Geospatially based analysis and economic feasibility evaluation of waste to energy facilities: a case study of local government areas of Anambra State of Nigeria

Author(s):  
E. C. Chukwuma ◽  
J. O. Ojediran ◽  
D. C. Anizoba ◽  
J. I. Ubah ◽  
C. P. Nwachukwu
2021 ◽  
Author(s):  
Emmanuel Chukwuma ◽  
John Ojediran ◽  
Daniel Azikiwe Anizoba ◽  
Joseph Azikiwe Ubah ◽  
Pius Nwachukwu

Abstract Access to affordable clean energy source as stipulated in UN SDG goal number 7 is important for the development and socio-economic well-being of people, the need for proper assessment of resources to achieve this goal is indisputable. The goal of this study is to assess the economic feasibility of utilizing organic fraction of Municipal Solid Wastes (MSWof) using a case study of 21 Local Government Areas (LGA) or Authority for Anambra State of Nigeria for waste to energy project. The quantity of organic fraction of MSW, energy recovery and optimum number of plants at the various LGAs was estimated. The result of the study indicates that about 198 tons maximum value of MSWof can be generated daily in Aguata LGA, with electric energy potential value of 545MW. The number of plants for the LGAs ranged from 10 to 50 and from 3 to 12 for small and medium scale plants. A large scale plant of about 50m3 can possibly be installed at all the LGAs, with a maximum of 4 plants in Idemili and Aguata LGA. The economic assessment based on Net Present Value (NPV) criteria shows poor economic feasibility for small scale plant, while NPV was positive for medium and large scale plants. The Internal Rate of Return (IRR) ranged from 0.32 to 0.94, with a general increase from small scale to large scale economic feasibility. It is suggested that the autonomy of the various LGAs in the country should serve as a major motivation in adopting bio-energy projects independently, and this study will serve as a decision toolkit in the appropriate scale to be adopted.


Author(s):  
Greg Gesell ◽  
Karl Fryklind ◽  
Brian Spott

Great interest surrounds new technologies that are being offered as alternatives to conventional combustion of waste. Developers have identified the benefits of emerging technologies over existing technologies. In the years since many of today’s existing waste-to-energy (WTE) facilities were built in the United States, the technology required to process waste has improved dramatically in both environmental and operational performance. This technical paper presents a hypothetical study comparison of a generic WTE plant with plasma-arc gasification or other gasification technology. The case study represents a greenfield facility that would process 1000 TPD of MSW in two trains of 500 TPD each. The comparison includes the following elements: 1. General physical description of the facilities; 2. Emissions performance; 3. Byproduct and waste generation; and 4. Energy production. The comparison also discusses differential capital and operating costs, but does not attempt to establish these costs or compare economic feasibility.


2014 ◽  
Vol 962-965 ◽  
pp. 2253-2257
Author(s):  
Qian Lin Zhu ◽  
Zhong Deng ◽  
Xian Xing Qin

For carbon dioxide capture and geologic storage to be deployed commercially and in a widespread manner will require well thought out economic feasibility. As one of the main coalbed methane resource reservoirs of China, Qinshui Basin is being widely technical studied about how to enhance coalbed methane recovery by CO2 injection (CO2-ECBM). In this study, an economic feasibility evaluation is presented to discuss economy to the CO2-ECBM, and how to choose the best exploit scheme. Two exploiting schemes were compared. The evaluation results show the exploit scheme that the CO2 storage potential is designed 1.5 Mt/year, the well configuration pattern is 5-spot 160 ac, and the exploited area is 194 km2 is a better choice. The sensitivity analysis results show the profit is the most sensitive parameter, which reminds us should strictly control this uncertainty. The CO2-ECBM project has a strong robustness, and the Qinshui Basin has a further CO2-ECBM prospect from economical view.


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