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首页> 外文期刊>International Journal of Environmental Research and Public Health >The Comparative Study on the Rapid Decolorization of Azo, Anthraquinone and Triphenylmethane Dyes by Anaerobic Sludge
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The Comparative Study on the Rapid Decolorization of Azo, Anthraquinone and Triphenylmethane Dyes by Anaerobic Sludge

机译：厌氧污泥亚唑，蒽醌和三苯基甲烷染料快速脱色的比较研究

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An anaerobic sludge (AS), capable of decolorizing a variety of synthetic dyes, was acclimated and is reported here. The sludge presented a much better dye decolorizing ability than that of different individual strains. A broad spectrum of dyes could be decolorized by the sludge. Continuous decolorization tests showed that the sludge exhibited the ability to decolorize repeated additions of dye. The chemical oxygen demand (COD) removal rate of the dye wastewater reached 52% after 12 h of incubation. Polymerase chain reaction and denaturing gradient gel electrophoresis (PCR-DGGE) profiles revealed that the microbial community changed as a result of varying initial concentrations of dyes. Phylogenetic analysis indicated that microbial populations in the sludge belonged to the phyla Acidobacteria, Firmicutes, Bacteroidetes, Chloroflexi and Proteobacteria. The degradation products of the three types of dye were identified. For azo dyes, the anaerobic sludge converted Methyl Orange to N , N -dimethylbenzene-1,4-diamine and 4-aminobenzenesulfonic acid; for triphenylmethane dyes, after Malachite Green was decolorized, the analyzed products were found to be a mixture of N , N -dimethylbenzenamine, 3-dimethyl-aminophenol and 4-dimethylaminobenzophenone; for anthraquinone dyes, two products (acetophenone and 2-methylbenzoic acid) were observed after Reactive Blue 19 decolorization. Together, these results suggest that the anaerobic sludge has promising potential for use in the treatment of industrial wastewater containing various types of dyes.
机译：能够脱色各种合成染料的厌氧污泥（AS）被适应并在此报道。污泥呈现出比不同个体菌株的更好的染色能力。可以通过污泥脱色广谱染料。连续脱色试验表明，污泥表现出脱色重复添加染料的能力。培养12小时后，染料废水的化学需氧量（COD）去除率达到52％。聚合酶链反应和变性梯度凝胶电泳（PCR-DGGE）曲线显示，由于改变初始染料的结果，微生物群体发生变化。系统发育分析表明，污泥中的微生物群属于嗜酸杆菌，压制，细菌，氯锥形和植物。鉴定了三种染料的降解产物。对于偶氮染料，厌氧污泥将甲基橙转化为N，N-二甲基苯-1,4-二胺和4-氨基苯磺酸;对于三苯基甲烷染料，在脱色孔雀石绿色后，发现分析的产物是N，N-二甲基苯胺，3-二甲基 - 氨基苯酚和4-二甲基氨基苯甲酮的混合物;对于蒽醌染料，在反应性蓝19脱色后观察到两种产物（苯乙酮和2-甲基苯甲酸）。这些结果表明，厌氧污泥具有有希望用于治疗含有各种类型染料的工业废水的可能性。

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