Anaerobic wastewater treatment system and method
US7520990B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2007 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Feb 27, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E50/30
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An anaerobic wastewater treatment system includes a recycle tank, a bioreactor tank and a bioselector for recapturing anaerobic microbial consortia particles escaping from the bioreactor tank and returning them to the bioreactor tank. The bioreactor tank receives recycled wastewater feed from a recycle tank and discharges via an overflow outlet treated wastewater and microbial consortia particles to a bioselector. The bioselector is adapted to separate entrained microbial consortia particles and return a feed to the bioreactor tank which including some of the treated wastewater received from the bioreactor tank and the microbial consortia particles received from the bioreactor tank. The bioselector provides a recycle feed to the recycle tank. Overflow from the bioselector provides an effluent of treated wastewater leaving the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.