Patent · US Expired

Process for wastewater purification

US4971698A · kind A · utility

12Cited by

4References

3Claims

0Family size

Assignee

SCHERING CORPORATION · US

Inventors

Alfred Weber · Wien, AT
Uwe Klages · Berlin, DE
Christoph Donner · Berlin, DE

Key dates

Filing date	Jan 6, 1989
Grant date	Nov 20, 1990
Priority date	—
Expiry date	Jan 6, 2009

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S210/908
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A process is disclosed for the purification of wastewaters containing biodegradable aliphatic compounds which is characterized in that these compounds are brought into contact with microorganisms capable of biodegradation immobilized by embedment in a gel-type organic polymer that does not denature the microorganisms.

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