中国污水污泥厌氧消化温室气体减排量的测定
Determination of greenhouse gas emission reductions from sewage sludge anaerobic digestion in China.
作者信息
Liu H-T, Kong X-J, Zheng G-D, Chen C-C
机构信息
Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China E-mail:
Center of Science and Technology of Construction, Ministry of Housing and Urban-Rural Development of China, Beijing 100835, China.
出版信息
Water Sci Technol. 2016;73(1):137-43. doi: 10.2166/wst.2015.472.
Sewage sludge is a considerable source of greenhouse gas (GHG) emission in the field of organic solid waste treatment and disposal. In this case study, total GHG emissions from sludge anaerobic digestion, including direct and indirect emissions as well as replaceable emission reduction due to biogas being reused instead of natural gas, were quantified respectively. The results indicated that no GHG generation needed to be considered during the anaerobic digestion process. Indirect emissions were mainly from electricity and fossil fuel consumption on-site and sludge transportation. Overall, the total GHG emission owing to relative subtraction from anaerobic digestion rather than landfill, and replaceable GHG reduction caused by reuse of its product of biogas, were quantified to be 0.7214 (northern China) or 0.7384 (southern China) MgCO2 MgWS(-1) (wet sludge).
在有机固体废物处理与处置领域，污水污泥是温室气体（GHG）排放的一个重要来源。在本案例研究中，分别对污泥厌氧消化产生的温室气体总排放量进行了量化，包括直接排放、间接排放以及由于沼气被再利用而非使用天然气所带来的可替代减排量。结果表明，厌氧消化过程中无需考虑温室气体的产生。间接排放主要来自现场电力和化石燃料消耗以及污泥运输。总体而言，由于厌氧消化相对于填埋的相对减排以及其沼气产品再利用所导致的可替代温室气体减排量，经量化后分别为0.7214（中国北方）或0.7384（中国南方）MgCO₂ MgWS⁻¹（湿污泥）。
Zotero 插件