm/article/view/70/72
Copyright (c) 2022 Husna Abdul Halim, Mohamed Zuhaili Mohamed Najib, Muzaffar Zainal Abideen, Hazlami Fikri Basri, Khalida Muda
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/80
2022-05-24T04:03:02Z
idwm:ART
Effect of Substrate-to-Inoculum Ratio and Temperatures During the Start-up of Anaerobic Digestion of Fish Waste
Yulisa, Arma
Chairattanawat, Chayanee
Park, Sang Hyeok
Jannat, Md Abu Hanifa
Hwang, Seokhwan
Anaerobic digestion
F/M ratio
Fish waste
Mono-digestion
Start-up
The high protein and lipid content of fish waste makes mono-digestion a difficult bioprocess for an anaerobic digestion (AD) system. On the other hand, the massive increase in fish and seafood consumption worldwide has led to an inevitable fish waste mono-AD. Therefore, this study was conducted to investigate the effects of food-to-microorganisms (F/M) ratios and temperatures during the start-up period of fish waste mono-digestion. F/M ratios of 0.5, 1, 2, and 3 on a g-COD/g-VSS basis were operated at 35°C and 45°C, representing mesophilic and hyper-mesophilic conditions, respectively. The increase in F/M ratio improved the maximum methane (CH4) production rate at both temperatures. However, F/M ratio of 0.5 generated the highest CH4 yield in mesophilic and hyper-mesophilic conditions (0.23±0.00 L-CH4/g-CODinput). Further increase in F/M ratio decreased CH4 yield up to 21.74% and 39.13% when the reactors were operated at 35°C and 45°C, respectively. When reactors were supplied with FM ratios of 0.5, 1, and 2, hyper-mesophilic temperature improved methanogenesis by up to 2.61% and shortened the lag phase by 22.88%. Meanwhile, F/M ratio 3 at 45°C decreased cumulative CH4 production by up to 26.57% and prolonged the lag phase by 10.19%. The result of this study is beneficial to managing the input substrate of a batch-AD system that treats fish waste as a sole substrate.
Tecno Scientifica Publishing
2022-05-08
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/80
10.53623/idwm.v2i1.80
Industrial and Domestic Waste Management; Vol. 2 Iss. 1 (2022); 17-29
2809-4255
10.53623/idwm.v2i1
eng
https://tecnoscientifica.com/journal/idwm/article/view/80/69
Copyright (c) 2022 Arma Yulisa, Chayanee Chairattanawat, Sang Hyeok Park, Md Abu Hanifa Jannat, Seokhwan Hwang
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/81
2022-05-24T04:03:02Z
idwm:ART
Adsorption of Phosphorus Using Cockle Shell Waste
Mohd Zain, Natasya Binti
Md Salleh, Nurul Jannah
Hisamuddin, Nurul Fatihah
Hashim, Shazana
Abdullah, Noorul Hudai
Cockle Shell; Phosphorus; Eutrophication; Dosage; Interval time
This study aims at isolating bacteria capable of producing lysine from decayed banana and pineapple fruits, screening the bacteria for lysine accumulation, and producing lysine in a submerged medium using active isolates. Lysine is one of the potential amino acids not synthesized biologically in the body. It is nutritionally important to man and animals and can be used to supplement food and food materials especially cereal products, to improve protein quality. The banana and pineapple fruits were purchased from 'New market' in Amorji-nike, Enugu State, a total of 10 fruits were used. Some pieces of decayed tissues from the banana and pineapple fruits were transferred by means of sterile techniques, to the nutrient agar contained in covered dishes (Petri-dishes) and incubated at room temperature. The plates were identified by biochemical tests. The bacteria isolated from the decayed banana and pineapple fruits were Pseudomonas species, Corynebacterium species, Staphylococcus aureus, Bacillus species, Escherichia coli, Acetobacter aceti, Erwinia herbicola, and Gluconobacter oxydans. Only two of these bacteria were indicated as lysine producers, and they are Bacillus spp and Acetobacter aceti.
