Comparison of Excess Sludge Reduction Effect of Dichlorophenol Isomers
Comparison of Excess Sludge Reduction Effect of Dichlorophenol Isomers
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DOI：
10.4172/2375-4397.1000196
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发表时间：
2017-08
期刊：
影响因子：
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通讯作者：
Z. Kimura;Hironaga Akita
中科院分区：
文献类型：
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作者：
Z. Kimura;Hironaga Akita
研究了解偶联法中使用的二氯酚（DCP）异构体的氯化位置对污泥减量效果的影响。这项研究包括两个不同的实验。对dcp对SOUR影响的批量实验表明，3,5- dcp解偶联活性最强。第二个试验中，6个不同顺序间歇式反应器添加100 mM dcp，运行2个月，3,5- dcp也表现出最强的污泥减量效果。本研究考察的操作将dcp的浓度维持在100 mM，添加3,5- dcp的反应器COD去除率为bbb80 %，连续运行2个月几乎没有产生多余污泥。其他dcp没有得到这些结果。这是第一个报道与DCP异构体中氯化部位相关的污泥减少效果差异的研究。结果表明，3,5- dcp是涉及dcp的解耦方法中最有效的选择。
Differences in sludge reduction effect due to chlorinated sites of dichlorophenol (DCP) isomers used in an uncoupling method were investigated. The study involved two different experiments. A batch experiment conducted to examine the effect of DCPs on SOUR clearly indicated that 3,5-DCP exhibited the strongest uncoupling activity. In the second experiment, in which six different sequence batch reactors were amended with 100 mM DCPs and operated for 2 months, 3,5-DCP also exhibited the strongest sludge reducing effect. The operations examined in this research maintained the concentration of DCPs at 100 mM, and reactors added with 3,5-DCP produced a COD removal rate of >80%, with almost no excess sludge generated in 2 months of continual operation. These results were not obtained with other DCPs. This is the first study to report differences in the sludge reduction effect associated with the chlorination site in the DCP isomer. The results indicate that 3,5-DCP is the most effective option for use in uncoupling methods involving DCPs.