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Assessing the Factors Influencing Effective Municipal Solid Waste Management System in Barishal Metropolitan Areas
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作者 Tareq Mahamud Abir Mallika Datta Sumi Rani Saha 《Journal of Geoscience and Environment Protection》 2023年第1期49-66,共18页
Unorganized municipal solid waste (MSW) disposal system leads to stress on ecosystems and disturbs various nature cycles and human health. Solid waste management all over world is looked as a major challenge to civil ... Unorganized municipal solid waste (MSW) disposal system leads to stress on ecosystems and disturbs various nature cycles and human health. Solid waste management all over world is looked as a major challenge to civil bodies, especially in developing countries like Bangladesh. The proper management system of municipal solid waste depends on various factors like social, cultural, financial, political, environmental, physical and institutional and so on. The purpose of this study is to explore the leading factors that affect the solid waste management in Barishal city. For achieving this purpose, this research first has identified the socio-economic, cultural, physical and technical, institutional and environmental factors and then analyzed the factors which affect the solid waste management system in the study area. To achieve the purpose of the study, quantitative method has been used in this research. As a sample of this study, 150 household heads from total household members of the city have been selected randomly by using lottery method. A structured questionnaire has been constructed for collecting quantitative data. The quantitative data have been analyzed in this study by using SPSS Program, and Microsoft Excel. The findings of the study show that all city people know solid waste and solid waste management stakeholders present in the city and waste pickers collect all types of waste in the city and socio-economic, cultural, physical and technical, institutional factors affect the effective solid waste management in the study area where environmental factors have no influence on effective solid waste management in the study area. The study people have a bad impression of the current existing management system of the solid waste and they express their expectations where they mention that if municipal authorities improve the condition of the infrastructure, roads and vehicles;allow more budgets to manage waste;take proper strategies and planning to manage waste smartly like imposing fines, set up rules, then the municipal authorities will be able to manage solid waste properly. Finally, this research has proposed some recommendations that might be helpful for the policy-makers in the study area for making policies and further research regarding solid waste management. 展开更多
关键词 ECOSYSTEM Solid Waste management municipal Solid Waste management
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Current Situation Analysis and Suggestions for Solid Waste Management Practices among Households in Freetown
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作者 Patrick Fayia Kanty Mohamed Yateh Yongji Zhang 《Journal of Geoscience and Environment Protection》 2024年第3期95-109,共15页
Freetown which is the capital city of Sierra Leone is facing challenges with population growth, urbanization, and industrialization, leading to an increase in municipal solid waste (MSW) generation. The study aims to ... Freetown which is the capital city of Sierra Leone is facing challenges with population growth, urbanization, and industrialization, leading to an increase in municipal solid waste (MSW) generation. The study aims to evaluate MSW generation, composition, and disposal methods, as well as the impact of collection fees, policy implementation, and women’s participation in municipal solid waste management (MSWM). The study used both qualitative and quantitative methods for data collection and analysis. The study administered 393 structured questionnaires in three selected sections to collect data on variables such as family size, education, level of knowledge, etc. The study used door-to-door data collection to determine the rate of solid waste generation, composition, and disposal in 66 households from two of the selected sections and 34 households from the other section to evaluate the current situation of MSWM practices among households in Freetown. The study used a descriptive statistic to analyze the data collected using Origin-Pro9 and MS Excel software. The findings showed that with a 4.2% urban growth rate, Freetown had a population of 1,467,543 in 2023, generating 851 tons of MSW per day, with organic waste accounting for 78% of the total MSW generated. Plastic waste generation also increased from 7.6% in 2020 to 13% in 2023. The study emphasizes the need to sustain the MSWM system by prioritizing solid waste collection fees, policy enforcement, and women’s participation in the MSWM sector. It further suggests and provides recommendations for developing an efficient and sustainable MSWM system in Sierra Leone, including knowledge transfer from countries like China and the US. 展开更多
