Method for improving bottom and water quality in water areas and a set of agents used in the method
US5387343A · kind A · utility
4Cited by
8References
5Claims
0Family size
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Key dates
| Filing date | Jul 26, 1993 |
| Grant date | Feb 7, 1995 |
| Priority date | — |
| Expiry date | Jul 26, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/10
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method for improving the quality of bottom and water in water areas where sludge is deposited on the bottom. In a sample water area, lime, activated sludge and anaerobic sludge, diatomaceous earth or zeolite, and photosynthesis bacteria solution are spread. Before spreading, the photosynthesis bacteria solution is infiltrated into at least either one of the activated sludge and anaerobic sludge, and the diatomaceous earth or zeolite. For the above method, four kinds of the above agents are prepared in a predetermined proportion, and they are separately packed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.