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本研究以典型氨基糖类物质D-(+)-葡萄糖胺为研究对象,采用氯消毒方式,探究了D-(+)-葡萄糖胺是否是卤代碳、氮消毒副产物三卤甲烷(THMs)和三氯硝基甲烷(TCNM)的前驱物,明确其THMs和TCNM生成势及投氯量、p H值、溴离子浓度、亚硝酸根离子浓度这对其生成势的影响。结果表明:D-(+)-葡萄糖胺是THMs和TCNM的主要前驱物,三氯甲烷是氯消毒过程中主要的THMs物种。增大投氯量,HNMs和TCNM的生成势均升高;随着p H值的增大,THMs的生成势升高,TCNM的生成势先升高后降低;随着溴离子浓度和亚硝酸根离子浓度的增大,THMs的生成势均为先升高后降低,而TCNM生成势在高溴离子和高亚硝酸根离子浓度下则表现出被抑制的趋势。
In this study, D - (+) - glucosamine, a typical amino sugar, was chosen as the research object to investigate whether D - (+) - glucosamine is a halogenated carbon and nitrogen disinfection byproduct trihalomethane (THMs ) And trichloronitromethane (TCNM) precursors, to clarify its THMs and TCNM generation potential and the amount of chloride, p H value, bromide ion concentration, nitrite ion concentration on the generation potential. The results showed that D - (+) - glucosamine was the main precursor of THMs and TCNM. Chloroform was the main THM species in the process of chlorine disinfection. Increasing the dosage of chlorine increased the generation potential of HNMs and TCNM. With the increase of p H value, the generation potential of THMs increased and the production potential of TCNM increased firstly and then decreased. With the increase of bromide ion concentration and nitrite acid The increase of ion concentration and the generation potential of THMs firstly increased and then decreased, while that of TCNM showed a tendency of being inhibited under high bromide ion concentration and high nitrite ion concentration.