SBR与MAP法联合处理磷酸盐工业废水的效能  

Combined Process of SBR and MAP for Treatment of Phosphate-containing Industrial Wastewater

作　　者：汤琪[1] 季铁军 罗固源[3] 

机构地区：[1]重庆交通大学理学院,重庆400074 [2]重庆市万州区城乡建设委员会,重庆404020 [3]重庆大学城市建设与环境工程学院,重庆400030

出　　处：《中国给水排水》2010年第23期6-9,共4页China Water & Wastewater

基　　金：重庆交通大学博士基金资助项目(2009kjc-015);国家自然科学基金资助项目(50378095)

摘　　要：磷酸盐工业废水经磷酸铵镁沉淀法处理后,出水的TP为10.26 mg/L、TN为67.32mg/L、电导率为30 000μS/cm。探讨了采用SBR法对其进一步处理的可行性。采用常规的活性污泥,通过逐步提高废水的含盐量,驯化出了在较高含盐量下仍具有较好活性的活性污泥。考察了含盐量和运行周期对去除TN、TP、COD的影响。结果表明,当沉淀出水和生活污水以1∶1混合后,TN、TP、COD分别约为50、7、320 mg/L,电导率约为15 000μS/cm;在运行周期为10 h(厌氧:1.5h、好氧:4.5 h、缺氧:2.5 h、后好氧:0.5 h、沉淀排水和闲置:1.0 h)的条件下,出水TN<15 mg/L、TP<1.0 mg/L、COD约为22 mg/L,对TN、TP、COD的去除率分别可达75%、86%、92%以上。After phosphate-containing industrial wastewater is treated by magnesium ammonium phosphate （MAP） process, the effluent TP, TN and conductivity are 10.26 mg/L, 67.32 mg/L and 30 000 μS/cm respectively. The feasibility of the treatment of the effluent by SBR process is discussed. Common activated sludge is domesticated by increasing wastewater salinity. The domesticated sludge has good activity at high salinity. The effects of salinity and operation period on removal rates of TN, TP and COD were investigated. The results show that when the sedimentation effluent and sewage are mixed at a ratio of 1 ： 1, TN, TP, COD and conductivity are 50 mg/L, 7 mg/L, 320 mg/L and 15 000 μS/cm respeetively. When the operation period is 10 h （anaerobie time of 1.5 h, aerobic time of 4.5 h, anoxie time of 2.5 h, post-aerobic time of 0.5 h, sedimentation, drainage and idle time of 1.0 h）, the effluent TN, TP and COD are less than 15mg/L, 1.0 mg/L and about 22 mg/L, the removal rates being above 75%, 86% and 92% respectively.

关 键 词：SBR 磷酸铵镁 磷酸盐废水 脱氮除磷 

分 类 号：X703[环境科学与工程—环境工程]