Tecno Scientifica Publishing
2022-05-24
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/81
10.53623/idwm.v2i1.81
Industrial and Domestic Waste Management; Vol. 2 Iss. 1 (2022); 30-38
2809-4255
10.53623/idwm.v2i1
eng
https://tecnoscientifica.com/journal/idwm/article/view/81/71
Copyright (c) 2022 Natasya Binti Mohd Zain, Nurul Jannah Md Salleh, Nurul Fatihah Hisamuddin, Shazana Hashim, Noorul Hudai Abdullah
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/108
2022-12-06T02:54:59Z
idwm:ART
Biosorption of Synthetic Dye by Macrofungi
Lee, Kek Kin
Kristanti, Risky Ayu
Yulisa, Arma
Rubiyatno
Ningsih, Fitria
Syafrudin, Muhammad
Hernandes, Erika
Albescu, Mihaela
Biosorption; Remazol Brilliant Blue R; biosorbent; decolourization; Pleurotus ostreatus
This research project aimed to provide an environmentally friendly method for the decolorization and biosorption of synthetic dye by utilizing fungi as biosorbents. The study was carried out by first growing the fungi in solid medium and then using the fungi as biosorbent to absorb dye in aqueous solution. In the first stage, screening experiments were carried out among 5 different types of fungi, and Pleurotus ostreatus was determined to have the highest growth rate. The Pleurotus ostreatus was recultivated with Remazol Brilliant Blue R dye to determine its dye removal ability. Pleurotus ostreatus sp. exhibited vigorous dye decolorization in agar medium within 2 days. By carrying out batch analysis, 4 parameters were examined, which were the effect of pH, surfactant concentration (Tween 80), salinity concentration and dosage of biosorbent. The results showed that the maximum dye decolourization by Pleurotus ostreatus can be achieved through establishing an acidic condition of pH 2, addition of 0.1mL of Tween 80, 0mg/l of sodium chloride concentration, and dosage of 8 plugs. Lastly, the experimental data was found to fit the Jovanovic Isotherm the most. In conclusion, Pleurotus ostreatus is capable of decolourizing and adsorbing dye particles in the dye aqueous solution.
Tecno Scientifica Publishing
2022-10-11
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/108
10.53623/idwm.v2i2.108
Industrial and Domestic Waste Management; Vol. 2 Iss. 2 (2022); 61-70
2809-4255
10.53623/idwm.v2i2
eng
https://tecnoscientifica.com/journal/idwm/article/view/108/92
Copyright (c) 2022 Kek Kin Lee, Risky Ayu Kristanti, Arma Yulisa, Rubiyatno, Fitria Ningsih, Muhammad Syafrudin, Erika Hernandes, Mihaela Albescu
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/110
2022-12-06T02:54:59Z
idwm:ART
The Effects of Effluents’ Discharge from Some Paint Industries on Soil’s Physicochemical Properties and Bioattenuation of Polluted Soil
Chukwuma, Okafor Ugochukwu
Uchenna, Orji Michael
Ogonna, Umeh Sophina
Chinedu, Onuorah Samuel
Heavy metals, Paint Effluents, Monitored natural attenuation, Soils, Autochthonous Microorganisms
Rapid population growth resulting in industrial proliferation and urbanization has led to the rapid increase in pollution of the environment. Paint industries in urban areas mostly channel their wastewater into streams and on land, which results in the pollution of the receiving environment. This study aims to determine the impact of effluent discharges from paint industries on the soils’ physicochemical properties and the clean-up of the polluted soil through monitored natural attenuation. Composite samples of paint-effluents and soils were collected from paint industries. Their bioattenuation levels and changes in their physicochemical properties were monitored over a six-month period. Fungal isolates from the effluents include Saccharomyces cerevisiae (20%), Rhodotorula species (15%), Aspergillus niger (25%), Aspergillus flavus (15%), and Penicillum notatum (25%), while the bacterial isolates include Staphylococcus aureus (30%), Bacillus sp. (20%), Klebsiella sp.(15%), Escherichia coli (15%), Salmonella sp. (10%), and Staphylococcus species (10%). The effluents showed slightly alkaline pH values while the soils showed slightly acidic pH values. There were significant reductions in the heavy metal contents of the effluent polluted soils as remediation time increased, thus reducing the toxicity of such soil environments. Monitored natural-attenuation methods should be employed and improved as a means of reducing the toxicity of effluents on the environment since they are cheap and effective compared to other methods.
Tecno Scientifica Publishing
2022-10-03
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/110
10.53623/idwm.v2i2.110
Industrial and Domestic Waste Management; Vol. 2 Iss. 2 (2022); 46-60
2809-4255
10.53623/idwm.v2i2
eng
https://tecnoscientifica.com/journal/idwm/article/view/110/88
Copyright (c) 2022 Ugochukwu Okafor
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/112
2022-12-06T03:15:06Z
idwm:ART
Evaluation of Agricultural Waste Management Mechanism in Iran
Zargaran Khouzani, Mohammad Reza
Dehghani Ghahfarokhi, Zahra
agricultural waste, compost, air pollution, greenhouse gases
The unfavourable situation of waste management in Iran can be seen in different sectors, and agriculture is not excluded from these sectors. The wastes of the agricultural industry can be used in a beneficial way in various agricultural applications and other industrial processes. However, the cost of collection, processing, and transportation can be much higher than the income from the beneficial use of such waste. Incineration of crop residues creates numerous environmental problems. The most important side effects of burning crop residues include the emission of greenhouse gases that lead to global warming, air pollution, and things like soil degradation, loss of soil fertility, loss of beneficial microorganisms, intensification of soil erosion, etc. In the current research, which is a review based on library sources, the mechanism of agricultural waste management in Iran has been evaluated. There are other consequences of such actions. The criteria for action are laws regarding the burning of product residues in Iran, the most important of which are the Waste Management Law and the Clean Air Law. Among these methods are sustainable management methods for product residues, including compost production, biochar production, and waste management at the production site.
