黄浦江水用化合氯消毒生成DBPs的规律及数学模型研究

Study on the Rule and the Mathematic Model of DBPs Production in Treatment of Huangpu River Water with Combined Chlorine Disinfection

通过对黄浦江原水化合氯消毒过程生成的消毒副产物进行监测,并采用均匀试验研究黄浦江原水中氯消毒过程中DBPs生成模型。试验表明,黄浦江原水经过化合氯消毒生成的三卤甲烷和卤乙酸类消毒副产物最高浓度主要出现在温度较高的夏季,测得三卤甲烷、卤乙酸的最低值和最高值,三氯甲烷、二氯乙溴甲烷、一氯二溴甲烷的最高值;UV254与三卤甲烷生成量的相关性最好,相关系数在0.7以上,卤乙酸与有机物参数线性相关性较低,相关系数R2均在0.2以下;常规工艺对三卤甲烷和卤乙酸平均去除率在20%左右;最后建立了黄浦江原水消毒过程中三卤甲烷和卤乙酸类消毒副产物生成模型。

By monitoring the by-product generated in the process of combined chlorine disinfection for raw water from Huangpu River and taking homogeneity, generation model of DBPs in chlorine disinfection for raw water was to be studied.The experiment result indicated that the highest concentration of trihalomethane and haloacetic acids generated in the process of combined chlorine disinfection for raw water from Huangpu River mainly accured in summer, when the temperature is relatively high. And in one year, the lowest and highest concentration of trihalornethane and haloacetic acids was rneasuced. The correlation of generation between UV254 and trihalornethane was high and the coefficient was more than 0.7. The correlation of generation between haloacetie acids and substitute parameter of organic matter was lower and the coefficient was less than 0.2. The average removal efficiency of trihalornethane and haloacetic acids was about 20%. And last, the generation model of trihalornethane and haloacetic acids generated in the process of combined chlorine disinfection for raw water from Huangpu River.