Enhancing Copper Removal in Secondary Treatment by Chemical Addition

机译：通过化学添加提高二级处理中的铜去除率

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Chemical addition was tested for enhancing copper removal in the University of California,rnDavis (UCD) wastewater treatment plant (WWTP). Wastewater from the headworks andrnoxidation ditch were treated with ferric chloride and two organic precipitants in jar tests. Ferricrnchloride had little effect on residual dissolved copper, while the organic precipitants reduced itrnbelow 10 μg/L. In a full-scale trial, dose of 8 ppm to 13 ppm organic polymer effected a meanrnreduction in dissolved copper concentration of 2 μg/L, sufficient to maintain compliance with thernWWTP’s 13-μg/L water quality-based effluent limit for copper. Full-scale implementationrnrequired no additional solids separation or handling equipment.

机译：在加州大学戴维斯分校（UCD）废水处理厂（WWTP）中测试了添加化学药品对提高铜去除率的作用。在广口瓶试验中，用氯化铁和两种有机沉淀剂处理了渠首和氧化沟的废水。氯化铁对残留的溶解铜几乎没有影响，而有机沉淀剂将其降低到10μg/ L以下。在一项全面试验中，有机聚合物剂量为8 ppm至13 ppm时，平均溶解铜浓度降低了2μg/ L，足以维持污水处理厂基于水质的13μg/ L铜废水极限。全面实施无需额外的固体分离或处理设备。

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来源
《Water Environment Federation 75th annual technical exhibition amp; conference (WEFTEC 2002)》|2002年|p.1-8|共8页
会议地点 Chicago IL(US);Chicago IL(US)
作者
Matthew B. Gerhardt; Diane Nascimento; Robert A. Witzgall; Michael Fan;
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作者单位

Brown and Caldwell201 North Civic Drive, Suite 115Walnut Creek, CA 94596;

Brown and Caldwell;

Brown and Caldwell;

University of California, Davis;

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会议组织
原文格式 PDF
正文语种 eng
中图分类水体污染及其防治;环境污染防治方法与设备;
关键词
copper removal; precipitation; chemical addition; and coprecipitation;

机译：铜去除;沉淀;化学添加;和共沉淀;

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Enhancing Copper Removal in Secondary Treatment by Chemical Addition

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