Tecno Scientifica Publishing
2022-12-06
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/112
10.53623/idwm.v2i2.112
Industrial and Domestic Waste Management; Vol. 2 Iss. 2 (2022); 113-124
2809-4255
10.53623/idwm.v2i2
eng
https://tecnoscientifica.com/journal/idwm/article/view/112/101
Copyright (c) 2022 Mohammad Reza Zargaran Khouzani, Zahra Dehghani Ghahfarokhi
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/117
2022-12-06T02:54:59Z
idwm:Review
Medical Waste during COVID-19 Pandemic: Its Types, Abundance, Impacts and Implications
Tang, Kuok Ho Daniel
COVID-19
incineration
masks
protective equipment
packaging
plastics
COVID-19 has resulted in an abrupt and significant increase in medical waste, albeit with improving air and water quality in certain regions. This paper aims to review the types, abundance, and impacts of COVID-19-related medical waste through examining the contents of 54 peer-reviewed scholarly papers. COVID-19-related medical waste compositions vary over time, with COVID-19 screening, diagnostic, and treatment wastes, as well as used personal protective equipment (PPE), constituting the majority of medical waste at the start, followed by vaccination waste during the peak of vaccination. COVID-19-related medical waste is expected to decrease and steady as more and more countries relax restrictions in an attempt to live with COVID-19. Geographically, the amount of COVID-19-related medical waste depends on population size, with highly-populated countries and cities such as China, Manila, Jakarta, and Bangkok seeing or expected to see a hike in the waste of between 210 tonnes/day and 280 tonnes/day during COVID-19. Packaging of the medical and PPE items forming the medical waste stream also contributes to a substantial amount of waste. As plastics are a major component of medical waste, the increase in COVID-19-related medical waste and its mismanagement have worsened environmental pollution caused by plastics. The surge of medical waste during COVID-19 strained the existing medical waste disposal systems, and incineration of the waste contributed to air pollution, which was often localized. Mismanagement of the waste could also raise public health concerns and cause visual repercussions.
Tecno Scientifica Publishing
2022-10-14
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/117
10.53623/idwm.v2i2.117
Industrial and Domestic Waste Management; Vol. 2 Iss. 2 (2022); 71-83
2809-4255
10.53623/idwm.v2i2
eng
https://tecnoscientifica.com/journal/idwm/article/view/117/93
Copyright (c) 2022 Kuok Ho Daniel Tang
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/119
2022-12-06T02:54:59Z
idwm:ART
Evaluation of Bioavailable Contents of Arsenic, Copper and Zinc in Some Poultry Farms Soils in Osun State, Nigeria
Ogunwale, Taiwo Olusegun
Oyekunle, John Adekunle O.
Ogunfowokan, Aderemi Okunola
Oyetola, Simeon Oyesoji
bioavailability,
heavy metals,
speciation
fractionation
poultry farmlands
surface soil
physico-chemical parameters
potential mobility
Osun State
Nigeria
This work evaluated the mobility and bioavailability of arsenic, copper and zinc
in chosen poultry farmlands situated within Osun State, Nigeria in respect to the soil physicochemical
characteristics. The site was split into 12 zones of about equal sites. Soil samples
were collected over a period of four months from each zone for analysis of soil physicochemical
characteristics and As, Cu and Zn contents in sequential fraction of the soil sample.
Sequential fractionation of soil samples were conducted utilizing reworked Tessier technique,
utilizing Flame Atomic Absorption Spectrophotometer. Mean of total content (mg/kg) and
percentage bioavailability were: As 470.48±48 (31.16%), Cu 62.95±10.61 (29.02%) and Zn
125.58±20.74 (26.67%), respectively. Analysis of variance and correlation analyzes indicated
that soil pH, % clay, % organic carbon, cation exchange capacity, and metal speciation in soil
control metal mobility and bioavailability in the poultry farm soil. The mean contents of As,
Cu and Zn in soil in the sampling area were usually more than those of the control site,
indicating some degrees of contamination of the poultry farm soil by these metals. Also, the
mean contents of As in some zones were considerably greater (p
Tecno Scientifica Publishing
2022-10-25
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/119
10.53623/idwm.v2i2.119
Industrial and Domestic Waste Management; Vol. 2 Iss. 2 (2022); 84-99
2809-4255
10.53623/idwm.v2i2
eng
https://tecnoscientifica.com/journal/idwm/article/view/119/98
Copyright (c) 2022 Taiwo Olusegun Ogunwale, John Adekunle O. Oyekunle, Aderemi Okunola Ogunfowokan, Simeon Oyesoji Oyetola
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/138
2022-12-06T02:54:59Z
idwm:ART
Evaluation of Heavy Metals Found in Vegetables of Some Poultry Farms in Osun State, Nigeria
Ogunwale, Taiwo Olusegun
Oyekunle, John Adekunle O.
