Table 2 The wastewater treatment evaluation index system for enterprises
The first level | The second level (criteria) | The third level (alternatives) |
|---|---|---|
T: Wastewater treatment evaluation for enterprises in industrial park | U1: Environmental protection benefit | u11: COD effluent concentration |
u12: NH3-N effluent concentration | ||
u13: TP effluent concentration | ||
u14: TN effluent concentration | ||
u15: Effluent colority | ||
U2: Resource utilization benefit | u21: Unit product water consumption | |
u22: Unit product wastewater discharge | ||
u23: Wastewater treatment cost per ton | ||
u24: Operating load of sewage treatment | ||
U3: Recycling benefit | u31: Recycling rate of industrial water | |
u32: Reuse rate of tail water | ||
u33: Stability compliance rate of wastewater treatment |