An Efficient Method to Detoxify Water with UV Light and Chlorine

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Microcystins (MCs) are potent hepatotoxins associated with blooms of cyanobacteria. Conventional water treatment technologies ineffectively remove, degrade, and detoxify these MC compounds. Currently, there does not exist an effective, macro solution to these impurities. At a microscale, methods exist to slightly decontaminate and detoxify smaller water supplies contaminated with MCs via UV radiation and chlorination. However, more modern and effective techniques are necessary to increase water purity and the efficiency of large scale water treatment facilities.

Research at Purdue University has led to the discovery of a newer, effective method of degradation of microsystins. This technique combines the decontamination treatment of chlorination and UV radiation at levels beyond the range of operating conditions of a normal water treatment facility. Experimentation found that the extent of MC degradation increased monotonically with increased chlorine and even further when combined with UV radiation. In addition, MC detoxification became more efficient in alkaline solutions rather than neutral or acidic solutions. Processes for MC removal hold significant weight for the future of drinking water purity.

-Increased detoxification
-Presents solution to unsolved problem

Potential Applications:
-Water treatment facilities
-Further research
Aug 25, 2017
Utility Patent
United States
May 26, 2020

Aug 26, 2016
United States
Purdue Office of Technology Commercialization
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