Ogunfowokan, Aderemi Okunola
Oyetola, Simoen Oyesoji
Environmental monitoring, health impact, poultry inputs, soil contamination, vegetables, heavy metals
Heavy metals are persistent in the ecosystem and are held responsible for natural accumulation at all feeding levels. Nevertheless, contact does not occur just because of the availability of a contaminant material in the ecosystem. This present work was aimed at evaluating the contents of heavy metals in vegetables sampled from some poultry farms in Osun State. Five vegetables, namely green vegetable, bitter leaf, gruty-stalked jatropha, scent leaf, and water leaf, were tested for heavy metals, such as arsenic, cadmium, copper, iron, lead, and zinc, using a flame atomic absorption spectrophotometer following wet digestion with HNO3. Quality assurance techniques included blank testing, recovery testing, and calibration of concentrations. Descriptive statistics were used for data interpretation. The analytical results signified that those heavy metals were detected in all the vegetables from the various sites. Most of the contents are below the Food and Agriculture Organization/World Health Organization safe range in the vegetable section, with the exception of A. Drastic measures should be adopted to avoid the use of such health-toxic contents of metals in poultry feed. So, it was suggested that there should be constant monitoring of poultry sites to control, limit, and stop heavy metal contamination once and for all.
Tecno Scientifica Publishing
2022-11-28
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/138
10.53623/idwm.v2i2.138
Industrial and Domestic Waste Management; Vol. 2 Iss. 2 (2022); 100-112
2809-4255
10.53623/idwm.v2i2
eng
https://tecnoscientifica.com/journal/idwm/article/view/138/100
Copyright (c) 2022 Taiwo Olusegun Ogunwale, John Adekunle O. Oyekunle, Aderemi Okunola Ogunfowokan, Simoen Oyesoji Oyetola
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/165
2023-11-28T12:07:06Z
idwm:ART
Driving Forces on Household Solid Waste Management Behaviors: A Research for the City of Izmir, Türkiye
Guven, Elif Duyusen
Akinci, Gorkem
Temel, Dilara
The proper solid waste recycling process starts at the houses with the attendance of the individuals. The presented study includes comprehensive research on the individuals’ shopping and waste generation behaviors, awareness of waste management issues, readiness and willingness for source separation, and their self-evaluation and self-annoyance about waste generation. The current study was conducted by administering a detailed questionnaire to 300 people in Zmir, Türkiye's third largest city. The relationships between the answers given and the main factors affecting waste production were determined statistically. Principal component analysis (PCA) identified the key drivers of public behavior associated with waste generation and separation at the source. Through environmental sensitivity, including proper waste management behaviors, age is discovered to be a significant factor. Family phenomena, including stable life and family budgets (32.58%), awareness of people about their inappropriate and disproportionate behaviors towards consumption and waste generation (21.28%), and the impositions of urban life (9.37%) were found to be the major factors influencing waste management habits.
Tecno Scientifica Publishing
2023-02-07
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/165
10.53623/idwm.v3i1.165
Industrial and Domestic Waste Management; Vol. 3 Iss. 1 (2023); 1-16
2809-4255
10.53623/idwm.v3i1
eng
https://tecnoscientifica.com/journal/idwm/article/view/165/116
Copyright (c) 2023 Elif Duyusen Guven, Gorkem Akinci, Dilara Temel
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/183
2023-11-28T12:07:06Z
idwm:ART
Heavy Metals in the Soil Around a Cement Company in Sokoto, Northwestern Nigeria Pose Health Risks
Yahaya, Tajudeen
Umar, Abdulrazak
Abubakar, Muddassiru
Abdulazeez, Abdulmalik
Musa, Bilyaminu
Ibrahim, Yusuf
Carcinogenic risk
Cement
Hazard quotient
Heavy metals
Lead
Cement is widely used in the building industry because it is reliable and because its basic ingredients are inexpensive and abundant. However, the production of cement produces heavy metal-laden dust that can harm humans and the environment. This study aimed to determine the risk posed by heavy metals in the soil around a cement company in Sokoto, Nigeria. Soil samples were obtained at 0.1, 0.5, and 1.0 km from the company and served as test samples, while control samples were obtained at 5.0 km away. The soil samples were treated and assayed for lead (Pb), cadmium (Cd), copper (Cu), and zinc (Zn) using atomic absorption spectroscopy. The values obtained were used to estimate the heavy metals’ average daily inhalation (ADI), average daily dermal exposure (ADDE), hazard quotient (HQ), health risk index (HRI), and carcinogenic risk (CR). Permissible levels of all the heavy metals were detected at all the locations (0.1 > 0.5 > 1.0 > 5.0 km). However, the ADI, ADDE, HQ, HRI, and CR of the heavy metals were above the permissible limits. It can be inferred from the results that the soil around the company can predispose humans to heavy metal toxicities. Consequently, the company needs to prioritize pollution control.
