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Journal AWWA - Experience With Riverbank Filtration Along the Rhine River AWWA期刊-莱茵河沿岸河岸过滤的经验
发布日期: 1980-07-01
河岸过滤在莱茵河沿岸已经使用了几十年。铁、磷酸盐和重金属通过沉淀去除,不会造成蓄水层堵塞。总的来说,通过生物氧化,有机物的有效去除率高达75%,硝酸盐在缺氧条件下充当电子受体。低生物降解性的卤化有机物更容易渗透。河流水质的改善会影响河岸滤液和成品水。当卤素含量相对较高时,特定微量有机物的去除效果较差。银行过滤已被证明是一个有价值的处理步骤,并与活性炭过滤器相结合,确保安全饮用水。 包括8个参考文献、表格、图表。
Riverbank filtration has been used along the Rhine River for many decades. Iron, phosphates, and heavy metals are eliminated by precipitation without causing aquifer clogging. Overall, organics are effectively removed by as much as 75 percent via biological oxidation whereby nitrate serves as an electron acceptor under anoxic conditions. Halogenated organics with low biodegradability penetrate more easily. Improvements in river quality influence both the bank filtrate and the finished water. Specific trace organics are poorly removed when their halogen content is relatively high. Bank filtration has proved to be a valuable treatment step, and in combination with activated carbon filters ensures a safe drinking water. Includes 8 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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