disinfection

Researchers have achieved a breakthrough in improving the efficiency of an electrochemical reaction that produces hydrogen peroxide -- a vital chemical for industrial applications such as disinfection, bleaching, and sewage treatment.

While authorities said the health of the remaining 78 mammals in the zoo was "normal", the mammals section has been closed since 14 October for disinfection and cleaning.

THM4 was the most abundant, and additionally, various unregulated disinfection byproducts were produced.

They then exposed the removed microbes to ultraviolet radiation, completing the disinfection.

The result: excess exposure to toxic lead, bacteria and a disinfection byproduct in Flint’s drinking water.