Tecno Scientifica Publishing
2023-02-12
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/183
10.53623/idwm.v3i1.183
Industrial and Domestic Waste Management; Vol. 3 Iss. 1 (2023); 17-26
2809-4255
10.53623/idwm.v3i1
eng
https://tecnoscientifica.com/journal/idwm/article/view/183/117
Copyright (c) 2023 Tajudeen Yahaya, Abdulrazak Umar, Muddassiru Abubakar, Abdulmalik Abdulazeez, Bilyaminu Musa, Yusuf Ibrahim
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/196
2023-11-28T12:07:06Z
idwm:ART
The Impact of Process Variables on the Quantity and Quality of Biogas Generated from Anaerobic Digestion of Food Waste and Rumen Contents
Amoo, Afeez Oladeji
Ahmed, Sabo
Haruna, Adamu
Anaerobic digestion; cleaning system; process factor; biogas; carbondioxide
This research aimed to investigate how combining process variables affects biogas production from anaerobic digestion of food waste and rumen contents. A mixture design was used to evaluate the effects of temperature, pH, agitation frequency, and retention time on biogas quantity and quality. Anaerobic mono-digestion and co-digestion were performed using 2 liter single-stage plastic anaerobic digesters. Cumulative biogas volume and its composition, including carbon dioxide, hydrogen sulphide, moisture, and methane content, were estimated volumetrically. The highest biogas volume and quality were obtained under the following conditions: food waste (0.30 kg), rumen content (0.30 kg), water content (0.40 kg), temperature (34.0° C), pH (9.0), agitation frequency (4 times/day), and retention time (32 days). Combining process variables can significantly impact biogas quantity and quality, and optimal process parameters vary depending on the substrate and operational conditions. Anaerobic digestion can effectively manage organic waste, produce renewable energy, and mitigate greenhouse gases.
Tecno Scientifica Publishing
2023-04-09
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/196
10.53623/idwm.v3i1.196
Industrial and Domestic Waste Management; Vol. 3 Iss. 1 (2023); 27-37
2809-4255
10.53623/idwm.v3i1
eng
https://tecnoscientifica.com/journal/idwm/article/view/196/129
Copyright (c) 2023 Afeez Oladeji Amoo, Sabo Ahmed, Adamu Haruna
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/243
2023-11-28T12:07:06Z
idwm:Review
Municipal Wastewater Treatment Technologies in Malaysia: A Short Review
Kristanti, Risky Ayu
Bunrith, Seng
Kumar, Ravinder
Mohamed, Abdelrahim Omar
Activated sludge process; membrane bioreactor, moving bed biofilm reactor; municipal wastewater
The aim of this study was to evaluate different municipal wastewater treatment technologies for commercial use and develop an optimized system for a case study plant and future plant designs. Municipal wastewater, classified as a low-strength waste stream, can be treated using aerobic and anaerobic reactor systems or a combination of both. Aerobic systems are suitable for low-strength wastewaters, while anaerobic systems are suitable for high-strength wastewaters. Malaysia has actively implemented various wastewater treatment technologies to address the increasing demand for clean water and reduce environmental pollution. Some commonly used technologies in Malaysia include Activated Sludge Process (ASP), Membrane Bioreactor (MBR), and Moving Bed Biofilm Reactor (MBBR). These technologies show promise in removing emerging pollutants, such as pharmaceuticals and personal care products, which are not effectively eliminated by conventional treatment methods. Additionally, Malaysia could consider investing in renewable energy sources like solar and wind to power wastewater treatment plants, thereby reducing reliance on non-renewable energy and supporting sustainable development. It is also important to emphasize continued public awareness and education initiatives to promote responsible wastewater disposal practices and environmental stewardship.
