Chlorination-UV process for decomposition and detoxification of microcystin-LR
US10662100B2 · kind B2 · utility
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Key dates
| Filing date | Aug 25, 2017 |
| Grant date | May 26, 2020 |
| Priority date | — |
| Expiry date | Aug 25, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2101/30
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Provided is an ordered step-wise method for the chlorination and photodestruction of MC-LR contamination of an aqueous liquid such as a potable water supply infested with blue-green algae (cyanobacteria). It has been found possible to usefully chlorinate the water at lower chlorine:MC-LR ratios as compared to known methods and then to irradiate the water with ultraviolet radiation to photolyze the chlorinated MC-LR. The methods incorporate the prechlorination of a cyanotoxin, more advantageously a microcystin, and most advantageously MC-LR, to enhance UV-induced photodegradation of this compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.