Analysis of the potential of landfill gas as an alternative for electrical energy source

Edi Munawar,Lukman Hakim,Yunardi Yunardi,Adinda Puspa Hayati,Nikita Emalya,A Orbecido,V Bungay,A Beltran,K Aviso

doi:10.1051/matecconf/201926806004

Edi Munawar, Lukman Hakim + Show 7 more

Open Access

https://doi.org/10.1051/matecconf/201926806004

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Abstract

Municipal solid waste (MSW) is generated from human activities, where most of them end up at the landfill. The landfill gas produced from the degradation of organic matter in the MSW landfill contains methane can be used as the energy source. Therefore, the objective of this research is to analyze the potential of landfill gas as an alternative for energy source. Two Landfill Simulator Reactor (LSRs) made of high density polyethylene (HDPE) pipe has 50 cm outside diameter and 150 cm of height were operated under natural condition. The first LSR was operated without leachate recirculation (A), while the other one was operated with leachate recirculation (B). Results of this research found the highest methane concentration from LSR A was about 53% and 41.8% from LSR B. This finding was applied to estimate the landfill gas production for electricity generation in Cot Padang Nila landfill. The potential electrical energy that could be produced from Cot Padang Nila landfill is 203 MWh/year if it is operated using LSR A mode, and 161 MWh/year when operated in accordance to LSR B mode. This amounts of energy is suitable to provide electricity for 53-67 households in the vicinity of the landfill.

Highlights

The Government of Indonesian enacted the Act 18 on Waste Management in May 2008
The highest concentration of CH4 approximately 53% and 41.8% was observed in the Landfill simulator reactor (LSR) A and the LSR B, respectively
The calculation results shows that the Cot Padang Nila Landfill would be able to produce an energy of 203 MWh/year if its operated under the LSR A mode and 161 MWh/year if its operated under LSR B mode

Summary

Introduction

The Government of Indonesian enacted the Act 18 on Waste Management in May 2008 This acts is requires the MSW management authorities to implement the integrated waste management according to the waste hierarchy, namely reduce, reuse and recycle (3Rs) [1, 2]. The landfilling of MSW should be carried out in an environmentally sound manner in order to avoid the waste management impacts on humans and the environment. The Act obliges the local governments to close the MSW landfills that operate as an open dump no later than five years after enactment of this Act. Within the same time frame, the new landfills should be construct to replace the open dump ones. The construction, operation and closure of the open dump should be carried out in accordance with the standards and regulations in force [2]

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