Tecno Scientifica Publishing
2023-05-16
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/243
10.53623/idwm.v3i1.243
Industrial and Domestic Waste Management; Vol. 3 Iss. 1 (2023); 38-46
2809-4255
10.53623/idwm.v3i1
eng
https://tecnoscientifica.com/journal/idwm/article/view/243/138
Copyright (c) 2023 Risky Ayu Kristanti, Seng Bunrith, Ravinder Kumar, Abdelrahim Omar Mohamed
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/245
2023-11-28T12:07:06Z
idwm:Review
Exploring the Potential of Composting for Bioremediation of Pesticides in Agricultural Sector
Lau, Yu Yan
Hernandes, Erika
Kristanti, Risky Ayu
Wijayanti, Yureana
Emre, Mehmet
Pesticides; sources; fate; impacts; challenges; composting
The rapid expansion of the human population has raised the chemical stress on the environment due to the increased demand of agricultural yields. The use of pesticides is the primary contributor to environmental chemical stress, which is essential for agricultural expansion in order to produce enough food to sustain the burgeoning human population. Pesticide residues in soil have grown to be a subject of rising concern as a result of their high soil retention and potential harm to unintended species. Diverse remediation strategies, such as physical, chemical, and biological, for limiting and getting rid of such contaminants have been put forth to deal with this problem. Bioremediation is one of these techniques, which has been deemed the best for reducing pollution because of its low environmental impact, simplicity of operation and construction. Microorganisms are implemented in this technique to break down and get rid of toxins in the environment or to reduce the toxicity of chemical compounds. This study thoroughly analyses the different composting soil remediation methods, including landfarming, biopiles, and windrows, to reduce and eliminate soil pollution. Although biological treatment is the best option for cleaning up polluted soil, it is still important to evaluate and review the approaches over the long term to determine whether they are effective in the field. It is because the reactivity of the microorganisms is highly dependent on environmental parameters, and the contemporary environment is characterised by unpredictable weather patterns, localised droughts, and temperature fluctuations.
Tecno Scientifica Publishing
2023-05-22
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/245
10.53623/idwm.v3i1.245
Industrial and Domestic Waste Management; Vol. 3 Iss. 1 (2023); 47-66
2809-4255
10.53623/idwm.v3i1
eng
https://tecnoscientifica.com/journal/idwm/article/view/245/139
Copyright (c) 2023 Mehmet Emre, Yu Yan Lau, Erika Hernandes, Risky Ayu Kristanti, Yureana Wijayanti
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/264
2023-11-28T12:07:41Z
idwm:Review
A Review on Pollutants Found in Drinking Water in Sub-Sahara African Rural Communities: Detection and Potential Low-cost Remediation Methods
Fouda-Mbanga, Bienvenu Gael
Seyisi, Thulethu
Nthwane, Yvonne Boitumelo
Nyoni, Bothwell
Tywabi-Ngeva, Zikhona
Contaminants
Drinking water
Inorganic
Organic
Sub-Sahara Africa
Water is the most essential substance that supports various life mechanisms. It is a fundamental and necessary requirement for mankind and all other living creatures on the planet. Therefore, daily drinking water should be clean, readily available, sufficient, and free from harmful substances. However, in many rural areas, most sources of drinking water are assumed to be safe for human consumption, but this is not always the case. This work aims to provide a review of pollutants found in the drinking water of Sub-Saharan rural communities and explore potential low-cost remediation methods. The assessment of water pollutants and their remediation methods has been the primary focus of research for several years. Additionally, the World Health Organisation has established various minimum standards regarding the concentration of common pollutants in water. This review presents the major sources of water, the origin of contaminants, the different types of pollutants, and remediation methods to enhance the current knowledge in the field of rural drinking water contaminants.
Tecno Scientifica Publishing
2023-08-03
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/264
10.53623/idwm.v3i2.264
Industrial and Domestic Waste Management; Vol. 3 Iss. 2 (2022); 67-89
2809-4255
10.53623/idwm.v3i2
eng
https://tecnoscientifica.com/journal/idwm/article/view/264/159
Copyright (c) 2023 Bienvenu Gael Fouda-Mbanga, Thulethu Seyisi, Yvonne Boitumelo Nthwane, Bothwell Nyoni, Zikhona Tywabi-Ngeva
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/291
2023-11-28T12:07:41Z
idwm:Review
Phytoremediation of Microplastics: A Perspective on Its Practicality
Tang, Kuok Ho Daniel
accumulate
adsorb
microplastics
phytoremediation
rhizosphere
translocation
Microplastics have permeated all parts of the environment, rendering their removal essential. Numerous strategies ranging from the physical removal of mismanaged plastic items to the biodegradation of microplastics with microorganisms and biocatalysts have been proposed to alleviate microplastic pollution. Phytoremediation is one of the plastic-removing strategies, but it has not received much attention. This perspective paper aims to review the phytoremediation of microplastics and discuss its practicality. The paper shows that plants could act as interceptors and a temporary sink of microplastics by facilitating their deposition, adsorbing them, trapping them in the root zone, enabling them to cluster on the roots, taking them up, translocating them, and accumulating them in various plant parts. However, there was a lack of evidence pointing to the degradation of microplastics after they were adsorbed, taken up, and stored. Weak adsorption and environmental factors may cause the trapped microplastics to desorb, resuspend, or evade, thus also making plants a source of microplastics. The microplastics trapped and accumulated in plants may be transferred to the higher trophic levels of the food chain through ingestion and raise concerns over their ecotoxicities. Unlike localized pollution, microplastic pollution is widespread, which limits the applicability of phytoremediation. Besides, microplastics could adversely impact plant health and the ability of plants to remove other environmental pollutants. These drawbacks may reduce the attractiveness of phytoremediation unless it can be effectively combined with bioremediation to degrade microplastics.
