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Control of Disinfection By-Products by Pre-oxidation Processes

机译：通过预氧化过程控制消毒副产物

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As disinfection by-products have carcinogenic effects for liver, kidney and digestive system, and have adverse effects on human health, so formation and control of DBPs in drinking water has attracted more and more attention of researchers and common people. Taking polluted raw water of Erlongshan reservoir for the study, through the beaker experiment to study results of removal of dissolved organic matter (DOM) and control of DBPs trihalomethanes (THMs) by pre-oxidation processes (Potassium permanganate + liquid chlorine). Using three types of resin (XAD-7 、AG-MP-50 、WA-10),DOM was fractionated into 6 fractions : hydrophobic acid (HPOA),hydrophobic base (HPOB), hydrophobic neutral (HPON), hydrophilic acid (HPIA), hydrophilic base (HPIB), hydrophilic neutral (HPIN ).The results indicated that: trihalomethane formation potential (THMFP)of the 6 fractions was decreased significantly .The THMs yields with combined pre-oxidation was reduced 55.19% than with prechlorination. the combined preoxidation by chlorine and Potassium permanganate could reduce the THMs yields efficiently.
机译：由于消毒副产物对肝脏，肾脏和消化系统具有致癌作用，并对人体健康产生不利影响，因此饮用水中DBP的形成和控制已引起研究人员和普通百姓越来越多的关注。以二龙山水库被污染的原水为研究对象，通过烧杯实验研究了通过预氧化工艺（高锰酸钾+液氯）去除溶解有机物（DOM）和控制DBPs三卤甲烷（THMs）的结果。使用三种类型的树脂（XAD-7，AG-MP-50，WA-10），将DOM分为6部分：疏水酸（HPOA），疏水碱（HPOB），疏水中性（HPON），亲水性酸（HPIA）结果表明：6种馏分的三卤甲烷生成潜力（THMFP）显着降低，联合预氧化的THMs产率比预氯化降低55.19％。氯和高锰酸钾的联合预氧化可有效降低THMs的产量。

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