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Fate of Disinfection Byproduct Precursors During Riverbank Filtration at Three Midwest Utilities 三家中西部公用事业公司河岸过滤期间消毒副产品前体的去向
发布日期: 2001-06-01
河岸过滤(RBF)是一种在将河水用作饮用水供应之前将其置于地面通道的过程。欧洲使用RBF的经验以及美国最近的经验表明,在渗透和地下运输过程中,过滤、吸附和生物降解等过程会显著改善原水质量。随着饮用水公用事业公司努力满足日益严格的法规要求,预计RBF的应用将增加,尤其是在提供多重屏障以防止贾第虫和隐孢子虫等微生物病原体方面,以及对三卤甲烷(THM)和卤代乙酸(HAAs)等消毒副产品(DBPs)监管的预期收紧。 本文描述了一个有两个主要目标的项目:评估河岸过滤去除/控制DBP前体的优点;此外,评估RBF是否可以通过改变天然有机物(NOM)来改善成品饮用水质量,而这种改变是通过常规饮用水处理无法实现的。该项目包括三项研究,监测俄亥俄河、瓦巴什河和密苏里河沿岸三个河岸过滤系统的性能。包括9个参考文献、表格、图表。
Riverbank filtration (RBF) is a process that subjects river water to ground passage prior to its use as a drinking water supply. European experiences with RBF coupled with recent US experiences, demonstrate that during infiltration and underground transport, processes such as filtration, sorption, and biodegradation produce significant improvements in raw water quality. Increased applications of RBF are anticipated as drinking water utilities strive to meet increasingly stringent regulations, especially with regard to the provision of multiple barriers for protection against microbial pathogens such as Giardia, and Cryptosporidium, and with regard to anticipated tightening of regulations for disinfection byproducts (DBPs) such as trihalomethanes (THMs) and haloacetic acids (HAAs). This paper describes a project with two primary goals: to evaluate the merits of riverbank filtration for removing/controlling DBP precursors; and, to evaluate whether RBF can improve finished drinking water quality by altering natural organic matter (NOM) in a manner that is not otherwise accomplished through conventional drinking water treatment. The project consists of three studies that monitor the performance of three riverbank filtration systems along the Ohio, Wabash, and Missouri Rivers. Includes 9 references, table, figure.
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发布单位或类别: 美国-美国给水工程协会
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