Greenhouse gas emissions from municipal wastewater treatment facilities in China from 2006 to 2019

Wastewater treatment plants (WWTPs) alleviate water pollution but also induce resource consumption and environmental impacts especially greenhouse gas (GHG) emissions. Mitigating GHG emissions of WWTPs can contribute to achieving carbon neutrality in China. But there is still a lack of a high-resolution and time-series GHG emission inventories of WWTPs in China. In this study, we construct a firm-level emission inventory of WWTPs for CH 4 , N 2 O and CO 2 emissions from different wastewater treatment processes, energy consumption and effluent discharge for the time-period from 2006 to 2019. We aim to develop a transparent, verifiable and comparable WWTP GHG emission inventory to support GHG mitigation of WWTPs in China. Measurement(s) methane, nitrous oxide and carbon dioxide emissions from municipal wastewater treatment facilities Technology Type(s) computational modeling technique Factor Type(s) influent and effluent chemical oxygen demand (COD) mass • influent and effluent total nitrogen (TN) mass • removed COD • electricity consumption • emisison factors • wastewater treatment technology Sample Characteristic - Organism None Sample Characteristic - Environment wastewater treatment facilities • physical treatment process • chemical treatment process • physicochemical treatment process • conventional activated sludge • enhanced activated sludge process • biofilm treatment process • anaerobic biological treatment process • stabilization pond, constructed wetland and land treatment • membrane bioreactor Sample Characteristic - Location China