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首页> 外文会议>NATO Advanced Research Workshop on Riverbank Filtration: Understanding Contaminant Biogeochemistry and Pathogen Removal Sep 5-8, 2001 Tihany, Hungary >PUBLIC HEALTH ASPECTS OF RIVERBANK FILTRATION
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PUBLIC HEALTH ASPECTS OF RIVERBANK FILTRATION

机译：河网渗滤的公众健康问题

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摘要

Riverbank filtration is a very valuable pretreatment step in the use of river or lake water. The delay time for a contaminant to show up in the filtrate is very valuable because it allows time for preparation on how to deal with the contaminant. The mechanism of contaminant removal during the flow of the water through the layers of sand, gravel and clay is complex and is a mixture of filtration, adsorption, and biological degradation. The two major factors are the travel time and distance from the water source to the abstraction well. Since the layers of gravel, sand and clay were laid down millennia ago by natural processes, their homogeneity cannot be guaranteed, and fingers and channels may cause a short-circuiting. No two riverbank filtration systems are the same, and there is no substitute for an on-site investigation. The use of riverbank filtration is more prevalent in Europe but is slowly getting attention in the United States.
机译：在使用河水或湖水的过程中，河岸过滤是非常有价值的预处理步骤。污染物在滤液中出现的延迟时间非常有价值，因为它为准备如何处理污染物提供了时间。在水流过沙子，砾石和粘土层的过程中，污染物去除的机制很复杂，是过滤，吸附和生物降解的混合物。两个主要因素是从水源到提取井的行程时间和距离。由于砾石，沙子和粘土的层是在数千年前通过自然过程沉积的，因此无法保证它们的均匀性，并且手指和通道可能会引起短路。没有两个河岸过滤系统是相同的，并且不能替代现场调查。在欧洲，河岸过滤的使用更为普遍，但在美国却逐渐受到关注。

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