关键词 Freetown municipal Solid Waste management Waste Composition Waste Disposal Waste Generation
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A mixed integer linear programming approach for municipal solid waste management
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《Journal of Environmental Sciences》 SCIE EI CAS CSCD 1997年第4期49-63,共15页
AmixedintegerlinearprogrammingapproachformunicipalsolidwastemanagementGordonGuoHeHuangEnvironmentalSystemsEn... AmixedintegerlinearprogrammingapproachformunicipalsolidwastemanagementGordonGuoHeHuangEnvironmentalSystemsEngineering,Univer... 展开更多
关键词 A mixed integer linear programming approach for municipal solid waste management
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An Analysis of Solid Waste Generation and Characterization in Thika Municipality of Kiambu County, Kenya
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作者 Mugo Ephantus Kinyua Robert Njogu Paul 《Journal of Environmental Science and Engineering(B)》 2015年第4期210-215,共6页
The rapid increase in population in Thika has led to increase in municipal solid waste generation, which has posed challenges in the waste disposal and management. This study was carried out to quantify and characteri... The rapid increase in population in Thika has led to increase in municipal solid waste generation, which has posed challenges in the waste disposal and management. This study was carried out to quantify and characterize the waste generated within Thika municipality. Six months data (between March 2014 and August 2014) of waste stream at the dumpsite was reviewed and analyzed. The survey indicated that 66.95% ± 0.34% of the total waste dumped originated from the municipal council ofThika (MCT). It constitutes of domestic, commercial and institutional waste. 33.05% is industrial waste. Sixty eight percent (68%) of the waste consisted primarily of four components: paper, plastic, organics and food. Food accounted for 15.51% ± 0.95%, paper 18.31% ± 1.7%, plastics 17.89% ± 0.81% and organics other than food 16.51% ±1.01%, respectively obtained at 95% confidence level. Each of the components has some level of recovery. Some of the reusable and recyclable materials were being recovered, food waste had the highest recovery rate of 23% ± 1.7% and was used as animal feed, while plastic (soft plastic) 17% ± 0.93% was sold to recyclers. Recovery of materials for recycling and composting was estimated at 10.21 tonnes or 11.35% of daily generation, leaving 76.44 tonnes per day that can be converted into useful energy. The study shows waste in this dumpsite can be exploited to by converting it to energy thus a good solution for waste management. 展开更多
关键词 municipal solid waste municipal solid waste management waste to energy Thika municipality.
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Evaluating the Effects of the Concentration of Large Scale Municipal Solid Waste Incineration Facilities Using Geographical Information System
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作者 Kosuke Toshiki Pham Quy Giang Jeong Soo Yu 《Journal of Environmental Science and Engineering(B)》 2013年第1期53-60,共8页
In Japan, each municipality generally has its own municipal solid waste incineration facilities because of the principle of self-management in the respective territories. Typically, a small municipality often owns a s... In Japan, each municipality generally has its own municipal solid waste incineration facilities because of the principle of self-management in the respective territories. Typically, a small municipality often owns a small facility. However, a large facility which can run continuously at high temperature with stability would be preferable if the dioxin generation mechanism is to be considered. Accordingly, municipalities in contiguous areas should cooperate mutually by using a large facility. To evaluate the effect of the concentration of large facilities, the authors created a GIS (Geographic Information System) based database of combustible waste generation at town level in Shizuoka Prefecture. Focusing on large facilities in Shizuoka City and superannuated facilities in Shida area, the authors evaluated the effect of the concentration of large facilities in Shizuoka city on utilization rate of facilities, energy balance and CO2 emissions. Our results showed the amount of light oil consumption and CO2 emissions increased because the mileage distance of garbage collection trucks becomes longer. However, the utilization rates of facilities and the amount of energy recovery from waste are improved. From these standpoints, the authors conclude that the concentration of large facilities is better compared to a single municipality based facility. 展开更多
关键词 municipal solid waste management wide area joint management energy recovery from waste CO2 emissions GIS.
