• 关键词：染料  微生物脱色

• 基金项目：国家自然科学基金资助项目

• 鲜海军
• 中国科学院微生物研究所, 北京

• 杨惠芳
• 中国科学院微生物研究所, 北京

• 摘要：从印染、毛纺等废水处理场的生物膜和活性污泥中分离到13株对36种染料有脱色能力的细菌。其中三株转化单胞菌D₃₂,D₃₃,D₄分别对29种染料有良好的脱色作用,其完整细胞对单一染料的脱色活力达2.6mg·g^-1（细胞湿重）·h^-1。对脱色反应的条件和机理进行了初探。

• Abstract：13 strains of bacteria able to decolorize various dyes were isolated from activated sludge and biofilm collected from textile wastewater treatment plants and were identified as Alteromonas, Klebsiella, Pseudomon-as, Enterobacter, Alcaligenes and Corynebacterium, Among 36 dyes tested, three strains of Alteromonas D₄, D₃₂ and D₃₃ could decolorize 29 of them with a decoloring ability of 2.6 mg per gram of cell per hour. The optimum pH was 7-8 and the optimum temperature was 37℃. The growth of the bacteria in shaking cultures was 3 times better than that in static cultures, but the rate of decolorization of dyes in the latter was 4-8 times higher than that in the former. The results of the examination on the reaction products of Diamond Chrome Red B and Diamond Nary Blue RRN indicated the possibility of biodegradation of these dyes by Enterobacter D₁₇.

• Key words：dye  microbial decolorization.

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