Patent · US Expired

Method and device for the treatment of effluent, sludge and organic substrates

US7056437B2 · kind B2 · utility

6Cited by

9References

22Claims

0Family size

Assignee

EMU Unterwasserpumpen GmbH · DE

Inventors

Andreas Schmid · Duisburg, DE
Wolfgang Geier · Hof, DE

Key dates

Filing date	Nov 8, 2002
Grant date	Jun 6, 2006
Priority date	—
Expiry date	Feb 9, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02W10/10
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

The invention concerns a method of treating filamentous and flocculating microorganism-bearing effluent, sludge or organic substrates used in biogas installations, for reducing or avoiding the formation of bulking sludge, floating sludge and/or foam, wherein the effluent, sludge or organic substrates is or are guided in a flow passage and in the flow passage subjected to a shear loading which is sufficient to reduce the relative ratio of the number of filamentous microorganisms in relation to flocculating microorganisms. The invention further concerns an apparatus for carrying out the method.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.