Patent · US Expired

Sulphate-reducing bacterial strains and their use in the decontamination of water contaminated with sulphuric acid, metals and radioactive substances

US6080572A · kind A · utility

3Cited by

2References

12Claims

0Family size

Assignee

UFZ-Umweltforschungs Zentrum Leipzig-Halle GmbH · DE

Inventors

Barbara Hard · Leipzig, DE
Wolfgang Babel · Linz, DE
Silke Friedrich · Leipzig, DE

Key dates

Filing date	Mar 27, 1998
Grant date	Jun 27, 2000
Priority date	—
Expiry date	Mar 27, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E50/30
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

The present invention relates to Gram-negative sulfate-reducing bacteria strains which grow under anaerobic conditions at pH values between 3.9 and 9.5 and temperatures between 3.degree. C. and 45.degree. C. and which reduce sulfate to sulfide, utilize methanol as a source of carbon and energy, do not require further carbon and energy sources in addition to methanol, and are tolerant to metals. The present invention further relates to methods of decontaminating sulfuric-acid, metal-containing and radioactively contaminated water, particularly methods of decontaminating pit and flooding water in disused uranium mines or washing water from soil refining plants.

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