复合式折流板厌氧反应器处理城市污水

Pilot study on HABR for municipal sewage treatment

采用弹性立体填料的复合式折流板厌氧反应器处理城市污水 .研究结果表明 ,该装置处理城市污水效果显著 .当进水COD在 87- 32 0mg L范围内 (平均 2 2 7mg L)变化 ,水力停留时间大于 5 .2h ,反应系统的容积负荷小于 0 .86kgCOD (m3·d)时 ,常温下COD去除率大于 6 0 % ,出水COD平均为 81mg L ,SS去除率大于77.8% ,出水SS小于 30mg L ;反应系统在试验条件下温度与溶解性COD去除率成正相关 .试验还得出了系统处理城市污水溶解性BOD去除率随HRT变化的降解动力学模式 .

This study used HABR to treat municipal sewage in condition of normal temperature. The results of the experiment show that: While the influent COD ranges from 87?mg/L to 320?mg/L (the average is 227?mg/L), HRT exceeds 5.2?h, Nv (organic volume loading) is less than 0.86?kg COD /(m 3·d), the removal efficiency of COD and SS exceed 60% and 77.8% respectively, and the average of the effluent COD is 81?mg/L and the effluent SS is less than 30?mg/L. The removal of soluble COD is positive correlation to temperature in the experiment. In the study the degradation kinetic model of soluble BOD with HRT for municipal sewage treatment was built.