白腐真菌生物膜反应器处理染料生产废水实验研究

研究了使用3种白腐真菌生物膜反应器处理染料生产废水．探讨了脱色．pH．COD去除与运行方式．反应器型式等因素之间的关系。结果表明．⑴间歇式运行中．3种反应器对染料生产废水的主要脱色作用都发生在24h内．脱色速度．最终脱色率和抗杂菌污染的能力均以组合填料生物接触氧化反应器最强．COD去除率却以生物转盘反应器最高。(2)连接式运行中．白腐真菌组合填料生物接触氧化反应器对染料废水的脱色效果．pH变化均与间歇式运行十分相似．最高脱色率达到99％左右．出水pH平均为3．6．但COD的去除率不高．且波动较大。将光合细菌以及活性污泥生物接触氧化反应器串接到白腐真菌生物膜反应器后显著提高了COD去除率．但出水色度并没有继续降低。

Experimental Study on Dye Wastewater Treatment By White Rot Fungal Biofilm Reactor

This paper intensively presented experimental results of dye wastewater decolorization and degradation with application of three kinds of white rot fungal biofilm reactors. During sequence batch experiments, all three kinds of reactors removed most of colors in 24 hrs, with the mixed carrier biofilm reactor having the highest decolorization rate as well as the strongest resistance against contamination from other microbes. During continueous operation, the mixed carrier biofilm reactor removed up to 99% colors from wastewater, whereas its COD removal was not so satisfactory. Using PSB and activated sludge to construct a post-treatment reactor could obviously enhance COD removal, while color of effluents remained almost no changed.