高盐条件下溴氨酸与偶氮染料废水的新型一体化生物处理技术
The new incorporation bio-treatment technology of bromoamine acid and azo dyes wastewaters under high-salt conditions.
作者信息
Guo Jianbo, Zhou Jiti, Wang Dong, Yang Jingliang, Li Zaixing
机构信息
School of Environmental and Biological Science and Technology, Dalian University of Technology, Dalian, 116023, People's Republic of China.
出版信息
Biodegradation. 2008 Feb;19(1):93-8. doi: 10.1007/s10532-007-9118-6. Epub 2007 May 30.
The accelerating effect of quinones has been studied in the bio-decolorization processes, but there are no literatures about the incorporation bio-treatment technology of the bromoamine acid (BA) wastewater and azo dyes wastewaters under high-salt conditions (NaCl, 15%, w/w). Here we described the BA wastewater as a redox mediator in the bio-decolorization of azo dye wastewaters. Decolorization of azo dyes was carried out experimentally using the salt-tolerant bacteria under the BA wastewater and high-salt conditions. The BA wastewater used as a redox mediator was able to increase the decolorization rate of wastewater containing azo dyes. The effects of various operating conditions such as dissolved oxygen, temperature, and pH on microbial decolorization were investigated experimentally. At the same time, BA was tested to assess the effects on the change of the Oxidation-Reduction Potential (ORP) values during the decolorization processes. The experiments explored a great improvement of the redox mediator application and the new bio-treatment concept.
醌类在生物脱色过程中的加速作用已得到研究，但关于高盐条件（NaCl，15%，w/w）下溴胺酸（BA）废水与偶氮染料废水的联合生物处理技术尚无文献报道。在此，我们描述了将BA废水作为偶氮染料废水生物脱色中的一种氧化还原介质。在BA废水和高盐条件下，使用耐盐细菌对偶氮染料进行了脱色实验。用作氧化还原介质的BA废水能够提高含偶氮染料废水的脱色率。通过实验研究了溶解氧、温度和pH等各种操作条件对微生物脱色的影响。同时，测试了BA对脱色过程中氧化还原电位（ORP）值变化的影响。这些实验探索了氧化还原介质应用的巨大改进以及新的生物处理概念。
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