一氧化二氮
温室气体
环境科学
厌氧消化
甲烷
碳足迹
污水处理
废物管理
环境工程
污水污泥
无组织排放
无氧运动
废水
活性污泥
污水
化学
工程类
生态学
有机化学
生物
生理学
作者
Vanessa Parravicini,K. Svardal,Jörg Krampe
标识
DOI:10.1016/j.egypro.2016.10.067
摘要
Direct and indirect greenhouse gases emissions of two model municipal WWTPs were estimated using carbon footprint analyses. One WWTP was designed with anaerobic digestion, the other one with simultaneous aerobic stabilization of sewage sludge. Emission factors were derived from literature values. For direct nitrous oxide emissions, a new estimation model based on measurements at eight Austrian WWTPs was applied. Results show that the direct nitrous oxide emission from the activated sludge tanks dominates the carbon footprint of WWTPs with a moderate nitrogen removal. Anaerobic digesters and anaerobic sludge storage tanks can also become a relevant source of direct methane emissions.
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