Method to remove biguanide from an aqueous source
US5824239A · kind A · utility
4Cited by
1References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 14, 1997 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | Aug 14, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/42
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method for removing biguanide from aqueous sources, such as swimming pools, is disclosed. The method includes the steps of bringing at least one polymeric metaphosphate into contact with the aqueous source in a sufficient concentration to form particles containing the biguanide. The particles containing at least a portion of the biguanide can then be removed by various means, including filtration or vacuuming.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.