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Generation, Characterization and Management Practices of Household Solid Wastes in Cowfield, Paynesville City, Liberia
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作者 Fallah Nyumah Joseph F. Charles +2 位作者 Isaac A. Bamgboye Ademola K. Aremu James S. Eisah 《Journal of Geoscience and Environment Protection》 2021年第4期113-127,共15页
The success of any waste management system requires accurate and up-to-date </span></span><span><span><span style="font-family:""><span style="font-family:Verdana;&... The success of any waste management system requires accurate and up-to-date </span></span><span><span><span style="font-family:""><span style="font-family:Verdana;">data on quantity, composition of waste. Waste generation data from household are needed to address issues relating to municipal solid wastes such as management method, performance improvement, policy, regional and local planning, administrative, cost accounting, design and operation of landfill facilities and environmental quality. This study was conducted to provide empirical data on generation rates, quantity and composition, management practices, challenges and strategies from urban household. Waste collection, weighing, questionnaires survey and field observation were methods used during the study. Waste was collected and weighed from 60 households using multi-stage sampling technique for seven days. Questionnaires were analyzed </span><span style="font-family:Verdana;">using </span><span style="font-family:Verdana;">Statistical Package for Social Sciences version 20 and Excel. </span><span style="font-family:Verdana;">A total of 1125.2 kg of waste was recorded. </span><span style="font-family:Verdana;">The average household waste generation was 3 kg per day with per capita generation rate of 0.41 kg/cap/day. The compositional analysis showed that Organic (53%), Plastic (11%), Textile (6%), Metal (2%), Glass (1%), Paper and Cardboard 4% and others (22%). Solid waste management practices are very rudimentary. Burning (53.7%) and Open Dumping (30%) were found to be the most commonly used method of disposal with very limited collection service (33.3%) and segregation. The most challenges faced by households were communal disposal area (66.7%) and waste service providers (21.7%) storage bins (11.6%). Waste to energy (48.3%) and compositing (23.3%) were the most considered option for waste management by the respondents. 展开更多
关键词 Waste Generation COMPOSITION HOUSEHOLD municipal Solid Waste management
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GHG Emissions Estimation from Household Solid Waste Management in Jakarta, Indonesia
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作者 Aretha Aprilia Tetsuo Tezuka 《Journal of Energy and Power Engineering》 2013年第4期661-668,共8页
This study defines and compares four scenarios for MSW (municipal solid waste) management: Scenario 1, unsorted waste taken to a landfill (baseline scenario); Scenario 2, sorted waste used for home or communal co... This study defines and compares four scenarios for MSW (municipal solid waste) management: Scenario 1, unsorted waste taken to a landfill (baseline scenario); Scenario 2, sorted waste used for home or communal composting; Scenario 3, sorted waste used for anaerobic digestion; and Scenario 4, sorted waste taken to a composting centre. The results of this study suggest that Scenario 1 would emit the highest levels of GHG (greenhouse gas) emissions, 692 x 103 tonnes CO2eq per year. Scenario 3 would have the lowest levels of GHG emissions, 195 x 103 tonnes CO2eq per year. Compared with the baseline scenario, it yields a 72% reduction of GHG emissions with a total savings of 498 ~ 103 tonnes CO2eq per year. The second-best option is Scenario 2, followed closely by Scenario 4, both yield 66.6% reductions with deviation by 0.03%. The deviation is due to transportation, which emission is negligibly small. The amounts of GHG savings for Scenario 2 and 4 are 461.3 ×10^3 tonnes CO2eq per year and 461×10^3 tonnes CO2eq per year, respectively It is evident from these results that anaerobic digestion has the highest potential for reducing GHG emissions. 展开更多
关键词 municipal solid waste management greenhouse gas emission Indonesia.
