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Journal AWWA - Removing Cryptosporidium by Dissolved-Air Flotation AWWA期刊-通过溶解气浮去除隐孢子虫
发布日期: 1995-09-01
本研究采用实验室规模研究了溶解气浮(DAF)去除饮用水中微小隐孢子虫卵囊的有效性。将卵囊以3-4×10(5)个卵囊/L的浓度加入天然水中。结果表明,DAF在各种条件下都能实现卵囊的a>2对数去除。此外,在试验条件下,浮选是优于沉淀的澄清工艺。使残余浊度最小化和有机物去除率最大化的混凝和DAF条件是产生隐孢子虫高对数去除率的条件。 包括25个参考文献、表格和图表。
Bench-scale studies were used to investigate the effectiveness of dissolved-air flotation (DAF) for the removal of Cryptosporidium parvum oocysts from a drinking water supply. Oocysts were spiked into a natural water at a concentration of 3-4 x 10(5) oocysts/L. Results indicate that DAF achieved a >2-log removal of oocysts under a variety of conditions. In addition, flotation was a superior clarification process to sedimentation for the conditions tested. Coagulation and DAF conditions that minimize residual turbidity and maximize the removals of organic matter are conditions that produce high log removals of Cryptosporidium. Includes 25 references, tables, figures.
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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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