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首页> 外文期刊>Journal of Environmental Engineering >Secondary benefits of aquifer storage and recovery: Disinfection by-product control
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Secondary benefits of aquifer storage and recovery: Disinfection by-product control

机译：含水层储存和回收的次要好处：消毒副产物控制

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The potential of biological processes during aquifer storage to reduce disinfection by-products (DBP), and DBP precursors were examined under controlled conditions. Finished water treated by conventional water treatment practice was pumped into a sand media column for up to 34 days of residence time. Two experiments were conducted where the finished water was chlorinated or ozonated prior to injection. Chlorination of water withdrawn from simulated aquifer storage conditions resulted in reduced formation of trihalomethane (THM) concentrations for all three treated water types. Ozonation of finished water resulted in a 70% decrease in TTHM formation. Aquifer storage of finished water resulted in a 26-28% reduction in TTHM formation and the removal of preformed THM species was as high as 40%. Overall, aquifer storage of chlorinated finished water resulted in a 44% reduction in TTHM formation when additionally chlorinated after withdrawal. Bromate formed during ozonation was reduced by approximately 54%. This study indicates that the sequencing of chlorination or ozonation with respect to aquifer storage and recovery operations can impact DBP formation. [References: 13]
机译：在受控条件下检查了含水层存储过程中减少消毒副产物（DBP）和DBP前体的生物过程的潜力。通过常规水处理实践处理过的成品水被泵送到砂介质塔中，停留时间最多为34天。进行了两个实验，其中在注射之前将最终水进行氯化或臭氧处理。从模拟含水层储存条件中抽出的水经过氯化处理后，所有三种处理过的水类型均减少了三卤甲烷（THM）浓度的形成。最终水的臭氧化导致TTHM的形成减少了70％。最终水的含水层存储导致TTHM形成减少26-28％，而预先形成的THM种类的去除率高达40％。总的来说，当撤出后再进行氯化处理时，含水的氯化最终处理水的储存导致TTHM的形成减少了44％。臭氧化过程中形成的溴酸盐减少了约54％。这项研究表明，相对于含水层的存储和回收操作，氯化或臭氧化的顺序可能会影响DBP的形成。 [参考：13]

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