An approach towards designing a new sanitary landfill system for treatment of emissions from decomposition in urban gas network

Subject Areas : environmental management

mohammad javad zoqi ¹ ( Assistant Prof., Department of Engineering, University of Birjand, Birjand, Iran. * (Corresponding Author) )
Mohammad Reza Doosti ² ( Associate Prof., Department of Engineering, University of Birjand, Birjand, Iran. )

Received: 2008-08-31 Accepted : 2009-10-19 Published : 2018-09-23

Keywords: New landfill system, cheaper treatment, LFG purification, CO2 removal,

Abstract :

Background and Objective: The main components of landfill biogas are methane and carbon dioxide, both of which are greenhouse gases. Methane is a greenhouse gas with global warming potential of 21 times greater compared to CO2. In this paper, a new method is proposed for landfilling to reduce landfill gas emissions and to prevent entry of air into the landfill. Method: This paper presents a new landfill design and system for air ingress prevention and landfill gas containment. In addition, in this paper Aspen Hysyssoftware was used for the dynamic simulation of separation of CO2 from landfill gas by adsorption process in the ethanolamine solution. Findings: The new system proffers more control over the biogas extraction and processes of anaerobic digestion than conventional landfills. In the new system, the landfill gas purification process becomes cheaper due to reduction of air ingress. Conclusion: The new system can be applied on tipycal landfills. Using this new system, biogas purification and exploitation will become economical in more landfills, and the increased use of biogas will result in greater use of renewable energy sources and reduction of greenhouse gas emissions.

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