采用曝气生物膜法深度处理已有工艺中曝气池排出的染料废水(COD 300 mg/L,色度280).重点考察了气水比、水力负荷和滤床高度对色度去除率的影响.结果表明:曝气生物膜法深度处理染料废水是可行的,在气水比为1.5:1、水力负荷为1.0 m3/(m2·h)条件下,经过BAF反应器深度处理后出水色度为41.2,去除率为85.3％,达到《纺织染整工业水污染物排放标准》GB 4287-92一级排放标准；此外滤床高度对色度的去除也有着重要影响,色度的去除主要发生在0～0.8 m高度范围内,去除率达到84.8％.和其它技术相比,采用曝气生物膜法处理染料废水具有成本低、运行管理方便和占地面积小等特点,可为同类废水处理提供参考.
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