scholarly journals Application of Multi-Criteria Decision-Making Process to Select Waste-to-Energy Technology in Developing Countries: The Case of Ghana

2021 ◽  
Vol 13 (22) ◽  
pp. 12863
Author(s):  
Adebayo Agbejule ◽  
Ahm Shamsuzzoha ◽  
Kodjovi Lotchi ◽  
Kendall Rutledge
Keyword(s):  
Anaerobic Digestion ◽  
Waste Management ◽  
Implementation Strategies ◽  
Management Development ◽  
Waste To Energy ◽  
Decision Making Process ◽  
Biochemical Processes ◽  
Hierarchy Process ◽  
The City ◽  
Pair Wise Comparison

Municipal solid waste (MSW) in the Accra region of Ghana has created the need for innovative ways to deal with waste management crises facing the city. The goal of this study is to use the analytical hierarchy process (AHP) to select an appropriate waste-to-energy (WtE) technology for Accra. The AHP methodology is used to assess four WtE technologies, namely landfill biogas, incineration, anaerobic digestion, and aerobic composting. Three main criteria and nine sub-criteria are identified for pair-wise comparison and assessed by 10 experts. The results show that incineration is the most preferred technology, followed by anaerobic digestion and aerobic digestion, with landfilled gas being the least preferred technology. Stakeholders in waste management development in Ghana can utilize the findings of the study to develop implementation strategies for capacity and institutional capabilities for both thermochemical and biochemical processes in the country.

scholarly journals Tipping fee determination to support the waste to energy concept at the city of Depok, Indonesia

2019 ◽  
Vol 90 ◽  
pp. 01007
Author(s):  
Farizal ◽  
Tammarar Ekky
Keyword(s):  
Waste Management ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Landfill Gas ◽  
Limited Resource ◽  
Early Years ◽  
Waste To Energy ◽  
Energy Concept ◽  
The City ◽  
The Ideal

This study determines the tipping fee of municipal solid waste in the city of Depok. Two methods used to determine the fee were the income and outcome approach, and the limited resource approach. Two conditions were assumed (i.e., waste management and landfill gas bioreactor availability). From the results, the ideal tipping fee was 97,704 IDR/tonne and the application of a landfill gas reactor could boost income, thus reduced the amount of the fee collected, especially in the early years of the landfill bioreactor in operation. The fees were 40,032 and 63,337 IDR/tonne for scenario 1 and 2, respectively.

scholarly journals Analysis of Tokyo’s municipal solid waste management system

2020 ◽  
Vol 7 (2) ◽  
Author(s):  
Yakov Vishnyakov ◽  
Alexander Kanunnikov
Keyword(s):  
Waste Management ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Solid Waste Management ◽  
Complete Information ◽  
Environmental Safety ◽  
Waste To Energy ◽  
Municipal Solid Waste Management ◽  
Environmental Standards ◽  
The City

The article analyzes the features of municipal solid waste management in Tokyo. Special attention is paid to the analysis of trends in the volume of waste in the city of Tokyo over the past decades, as well as the reasons for the constant decline in these volumes. The article deals with the waste management activities of the Clean Authority of Tokyo, discusses the features of treatment of various types of waste, as well as the arrangement of the Tokyo city waste landfill. It was noted that the capital of Japan succeeded in creating an effective system for the disposal and recycling of municipal solid waste that can ensure the environmental safety of the city, as well as integrate waste into the country’s fuel and energy complex. An important feature of Japanese waste management companies is the desire not only to comply with official environmental standards, but also to adhere to their own standards, even more stringent. Based on an analysis of Japanese experience, the authors put forward proposals for optimizing the sphere of waste management in Russia. In particular, attention is drawn to the need to prevent an environmental catastrophe caused by a careless attitude to waste, improve the quality of life of citizens, prevent social unrest associated with environmental pollution, and also involve waste in the generation of electricity and heat. The authors note that as part of the “trash” reform, it is necessary to increase the environmental awareness of citizens, provide citizens with relevant and complete information about the industry, and create stricter environmental standards for waste to energy plants and other enterprises involved in waste management.

Potential Utilization of Municipal Solid Waste of Gwalior City, India

2021 ◽  
Vol 9 (9) ◽  
pp. 1530-1534
Author(s):  
Animesh Sharma
Keyword(s):  
Anaerobic Digestion ◽  
Waste Management ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Landfill Site ◽  
Waste To Energy ◽  
Material Recovery ◽  
Management Scenario ◽  
Treatment Processes ◽  
Material Recovery Facility

