title: The new incorporation bio-treatment technology of bromoamine acid and azo dyes wastewaters under high-salt conditions.
abstract: 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.
authors.affiliation: School of Environmental and Biological Science and Technology, Dalian University of Technology, Dalian, 116023, People's Republic of China. jianbguo@yahoo.com.cn
authors.forename: Jianbo
authors.initials: J
authors.lastname: Guo
authors.forename: Jiti
authors.initials: J
authors.lastname: Zhou
authors.forename: Dong
authors.initials: D
authors.lastname: Wang
authors.forename: Jingliang
authors.initials: J
authors.lastname: Yang
authors.forename: Zaixing
authors.initials: Z
authors.lastname: Li
mesh_terms: D000880:Anthraquinones / Q000737:chemistry / Q000378:metabolism*; D001391:Azo Compounds / Q000378:metabolism*; D001673:Biodegradation, Environmental; D019149:Bioreactors; D004396:Coloring Agents / Q000378:metabolism*; D010084:Oxidation-Reduction; D012965:Sodium Chloride / Q000494:pharmacology*; D014865:Waste Disposal, Fluid / Q000379:methods*; D018508:Water Purification
chemical_list: C527671:1-amino-4-bromoanthraquinone-2-sulfonic acid; D000880:Anthraquinones; D001391:Azo Compounds; D004396:Coloring Agents; D012965:Sodium Chloride