Methane and nitrous oxide emissions from municipal wastewater treatment plants in China: A plant-level and technology-specific study.

ABSTRACT: Wastewater treatment is an important source of greenhouse gases (GHGs). Yet large uncertainties remain in the quantification of GHG emissions from municipal wastewater treatment plants (MWWTPs) in China. A high-resolution and technology-specific emission inventory is still lacking to support mitigation strategies of MWWTPs. Here we develop a plant-level and technology-based MWWTP emission inventory for China covering 8703 plants and 19 treatment technology categories by compiling and harmonizing the most up-to-date facility-level databases. China's methane (CH₄) and nitrous oxide (N₂O) emissions from MWWTPs in 2020 are estimated to be 150.6 Gg and 22.0 Gg, respectively, with the uncertainty range of -30% to 37% and -30% to 26% at 95% confidence interval. We find an em

SUBMITTER: Li H 

PROVIDER: S-EPMC10714208 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature