Abstract: Ultrafiltration (UF) membrane module with membrane pore size of 50nm was used as pretreatment for a two-phase anaerobic process in order to improve the bio-treating performance of high concentration organic wastewater containing polyphenols. The results showed that the COD removal rate was 37.3% and SS removal rate was 87.8% under the operating pressure of 0.2MPa when wastewater was pretreated by the UF membrane. The effects of inlet ratio，phosphorous concentration and the ratio of HRT2/ HRT1 (hydraulic retention time) on COD removal rate and methane output were also discussed. The best results for the treatment of wastewater containing polyphenols were： COD removal rate of 83.5%，an improvement of 5%～7%，and methane output of anaerobic reactor of 0.46 m3/kg(COD)，an improvement of 0.10 m3/kg(COD)，when inlet ratio was 15.0%，phosphorous concentration was 71.5 mg/L and the ratio of HRT2/ HRT1 was 3～4.

摘要： 为提高高浓度有机废水厌氧处理的效能，采用膜孔径为50 nm的超滤膜组件在两相厌氧反应器前端对废水进行预处理，然后对废水进行两相厌氧水解。实验结果表明，当过膜压力为0.2 MPa时，COD去除率为37.3%，SS去除率可达87.8%。与未经过超滤膜预处理的水样进行对比，经过超滤膜处理后的水样在厌氧处理时COD去除率可提高5%～7%，沼气产率增加约为0.1 m3/kg(COD)。同时投加比、P含量和HRT2/ HRT1比值对COD去除率和沼气产率也存在一定的影响，当投加比15.0%、PO43－投加量为71.5 mg/L、HRT2/ HRT1比值为3～4时，两相厌氧处理茶多酚废水达到最佳效果，COD最高去除率可达83.5%，沼气产率达0.46 m3/kg(COD)。