RESEARCH PROGRESS ON MONITORING METHODS OF DIRECT CARBON EMISSIONS FROM URBAN SEWAGE COLLECTING SYSTEMS
Urban sewage collecting system plays a crucial role in transporting sewage to wastewater treatment plants,comprising key components such as septic tanks,sewer pipelines,and sewage lift stations.The existing research indicates that during operation,various units of the sewage collecting system emit greenhouse gases(GHGs)including methane(CH4),carbon dioxide(CO2),and nitrous oxide(N2O).Efficient and accurate monitoring of GHGs emissions in the sewage collecting system is essential for a comprehensive understanding of carbon emissions and informing the development of effective emission reduction measures.Based on the findings of existing research,this review synthesizes the methodologies for monitoring direct carbon emissions in urban sewage collecting systems,and offers recommendations and future directions for carbon emission monitoring,thereby contributing to the research advancement in the field of wastewater collection systems'carbon emissions.
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