Treatment scale

16800 t/day

Treatment level

BOD

(mg/L)

COD

(mg/L)

Cl

(mg/L)

Phenol

(mg/L)

Petroleum

(mg/L)

pH

Sulfide

(mg/L)

Before treatment

114.75

136

11240

8.37

37.6

8.32

15.43

After treatment

9.68

33

11240

0.12

3.6

6-9

0.06

Investment

Total investment: 5 million Yuan; average investment: 300 Yuan/t water day

Operation cost

0.12 Yuan/t day

Prize winning

Chinese petroleum chemistry company examination; International advanced technique; Progress reward of Chinese petroleum chemistry company (1992); Progress reward of national environment protection agency (1993); National environment protection agency recommend project, Chinese patent