Method for treating mixed wastewater from pharmaceutical chemical industry park
US7988857B2 · kind B2 · utility
0Cited by
5References
12Claims
0Family size
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Key dates
| Filing date | Sep 30, 2010 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Sep 30, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/10
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method for treating mixed wastewater from pharmaceutical chemical industry parks including introducing mixed wastewater into a regulation tank for regulation of water flow and water quality, and then into a hydrolysis tank having a hanged filler and employing upflow water distribution, into an anaerobic tank employing upflow water distribution, into a moving bed biofilm reactor having a suspended filler and an aeration device at the bottom thereof, into a biological aerated filter including a ceramic filler, and finally treating using coagulating precipitation process. The final effluent has less than 100 mg/L COD.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.