Trihalomethane precursor removal using ion exchange emulsions
US4537683A · kind A · utility
25Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1983 |
| Grant date | Aug 27, 1985 |
| Priority date | — |
| Expiry date | Nov 18, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/908
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
To avoid formation of toxic trihalomethanes in drinking waters disinfected with halogens, these waters are treated with fine-particle-size ion exchange resin particles, optionally in the presence of a metal salt coagulant, to remove the trihalomethane precursors prior to halogenation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.