期刊
WASTE MANAGEMENT
卷 84, 期 -, 页码 173-181出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.wasman.2018.11.040
关键词
Municipal solid waste; Organic waste; Greenhouse gas emissions; Global warming potential; Life cycle assessment; Hermetic illucens
资金
- Eco-Innovera program and its project SPROUT - Federal Office for the Environment (FOEN, Switzerland)
- Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning (FORMAS, Sweden)
- Pacovis AG (Switzerland)
- FORWARD project - Swiss Secretariat of Economic Affairs (SECO, Switzerland)
- Swiss Agency for Development and Cooperation (SDC, Switzerland)
Cities of low and middle-income countries face severe challenges in managing the increasing amount of waste produced, especially the organic fraction. Black Soldier Fly (BSF) biowaste treatment is an attractive treatment option as it offers a solution for waste management while also providing a protein source to help alleviate the rising global demand for animal feed. However, to-date very little information is available on how this technology performs with regard to direct greenhouse gas (GHG) emissions and global warming potential (GWP). This paper presents a study that uses a life cycle assessment (LCA) approach to assess the GWP of a BSF waste treatment facility in the case of Indonesia and compares it with respective values for an open wind-row composting facility. Direct CH4 and N2O samples were extracted from BSF treatment units and analyzed by gas chromatography. Results show that direct CO(2)eq emissions are 47 times lower the emissions from composting. Regarding the overall GWP, the LCA shows that composting has double the GWP of BSF treatment facility based on the functional unit of 1 ton of biowaste (wet weight). The main GWP contribution from a BSF facility are from: (1) residue post-composting (69%) and (2) electricity needs and source (up to 55%). Fishmeal production substitution by BSF larvae meal can reduce significantly the GWP (up to 30%). Based on this study, we conclude that BSF biowaste treatment offers an environmentally relevant alternative with very low direct GHG emissions and potentially high GWP reduction. Further research should improve residue post-treatment. (C) 2018 The Authors. Published by Elsevier Ltd.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据