SBR工艺在处理模拟制革废水中运行参数的优化

在处理制革废水中常用SBR工艺，试验探讨了不同HRT、进水pH、COD负荷、NH3-N浓度、活性污泥浓度的运行参数，研究SBR工艺处理制革废水的最优运行参数．结果表明：SBR反应器在进水COD为1500～2000mg／L、NH3-N为150～250mg／L、pH为7．5、运行污泥浓度在3．0g／L左右、曝气时间为18h时COD去除率能达到95％左右，NH3-N去除率达到97％左右，其出水能够达到一级出水标准．

Parameters Optimization of SBR in Treatment of Simulation Tannery Wastewater

The optimization of parameters used in SBR for tannery wastewater treatment from HRT, the pH values of intake, COD load, NH3-N concentration and the activated sludge concentration was investigated. The results show in the process of SBR, when the intake COD is 1 500～2 000 mg/L, NH3-N is 150～250 mg/L, pH is 7.5, the operating sludge concentration is about 3. 0 g/L and the aeration time is 18h, the removal rate of COD is up to 95%.The NH3-N removal rate is about 97%.The outfall could be satisfied with the standard.