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A critical review:emerging bioeconomy and waste-to-energy technologies for sustainable municipal solid waste management 被引量:2
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作者 To-Hung Tsui Jonathan W.C.Wong 《Waste Disposal and Sustainable Energy》 2019年第3期151-167,共17页
Municipal solid waste(MSW)management has emerged as probably the most pressing issue many governments nowadays are facing.Traditionally,Waste-to-Energy(WtE)is mostly associated with incineration,but now,with the emerg... Municipal solid waste(MSW)management has emerged as probably the most pressing issue many governments nowadays are facing.Traditionally,Waste-to-Energy(WtE)is mostly associated with incineration,but now,with the emergence of the bioeconomy,it embraces a broader definition comprising any processing technique that can generate electricity/heat or produce a waste-derived fuel.Under the ambit of the circular economy many nations are looking for,additional effort must be made to be sure of acquiring the most updated information and paving a sustainable path for managing MSW in such a frame.In this regard,we have undertaken a critical review of various technologies,with their updated progress,involved in the exploitation of MSW as a renewable resource,along with the critical advantages and limitations on energy and material cycling for sustainable MSW management.Incineration,the most widely used method,is nowadays difficult to further apply due to its dubious reputation and social opposition.Meanwhile,to address the organic fraction of MSW which currently is mostly unrecycled and causes disposal issues,the biological approach presents an attractive option.The new emphasis of bioeconomy leads us to understand how environmental biotechnologies should be better connected/integrated for more sustainable MSW management.This article is concluded with advances of future prospects,which can serve as a timely reminder to encourage competent authorities/researchers to work towards further improvement of the present MSW management system. 展开更多
关键词 municipal solid waste management SUSTAINABILITY Circular economy BIOECONOMY WASTE-TO-ENERGY Anaerobic digestion
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A review on current status of municipal solid waste management in India 被引量:4
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作者 Neha Gupta Krishna Kumar Yadav Vinit Kumar 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2015年第11期206-217,共12页
Municipal solid waste management is a major environmental issue in India. Due to rapid increase in urbanization, industrialization and population, the generation rate of municipal solid waste in Indian cities and town... Municipal solid waste management is a major environmental issue in India. Due to rapid increase in urbanization, industrialization and population, the generation rate of municipal solid waste in Indian cities and towns is also increased. Mismanagement of municipal solid waste can cause adverse environmental impacts, public health risk and other socio-economic problem. This paper presents an overview of current status of solid waste management in India which can help the competent authorities responsible for municipal solid waste management and researchers to prepare more efficient plans. 展开更多
关键词 municipal solid waste Characteristic management India Disposal
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Municipal solid waste management in Dalian: practices and challenges 被引量:1
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作者 Xinbei WANG Yong GENG 《Frontiers of Environmental Science & Engineering》 SCIE EI CAS CSCD 2012年第4期540-548,共9页
The fast growing of urban areas in developing countries has brought serious problems on municipal solid waste (MSW) management. It will be rational to adopt an integrated approach to deal with such a challenge so th... The fast growing of urban areas in developing countries has brought serious problems on municipal solid waste (MSW) management. It will be rational to adopt an integrated approach to deal with such a challenge so that the overall eco-efficiency of MSW management could be improved. To better examine how attributes of integrated MSW management are being interpreted and put into practice, and to explore what changes should be made to improve the application of integrated MSW management, we employ a case study method so that lessons learned could be used to inform initiatives in other cities and the potential solution may offer feasible strategies. The case study city is Dalian, a typical seaport city with fast growing rate in economy. The outcomes of this case study show us that fragmented management structure, ineffective and inefficient enforcement of relevant regulations, backward technologies, limited financial resources and lack of public participation are main barriers for the implementation of integrated MSW management. Consequently, in order to overcome these barriers, we propose an integrated management framework on MSW management, aiming to maximize the overall eco-efficiency of MSW management. 展开更多
关键词 municipal solid waste (MSW) management 3R principles CHALLENGES ECO-EFFICIENCY effective and efficient enforcement
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Effects of introducing energy recovery processes to the municipal solid waste management system in Ulaanbaatar, Mongolia
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作者 Kosuke Toshiki Pham Quy Giang +4 位作者 Kevin Roy B.Serrona Takahiro Sekikawa Jeoung-soo Yu Baasandash Choijil Shoichi Kunikane 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2015年第2期178-186,共9页
Currently, most developing countries have not set up municipal solid waste management systems with a view of recovering energy from waste or reducing greenhouse gas emissions. In this article, we have studied the poss... Currently, most developing countries have not set up municipal solid waste management systems with a view of recovering energy from waste or reducing greenhouse gas emissions. In this article, we have studied the possible effects of introducing three energy recovery processes either as a single or combination approach, refuse derived fuel production,incineration and waste power generation, and methane gas recovery from landfill and power generation in Ulaanbaatar, Mongolia, as a case study. We concluded that incineration process is the most suitable as first introduction of energy recovery. To operate it efficiently,3Rs strategies need to be promoted. And then, RDF production which is made of waste papers and plastics in high level of sorting may be considered as the second step of energy recovery.However, safety control and marketability of RDF will be required at that moment. 展开更多
关键词 municipal solid waste management Energy recovery Greenhouse gas emissions Landfill volumes Developing country Refuse derived fuel
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