Greenhouse effect reduction by recovering energy from waste landfills in Pakistan

Date

2015-04-01

Author

Zuberi, M. Jibran S.
Ali, Shazia F.

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Landfills all around the world are one of the major sources that contribute towards global warming and climate change. Although landfilling should be prioritized last in the waste management hierarchy due to highest greenhouse gas emissions as compared to other waste management systems it is still very common around the world. In this study, methane emissions are estimated by applying First Order Decay model to landfills in Pakistan over the latest data available by Pakistan Environmental Protection Agency. Results demonstrate that nearly 14.18 Gg of methane is emitted from the landfills in Pakistan each year. By combusting this methane in the form of biogas collected from the landfills as a waste management scheme we can reduce greenhouse effect up to similar to 88%. Same percentage is observed when we apply the similar analysis over the potentially improved practice. Also, Pakistan is facing severe economic crises due to continuous increasing gap between energy demand and supply. Demand is increasing exponentially while supply is observed to remain constant over the last few years due to frozen capacity in spite of having significant renewable/alternate energy resources. Current electricity shortfall has reached up to 6000 MW. Present operational landfills in Pakistan can only contribute up to similar to 0.1% to cater the total deficit which does not make any significant difference but if 75% of the total waste generated today is collected and 50% of it landfilled then Pakistan has the potential to produce similar to 83.17 MW of power that can contribute up to 1.4% to overcome the current power shortage. The outcomes of this paper may also be applicable to other developing countries having similar resources.

Subject Keywords

Renewable energy, Landfills, Biogas, Greenhouse effect, Pakistan

URI

https://hdl.handle.net/11511/65336

Collections

Engineering, Technical Report

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Citation Formats

M. J. S. Zuberi and S. F. Ali, “Greenhouse effect reduction by recovering energy from waste landfills in Pakistan,” 2015. Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65336.