RESEARCH PROGRESS ON METHANE GENERATION AND EMISSION FROM URBAN SEWAGE SYSTEMS
The sewage treatment industry is one of the top ten greenhouse gas emission industries in the world.In recent years,the emission of methane in urban sewage systems has received widespread attention.This paper summarizes the current status of methane emissions in urban sewage systems,including the monitoring methods and emission laws of soluble and fugitive methane,summarizes the methane generation and emission mechanisms in urban sewage systems,and discusses the different influencing factors in sewage pipe networks and sewage treatment plants.It provides the basis for the monitoring of methane in urban sewage systems,the establishment of a methane emission evaluation system,the proposal of methane control technology,and even the low-carbon design and management of urban sewage systems in the future.
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