Rajendran R, Karthik Sundaram S, Prabhavathi P, Sridevi B V, Gopi V
PG and Research Department of Microbiology, PSG College of Arts and Science, Coimbatore-641014, Tamil Nadu, India.
Pak J Biol Sci. 2011 Jun 1;14(11):610-8. doi: 10.3923/pjbs.2011.610.618.
About 4 different predominant adapted fungal strains (screened from effluent sample) Aspergillus sp., Penicillium sp., Fusarium sp. and Mucor sp. and 4 predominant non-adapted strains (screened from soil, water and fungal fruiting bodies) Aspergillus sp., Penicillium sp., Fusarium sp. and Rhizopus sp., with potential dye decolorization ability on Reactive black 5, Amido black-10B, Red 5B, Reactive red 120 and Anthraquinone violet R were isolated. These organisms were used to develop a consortium which was used in analyzing the bioremediation efficiency on textile effluents containing a mixture of azo dyes. There was about 67% of reduction in color along with 34% of COD reduction by non-adapted fungal consortium while effective bioremediation efficiency was observed in adapted fungal consortium (Color 75% and COD 50%). The regression co-efficient for Langmuir and Freundlich adsorption isotherms were found to be higher for adapted fungal consortium (R2 = 0.97 and R2 = 0.92) than the non-adapted consortium (R2 = 0.97 and R2 = 0.85) proving that both monolayer and multilayer adsorption of dyes were observed on treating the samples with the adapted fungal consortium. On analyzing the results observed through chi-square test, the calculated value (28.712) was higher than the tabulated value (9.49) at a 4 degree freedom hence the hypothesis was rejected. So, there was an association between adapted fungal consortium and non-adapted fungal consortium and hence the adapted fungal consortium could be considered potentially useful for the bioremediation of textile effluent.
从废水样品中筛选出约4种不同的优势适应真菌菌株（曲霉属、青霉属、镰刀菌属和毛霉属）以及从土壤、水和真菌子实体中筛选出4种优势非适应菌株（曲霉属、青霉属、镰刀菌属和根霉属），这些菌株对活性黑5、氨基黑10B、红5B、活性红120和蒽醌紫R具有潜在的染料脱色能力。利用这些微生物构建了一个混合菌群，用于分析其对含有偶氮染料混合物的纺织废水的生物修复效率。非适应真菌混合菌群使颜色降低了约67%，化学需氧量降低了34%，而适应真菌混合菌群则表现出有效的生物修复效率（颜色降低75%，化学需氧量降低50%）。发现适应真菌混合菌群对朗缪尔和弗伦德里希吸附等温线的回归系数（R2 = 0.97和R2 = 0.92）高于非适应混合菌群（R2 = 0.97和R2 = 0.85），这证明在用适应真菌混合菌群处理样品时，观察到了染料的单层和多层吸附。通过卡方检验分析结果时，计算值（28.712）在4自由度下高于表格值（9.49），因此该假设被拒绝。所以，适应真菌混合菌群和非适应真菌混合菌群之间存在关联，因此适应真菌混合菌群可被认为对纺织废水的生物修复具有潜在用途。
