Table 2 Wastewater characteristic and treatment process and abatement cost of the ten industries as research objects
Industry | Average abatement cost y/t | Contaminant characteristics | Treatment | Others | ||
|---|---|---|---|---|---|---|
SS | Organic matter | Toxicity | ||||
FP | 2.06 | High, food residue | High, easily degradable | Low | Biological | – |
T | 2.28 | Cotton, wool and fiber | High, 10–80% degradable | Surfactant and dye | Physicochemical, biological, advanced oxidation | High temperature and chroma |
PP | 1.93 | Mud and fiber | High, 10–50% degradable | Resin acid, unsaturated fatty acid | Physicochemical, biological, advanced oxidation | – |
PCN | 5.6 | Silt and clay | High, hardly biodegradable, high petroleum | Heavy metals | Physicochemical, biological, chemical flocculation, advanced oxidation | High temperature and strong acidity or basicity |
CP | 3.64 | – | High, hardly biodegradable | High, heavy metals, cyanide, phenol | Physicochemical, biological, electrochemical | High temperature |
PI | 4.07 | High, microbial thallus, gruff | High, hardly biodegradable | Antibiotics | Physicochemical, biological, flocculation | – |
MP | 6.85 | High, inorganic | Low | Heavy metal | Physicochemical, flocculation, sedimentation | – |
GPM | 6.2 | – | High, hardly biodegradable | Heavy metal, cyanide | physical, chemical, advanced oxidation | – |
TE | 4.27 | – | High, hardly biodegradable, engine oil | Heavy metal | Flocculation and sedimentation, advanced oxidation | – |
EE | 4.37 | – | High, hardly biodegradable | Heavy metal, cyanide | Flocculation and sedimentation, advanced oxidation | – |