Tecno Scientifica Publishing
2023-09-21
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/291
10.53623/idwm.v3i2.291
Industrial and Domestic Waste Management; Vol. 3 Iss. 2 (2022); 90-102
2809-4255
10.53623/idwm.v3i2
eng
https://tecnoscientifica.com/journal/idwm/article/view/291/163
Copyright (c) 2023 Kuok Ho Daniel Tang
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/338
2023-12-07T00:14:17Z
idwm:Review
Bioremediation of Pesticide-Contaminated Soils through Composting: Mechanisms, Factors, and Prospects
Wong, Wei Lin
Pangging, Monmi
Rubiyatno
Composting; bioremediation; pesticide; contaminated soil
Pesticide contamination of soils poses a significant environmental and agricultural challenge on a global scale, with escalating pesticide consumption in various regions. Composting has emerged as a cost-effective and sustainable bioremediation method for pesticide-contaminated soils. This review article delves into the mechanisms, factors influencing efficiency, and the pros and cons of composting as a strategy to address pesticide pollution in soils. Pesticides enter soil environments through both point sources, such as spillage from storage or disposal areas, and non-point sources, including intensive agricultural use and household applications. The physical and chemical characteristics of pesticides, coupled with soil factors like permeability and particle size, influence their fate and behavior in soils. Composting, as a bioremediation method, offers several advantages, including complete destruction of pesticide compounds through microbial degradation, transforming them into less hazardous products. Key factors affecting composting efficiency include nutrient availability, particle size, temperature, pH, oxygen, and moisture content, all crucial for microorganism growth and pesticide degradation. This article underscores the importance of maintaining optimal conditions for these factors to ensure the high performance and efficiency of pesticide degradation during composting. It also discusses the potential drawbacks of this method. Composting proves to be a promising and eco-friendly approach for remediating pesticide-contaminated soils, addressing both environmental concerns and the need for sustainable agricultural practices.
Tecno Scientifica Publishing
2023-12-02
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/338
10.53623/idwm.v3i2.338
Industrial and Domestic Waste Management; Vol. 3 Iss. 2 (2022); 103‒114
2809-4255
10.53623/idwm.v3i2
eng
https://tecnoscientifica.com/journal/idwm/article/view/338/176
Copyright (c) 2023 Wei Lin Wong, Monmi Pangging, Rubiyatno
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/349
2023-12-21T02:01:47Z
idwm:ART
Sustainable Energy from Waste: A Feasibility Study in Miri, Malaysia
Chua, Ming Xuan
Hashim, Nur Hasyimah
Downmore, Musademba
Gani, Paran
The growth of urban populations, industrialization, and economic development has led to a surge in solid waste production. When local recycling infrastructure falls short, much of this waste ends up in landfills, causing environmental and social challenges. This study aims to assess the feasibility of converting municipal solid waste (MSW) into energy, with a focus on combustion chamber modeling in Miri, Sarawak. Data on MSW composition are obtained from secondary sources. Ansys Fluent software is used to model the combustion chamber, and simulations are conducted to explore temperature, turbulence, and species distribution. MSW composition illustrates higher substantial fractions, with 39.8% being food waste, followed by 20.7% plastic/rubber. Calorific values range from 4652 kJ/kg for food waste to 32564 kJ/kg for plastic/rubber. Combustion simulations result in maximum flue gas temperatures of 1500 °C, 1200 °C, and 1800 °C under varying air inlet conditions. Turbulence intensities on the grate range from 125% to 174% for these air inlet configurations. The study concludes that moisture content significantly affects calorific value and heat generation during combustion. Higher turbulence intensities lead to increased reaction rates and heat generation, improving the energy efficiency of the process.
