Study on Greenhouse Gas Emission Accounting and Emission Reduction Path in Wastewater Treatment Plants
This paper analyzed the sources of greenhouse gas(GHG)emissions from wastewater treatment plants(WWTPs),as well as the characteristics and shortcomings of existing accounting methods,and proposed an accounting method for GHG emissions from WWTPs.The accounting scope included the direct emis-sions of methane(CH4)and nitrous oxide(N2O)in wastewater treatment process,and the indirect emissions of energy consumption and chemical consumption.Taking a typical WWTP in Jiangsu Province as a example,the accounting results showed that power consumption was the main source of CO2 emissions from the WWTP(ac-counting for 53.85％),while CH4 accounted for 28.96％.Therefore,it proposed to reduce GHG emissions from the aspects of energy saving,carbon reduction,consumption reduction,efficiency improvement and process optimi-zation.It suggested to formulate unified accounting technical guidelines as soon as possible,and carry out pi-lot monitoring of GHGs emissions in key WWTPs.
万方数据
维普
