Biological phosphorous removal from wastewater using multiple recombinable basins
US4948510A · kind A · utility
26Cited by
14References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 12, 1989 |
| Grant date | Aug 14, 1990 |
| Priority date | — |
| Expiry date | Oct 12, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/906
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A process for treating wastewater to biologically remove phosphorous as well as lowering ammonia, TSS and BOD levels is provided. The process employs a plurality of basins which may be individually controlled to achieve anaerobic, anoxic or aerobic conditions. The basins are reconfigurable in that the flow of influent to a basin, transfer of mixed liquor between basins and effluent discharge from a basin can be varied to create a treatment cycle which has features of both continuous and batch processes while minimizing recycle rates and hydraulic level changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.