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首页> 外文期刊>Fibres & textiles in Eastern Europe >Biological Treatment of Post-Nanofiltration Concentrate of Real Textile Wastewater
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Biological Treatment of Post-Nanofiltration Concentrate of Real Textile Wastewater

机译：天然纺织废水纳滤后浓缩液的生物处理

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The paper evaluates the different bioreactor systems in the treatment of real textile wastewater containing Reactive Red 120 dye concentrated in nanofiltration processes as well as real textile wastewater taken from a working factory. The two-stage sequential semi-fed batch bioreactors and the continuous system with activated carbon used as support material in the anaerobic fixed film bioreactor combined with an aerobic bioreactor, after an acclimatisation period, were very efficient in colour removal, which achieved 95%. The aromatic amine ( orthanilic acid) released as a result of the azo bond cleavage was traced both in anaerobic (accumulation) and aerobic (degradation) conditions. Biogas production in both systems was very low. Nevertheless indirect biogas production assessment showed some biogas production potential in nanofiltration concentrate without an additional carbon source. Furthermore the nanofiltration concentrate did not inhibit biogas production from synthetic wastewater. Scanning electron microscope visualisation allowed for investigation of biofilm on activated carbon which consisted of at least two layers.
机译：本文评估了不同的生物反应器系统在处理包含纳滤过程中浓缩的活性红120染料的真实纺织废水以及从工厂提取的真实纺织废水中的不同生物反应器系统。经过两阶段的半进料分批生物反应器以及在厌氧固定膜生物反应器中与好氧生物反应器结合使用的，以活性炭为载体的连续系统，经过适应期后，脱色非常有效，达到了95％。在厌氧（积累）和好氧（降解）条件下都可以追溯到由于偶氮键断裂而释放的芳香胺（邻氨基苯甲酸）。两个系统中的沼气产量都很低。然而，间接沼气生产评估显示，在没有额外碳源的情况下，纳滤浓缩物中有一定的沼气生产潜力。此外，纳滤浓缩物不会抑制合成废水中沼气的产生。扫描电子显微镜可视化允许研究由至少两层组成的活性炭上的生物膜。

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