Abstract
Waste management is becoming one of the most challenging tasks for developing countries in order to ensure good human health, as well as a healthy environment. Rajshahi City Corporation (RCC) is one of the 12 city corporations in Bangladesh. Various environmental and human health problems have arisen due to a lack of proper knowledge of waste management. Thus, the aim of this work is to illustrate the present status of MSW generation and management in Rajshahi City Corporation, Bangladesh. Fifty households were selected throughout RCC for waste collection, which represent approximately all types of households in RCC. From the qualitative and quantitative analysis, it is estimated that the approximate MSW generation in RCC is 358.19 t/d (tons/day) at an approximate rate of 0.4214 kg/person/d. Calorific values of the wastes have also been determined using the ultimate analysis results of the MSW. A higher calorific value of the dry MSW has been calculated as 14.9 MJ/kg. Moisture content of the MSW has been found to be 48.28%. It is also estimated that the possible power generation (steam energy to electrical power) from MSW generated in RCC is 159.40 MWh/d. Lastly, future scopes of MSW management and different waste management measures that need to be taken are illustrated. Waste-to-energy (WTE) conversion has been given priority and anaerobic digestion (AD) has been found to be an interesting prospect in this sector. Techno-economic analysis of the AD has been conducted. Energy potential from the proposed plant has been calculated as 3.85 MW and the payback period has been found to be 4.9 years. It has been observed that employing AD on a large scale can not only reduce the waste, but also meet a large portion of the energy demand of this city.
Highlights
Municipal solid waste (MSW) management is one of the most crucial challenges for developing and under-developed countries
The approximate total waste generation in Rajshahi City Corporation (RCC) is calculated as 358.19 t/d, which is approximately equal to the data presented by earlier studies [7,9]
Quality and calorific value of the RCC waste, proper treatment of MSW is recommended for the following three purposes: best waste management, metallic product recovery and WTE production
Summary
Municipal solid waste (MSW) management is one of the most crucial challenges for developing and under-developed countries. Developed countries produce more waste compared to that of the others. They have good management systems as they invest a large portion of money in this management sector. Bangladesh, MSW management is a major problem, as it involves a lot of expenditure. MSW generation increases with population growth and urbanization. It is becoming more challenging, as more land is needed to dispose the waste [1]. A rapid increase in MSW can cause high environmental pollution and various hazards to the inhabitants. MSW management is a technical problem, but rather different political, legal, environmental and economic factors influence the system [2].
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
