Table 1 The GHG emissions accounting scope during the wastewater collection, treatment and discharge stages.
From: Analysis of greenhouse gas emissions from urban wastewater treatment during recent years in China
Wastewater treatment stages | Emission ways | GHG | |||
|---|---|---|---|---|---|
CH4 | N2O | CO2 | |||
Wastewater treatment | Collection and discharge | Direct | √ | √ | √ |
Domestic wastewater treatment | Direct | √ | √★ | √ | |
Industry wastewater treatment | Direct | √ | √★ | √ | |
Power and chemical products consumption | Indirect | √ | |||
