Abstract
The eco-system of combined multistage pond (Anaerobic pond, facultative pond, aerobic pond and winter lagoon)-wetland was applied to carry out the enhanced treatment and utilization of petrochemical wastewater, with treatment capacity of 10,0000 m3/d; and in cold region, the combined eco-system showed good treating efficiency of petrochemical wastewater, the average values of COD, BOD5, TN, NH4+-N, TP and patron matter of effluent water from last treated unit reed wetland could reach 75.08, 7.51, 10.63, 5.12, 0.5 mg/L and oil 4.63 mg/L respectively. In plants growing seasons (May to October), the system's removal efficiency of each pollutant was better than the plants un-growing seasons; meanwhile, the storage pond of the system could achieve zero discharge of the wastewater in cold seasons (November to next May), which could guarantee the whole year's treating efficiency.
| Original language | English |
|---|---|
| Pages (from-to) | 27-31 |
| Number of pages | 5 |
| Journal | Zhongguo Huanjing Kexue/China Environmental Science |
| Volume | 26 |
| Issue number | SUPPL. |
| State | Published - Jul 2006 |
| Externally published | Yes |
Keywords
- Eco-system
- Multi-stage pond
- Petrochemical wastewater
- Reed wetland
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