Reasearch on oxidation by-product in water treatment using potassium permanganate
高锰酸钾净水的氧化副产物研究

The coagulation treatment was conducted on the Beijing Jingmi canal water and the Songhua River water potassium permanganate for pre-oxidation. The organic compounds in raw water and treated water are analyzed with the gas chromatograph and mass spectrometer.Based on the Drinking Water Regulations and Health Advisories issued by US Environment Protection Agency (USEPA) in 1997,a preliminary evaluation was carried out to examine human health concerns of the by|products produced during potassium permanganate preoxidation for drinking water treatment.The experimental results showed that the toxic by|products of potassium permanganate oxidation,specified by USEPA,could not be detected under the experimental conditions.It was considered that pre|oxidation using potassium permanganate and the adsorption of newly formed manganese dioxide produced during oxidation process should be responsible.