Evaluating greenhouse gas impacts of organic waste management options using life cycle assessment

Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA
Dung KongStephen R Maguin

Abstract

Efforts to divert organics away from landfills are viewed by many as an important measure to significantly reduce the climate change impacts of municipal solid waste management. However, the actual greenhouse gas (GHG) impacts of organics diversion from landfills have yet to be thoroughly evaluated and whether such a diversion provides significant environmental benefits in terms of GHG impacts must be answered. This study, using California-specific information, aimed to analyse the GHG impacts of organics diversion through a life-cycle assessment (LCA). This LCA considered all aspects of organics management including transportation, materials handling, GHG emissions, landfill gas capture/utilization, energy impacts, and carbon sequestration. The LCA study evaluated overall GHG impacts of landfilling, and alternative management options such as composting and anaerobic digestion for diverted organic waste. The LCA analysis resulted in net GHG reductions of 0.093, 0.048, 0.065 and 0.073 tonnes carbon equivalent per tonne organic waste for landfilling, windrow composting, aerated static pile composting, and anaerobic digestion, respectively. This study confirms that all three options for organics management result in net reductions...Continue Reading

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Citations

Jun 9, 2016·Journal of Environmental Management·Cassendra Phun-Chien BongFujiwara Takeshi
Oct 29, 2013·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Jun DongMingjiang Ni
Jun 21, 2019·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Hani Abu QdaisAbdallah Nassour
Oct 19, 2019·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Victor Hugo Argentino de Morais Vieira, Dácio Roberto Matheus

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