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Sludge reduction of uncoupler in heavy metal wastewater treatment
Author(s): 
Pages: 274-277
Year: Issue:  2
Journal: JOURNAL OF HARBIN INSTITUTE OF TECHNOLOGY

Keyword:  活性污泥污泥减量重金属废水解偶联剂;
Abstract: 采用连续流活性污泥工艺处理铜离子质量浓度为1 mg/L重金属废水,在系统中添加2,6-二氯苯酚(DCP)作为解偶联剂,其质量浓度为20 mg/L.30 d的连续运行表明,DCP对污泥产率有很好的削减作用,剩余污泥产量相比对照实验下降70%左右.系统运行效能研究表明,COD去除效率相比对照实验下降约4%,Cu2+的去除率达到90%以上,且出水中2,6-二氯苯酚已检不出,但是污泥沉降性和污泥对氮、磷的去除率下降,污泥活性增加.镜检发现,运行30 d后,污泥中丝状菌增多,原生动物和后生动物数量和种类减少.实验结果表明,在运用连续流活性污泥工艺处理重金属废水的系统中添加解偶联剂削减污泥产量可行.
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