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Evaluation of Various Methods for Distribution System Biofilm Control 配电系统生物膜控制各种方法的评价
发布日期: 1995-01-01
这项研究的结果虽然目前尚处于初步阶段,但表明对于所研究的大多数管道类型和尺寸,单向冲洗似乎是配水系统生物膜控制的最实用和最有效的方法。由于分配系统生物膜的生态极其复杂,需要多种类型的微生物监测系统才能获得最大数量的信息。微生物数据需要与水管冲洗程序期间发生的水力现象一起解释,以准确说明冲洗事件和水管清洁程度。 这些信息可用于改进冲洗程序,以最大限度地提高配电系统维护活动,并维持系统内的水质。与传统冲洗或水管清管相比,单向冲洗的成本要低得多,这使其成为许多供水设施的可行方案。
Results of this study, although preliminary at this time, indicate that for the majority of pipe types and sizes studied, unidirectional flushing appears to be the most practical and effective means of biofilm control for a distribution system. As the ecology of distribution system biofilms is extremely complex, more than one type of microbial monitoring system is required to obtain the maximum amount of information. Microbial data needs to be interpreted together with the hydraulic phenomena occurring during the mains flushing program to give an accurate account of the flushing event and degree of mains cleaning. This information can then be used to improve flushing programs to maximize distribution system maintenance activities and to maintain water quality within the system. The costs of unidirectional flushing are considerably lower than for conventional flushing or water line pigging, making it a viable program for many water utilities.
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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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