Abstract: This paper aims at determining the recent composition of municipal solid waste of Gwalior city and provide sa notion to take action and proposed economical & viable waste management technologies and techniques for effective utilization of waste. In this study, MSW samples were collected from the Kedarpur landfill site situated at Shivpuri link road and were analyzed for physical composition. The study reveals that Gwalior city produces a high quantity of biodegradable waste (58.03%) with high moisture content (68.60%) and plastic waste (15.96%). Waste composition and characterization disclosed that vigorous segregation is required before dispatching the waste for different treatment processes or landfilling. Based on this study, we may conclude that the combined mechanism of planning and implementation of waste-to-energy (WTE) technologies and treatment such as Anaerobic Digestion/ Bio-methanation, Material recovery facility (MRF), and Bio-remediation/Bio-mining for old existing waste and new generating waste is needed for upgrading the waste management scenario of the city. Keywords: Municipal solid waste (MSW), Kedarpur Landfill site, Composition & Characteristics, Waste to Energy, Anaerobic Digestion, Bio-Mining, Recycling & Materials Recovery Facility (MRF)

PRIORITIZING FEEDERS FOR MAINTENANCE ACTIVITIES USING AHP IN NUCLEAR POWER PLANTS

2007 ◽  
Vol 14 (03) ◽  
pp. 275-282 ◽  
Author(s):  
A. SRIVIDYA ◽  
H. N. SURESH
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Decision Making Process ◽  
Decision Criteria ◽  
Analytic Hierarchy ◽  
Qualitative And Quantitative ◽  
Prioritization Process ◽  
Maintenance Activities ◽  
Hierarchy Process ◽  
Pair Wise Comparison

The Analytic Hierarchy Process (AHP) is a powerful and flexible decision making process to help people set priorities and make the best decision when both qualitative and quantitative aspects are to be considered. In this paper, a procedure of prioritizing the outlet feeders under multiple criteria using Saaty's priority theory is presented. In priority theory, weights are assigned to the decision criteria via pair wise comparison of criteria. Seven outlet feeders (alternatives) and three decision criteria have been considered and the prioritization process is illustrated with an example case.

scholarly journals Municipal Waste Management Strategy Review and Waste-to-Energy Potentials in New Zealand

2018 ◽  
Vol 10 (9) ◽  
pp. 3114 ◽  
Author(s):  
Jean-François Perrot ◽  
Alison Subiantoro
Keyword(s):  
New Zealand ◽  
Anaerobic Digestion ◽  
Waste Management ◽  
Management Strategy ◽  
Production Efficiency ◽  
Waste Treatment ◽  
Municipal Waste ◽  
Waste To Energy ◽  
Municipal Waste Management ◽  
Waste Energy

Municipal waste management and Waste-to-Energy (WtE) potentials in New Zealand are discussed. The existing main waste management strategy of New Zealand is to reduce, reuse and recycle waste. Most of the remaining waste is currently disposed of in landfills. WtE options were explored in this study as a more sustainable waste treatment alternative in the country, while making use of the annual 30.8 petajoule of available waste energy in New Zealand. Four WtE technology options were discussed and compared, namely incineration, anaerobic digestion, gasification and pyrolysis. The aspects in comparison were air pollution, cost, side products, capacity, commercial maturity, energy efficiency and type of waste treated. Special emphasis was given to environment-friendliness and cost. From the comparison, it was found that anaerobic digestion seems to be the most attractive solution for the country as it is environment-friendly, economical and the concept is consistent with New Zealand’s existing waste management strategy. The major limitations of anaerobic digestion are its low energy production efficiency and its limited waste treatment capacity. Hence, an effective national waste reduction and recycling strategy is crucial for the success of this waste management option.

Procurement of Emerging Waste-to-Energy Technologies

2010 ◽  
Author(s):  
Teno A. West
Keyword(s):  
Waste Management ◽  
Solid Waste ◽  
Solid Waste Management ◽  
Waste To Energy ◽  
Private Company ◽  
Procurement Process ◽  
Energy Technologies ◽  
Waste Separation ◽  
Conversion Technologies ◽  
The City

The City of Taunton, MA (City) has undertaken a competitive procurement process to consider proposals for a private company to develop, design, permit, finance, construct and operate a Solid Waste Management Facility (SWMF), which may be sized up to 1800 tons per day (TPD), to serve both the City’s and region’s needs for long term solid waste management. A comprehensive Request for Qualifications and Proposals (RFQP) for the SWMF was issued in June 2008. The City initiated the procurement process because its current landfill is scheduled to reach capacity in 2013. The procurement process focused on conversion technologies capable of recovering materials and producing electricity or fuels, and maximizing diversion of waste from landfilling. Technologies considered included both traditional and emerging technologies; e.g., composting, co-composting, thermal gasification, aerobic and anaerobic digestion, hydrolysis and mechanical means of waste separation into useful products. Landfilling and traditional waste-to-energy technologies were not considered.

scholarly journals A Multi-Criteria Decision Analysis for Selecting Waste Composting Technology in Makassar, Indonesia

2020 ◽  
Vol 55 (4) ◽  
Author(s):  
Sattar Yunus ◽  
Ramdiana Muis ◽  
Nani Anggraini ◽  
Fitri Ariani ◽  
Zulkifli
Keyword(s):  
Waste Management ◽  
Analytical Hierarchy Process ◽  
Coastal Area ◽  
Disposal Site ◽  
Land Access ◽  
The Government ◽  
Social Environmental ◽  
Narrow Road ◽  
Hierarchy Process ◽  
The City

