Method for treating organic waste by methane fermentation
US5100553A · kind A · utility
31Cited by
6References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 20, 1990 |
| Grant date | Mar 31, 1992 |
| Priority date | — |
| Expiry date | Aug 20, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E50/30
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Proliferation activity of methane bacteria in organic waste water can be improved by maintaining the ratio of the amounts of nickel, iron and cobalt contained in the waste water to the BOD thereof to not lower than certain values, and various organic waste waters, such as waste liquor formed during the production of beer and the like, can be treated in a high BOD removal ratio of not lower than 90% while maintaining a high BOD load of not lower than 10 kg/m.sup.3 .multidot.day.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.