Methods for generating residual disinfectants during the ozonization of water
US5264136A · kind A · utility
46Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1992 |
| Grant date | Nov 23, 1993 |
| Priority date | — |
| Expiry date | Oct 30, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/766
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Methods and compositions for generating stable, residual disinfectants during the ozonization of water, comprising the carrying out the ozonization of water in the presence of bromide ions and an effective amount of a hypobromite ion scavenger possessing imide and/or amide functionality that preferentially converts hypobromite ions to biocidal, ozone-stable derivatives thereof to thereby suppress the catalytic decomposition reaction of ozone with hypobromite ions. The methods and compositions of the present invention are useful for water disinfection and algae control, generally.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.