Tecno Scientifica Publishing
2023-12-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/349
10.53623/idwm.v3i2.349
Industrial and Domestic Waste Management; Vol. 3 Iss. 2 (2022); 115‒126
2809-4255
10.53623/idwm.v3i2
eng
https://tecnoscientifica.com/journal/idwm/article/view/349/181
Copyright (c) 2023 Ming Xuan Chua, Nur Hasyimah Hashim, Musademba Downmore, Paran Gani
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/357
2023-12-21T02:01:44Z
idwm:Review
Nanoparticles in Soil Remediation: Challenges and Opportunities
New, Wei Xuen
Ogbezode, Joseph Ekhebume
Gani, Paran
Nanoremediation emerges as a promising technology for mitigating soil contamination, encompassing various nanotechnology applications, including chemical degradation, Fenton-type oxidation, photocatalytic degradation, immobilization, and integration with bioremediation techniques like phytoremediation. In addressing soil pollution, the most extensively researched nanomaterials (NMs) are based on carbon, metal and metal oxide, nZVI, and other nanocomposites. Nevertheless, limitations accompany the use of NMs in soil remediation. To assess whether nanotechnology applications outweigh environmental threats, it is crucial to investigate potential effects of NMs on terrestrial vegetation, soil organisms, and human well-being. The impacts of NMs on ecology and the soil environment must be taken into consideration when formulating remediation strategies. Future directions for applied and fundamental studies could include developing multifaceted nanocomposites, integrating them with technologies like bioremediation. Additionally, exploring real-time control and monitoring of NMs and their efficacy in removing pollutants is worth consideration. Pursuing these avenues is vital for advancing the field of soil remediation and comprehending the impact of nanotechnology on the environment.
Tecno Scientifica Publishing
2023-12-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/357
10.53623/idwm.v3i2.357
Industrial and Domestic Waste Management; Vol. 3 Iss. 2 (2022); 127‒140
2809-4255
10.53623/idwm.v3i2
eng
https://tecnoscientifica.com/journal/idwm/article/view/357/182
Copyright (c) 2023 Wei Xuen New, Joseph Ekhebume Ogbezode, Paran Gani
https://creativecommons.org/licenses/by/4.0
oai:oai.tecnoscientifica.com:article/375
2024-02-20T10:02:45Z
idwm:ART
Health Risk Assessment of Heavy metals, Physicochemical properties and Microbes in Groundwater near Igando Dumpsite in Lagos, Nigeria
Yahaya, Tajudeen
Chidi, Okeke
Abdulrahman, Sani
Oladele, Esther
Abdulrakib Abdulrahim
Abdulganiyu, Yunusa
Izuafa, Abdulrazaq
The most common and cost-effective waste disposal method is the dumpsite; however, leachate from dumpsites may percolate and compromise groundwater sources. This study evaluated the levels of heavy metals (lead, cadmium, chromium, copper, and arsenic), physicochemical parameters (pH, electrical conductivity, total dissolved solids, hardness, calcium, magnesium, and chloride), and microorganisms in borehole water samples obtained at distances of 50, 100, 200, and 400 meters from the Igando dumpsite in Lagos, Nigeria. The health hazards associated with the heavy metals were also calculated. Physicochemical analysis indicated that the water samples were acidic, with pH values ranging from 4.30±0.01 to 5.21±0.008. They contained levels of calcium (166.73±0.01 - 328.66±0.06 mg/l), magnesium (83.72±0.02 - 119.40±0.17 mg/l), hardness (416.01±0.11 mg/l - 820.00±1.63 mg/l), and chloride (20.07±0.02 - 120.90±0.81 mg/l) that exceeded the limits set by the World Health Organization. Heavy metal analysis showed that, in all locations, lead exceeded the permissible limits, cadmium exceeded the limits except for the 400-m location, and copper, chromium, and arsenic (except for the 50-m location) were within permissible limits. The average daily intake and hazard quotient of the heavy metals were both within recommended limits, but the carcinogenic risks of lead, cadmium, and copper in water collected at a distance of ≤100m exceeded the threshold. Microbiological examinations revealed non-permissible levels of bacteria at all locations, coliforms at the 400-m location, and fungi at the 50-m and 400-m locations. On average, the parameters significantly (p<0.05) increased in concentrations as the proximity to the dumpsite decreased. These findings indicate that borehole water is not suitable for drinking without treatment.
Tecno Scientifica Publishing
2024-02-06
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
application/pdf
https://tecnoscientifica.com/journal/idwm/article/view/375
10.53623/idwm.v4i1.375
Industrial and Domestic Waste Management; Vol. 4 Iss. 1 (2024); 1-13
2809-4255
10.53623/idwm.v4i1
eng
https://tecnoscientifica.com/journal/idwm/article/view/375/193
Copyright (c) 2024 Tajudeen Yahaya, Okeke Chidi, Sani Abdulrahman, Esther Oladele, Abdulrakib Abdulrahim, Yunusa Abdulganiyu, Abdulrazaq Izuafa
https://creativecommons.org/licenses/by/4.0