The city of Makassar is in a coastal area. Cambayya village in Makassar is densely populated and has complex waste problems. Limited land access and narrow road access make it difficult to transport waste. People’s habit of throwing garbage into the sea leads to the accumulation of garbage on the coast of Cambayya and causes various forms of environmental pollution. A form of waste management that uses composting methods is needed to handle organic waste. This study aims to find an alternative piece of composting technology to handle waste coastal area conditions. This study uses qualitative methods, namely Analytical Hierarchy Process which is descriptive, refers to data and utilizes theory as a support. The sample is chosen using the purposive sampling method. Furthermore, the analytical hierarchy process approach and a comparison matrix involving four criteria are used, namely, economic, social, environmental and technical criteria. Thirteen sub-criteria are also used. Stakeholders from the government, community, and academia are interviewed, and direct observation and documentation (evidence in data collection during interviews) are used. This study found that communal composting technology is the most appropriate type of composting for coastal areas such as Cambayya, Makassar, because the amount of waste processed is higher than other technologies such as individual and hallway composter. This reduces the amount of waste disposed at the final waste disposal site, transforming community waste management habits, saving time, increasing the community’s income from the sale of compost.

scholarly journals Turning waste into resources and resources into waste: Centralised waste-to-energy nexuses and alternative modes of nexusing in Hanoi

Urban Studies ◽  
2018 ◽  
Vol 56 (11) ◽  
pp. 2315-2332 ◽  
Author(s):  
Sophie Schramm ◽  
Nguyen Thi Thanh Mai
Keyword(s):  
Urban Planning ◽  
Waste Management ◽  
Resource Efficiency ◽  
Policy Implications ◽  
Waste To Energy ◽  
Colonial Era ◽  
Infrastructure Systems ◽  
Urban Rural ◽  
The City ◽  
Energy From Waste

Modern infrastructure systems serve to separate urban flows of water, sewage, waste and energy. However, ideas concerning the combination of these flows to achieve resource efficiency have shaped Hanoi’s urban planning since the colonial era. Today, dominant visions of the generation of energy from waste have led to a redefinition of what is ‘waste’ that largely ignores ‘alternative modes of nexusing’, established industries of recycling operating across the city. These industries are intertwined with and overlap provincial waste management and perpetually exist beyond state-led planning and urban–rural boundaries. The case of Hanoi reveals the exclusionary and disruptive potential of predominant visions of the urban nexus, as socio-managerial conceptions obscure and potentially displace alternative modes of nexusing. We argue that opening the view to alternative modes of nexusing as part of heterogeneous infrastructures not only challenges conventional analyses of the urban nexus that exclude marginalised practices and people, but also has important policy implications for waste management and recycling in Hanoi.

Potential for the First WTE Facility in Mumbai (Bombay) India

2008 ◽  
Author(s):  
Perinaz Bhada ◽  
Nickolas J. Themelis
Keyword(s):  
Waste Management ◽  
Solid Waste ◽  
Traffic Congestion ◽  
Fossil Fuels ◽  
Solid Waste Management ◽  
Collection Efficiency ◽  
Solid Wastes ◽  
Waste To Energy ◽  
Waste Dumps ◽  
The City

The city of Mumbai (Bombay), India is facing a solid waste management crisis. The infrastructure has been unable to keep pace with economic development and population growth, resulting in insufficient collection of municipal solid waste (MSW) and over-burdened dumps. Improper disposal of solid wastes over several decades and open burning of garbage have led to serious environmental pollution and health problems. This study examined the solid waste management process in Mumbai and the potential for implementation of waste-to-energy facilities. Mumbai’s average per capita waste generation rate is 0.18 tonnes per person. Although the reported collection efficiency of MSW is 90%, almost half of the city’s 12 million people live in slums, some of which do not have access to solid waste services. The most pressing problem is the acute shortage of space for landfilling. When the present waste dumps were constructed they were at the outskirts of the city, but now they are surrounded by housing colonies, thus exposing millions of people to daily inconveniences such as odors, traffic congestion, and to more serious problems associated with air, land, and water pollution and the spread of diseases from rodents and mosquitoes. Mumbai is the financial center of India and has the highest potential for energy generation from the controlled combustion of solid wastes. The lower heating value of MSW is estimated in this study to be 9 MJ/kg, which is slightly lower than the average MSW combusted in the E.U. (10 MJ/kg). The land for the first WTE in Mumbai would be provided by the City and there is a market for the electricity generated by the WTE facility. The main problem to overcome is the source of capital since the present “tipping fees” are very low and inadequate to make the operation profitable and thus attract private investors. Therefore, the only hope is for the local government and one or more philanthropists in Mumbai to team up in financing the first WTE in India as a beacon that improves living conditions in Mumbai, reduces the City’s dependence on the import of fossil fuels, and lights the way for other cities in India to follow.

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