驯化污泥及生物滤池法处理高含盐石化废水  

Treatment of Petrochemical High-Salinity Wastewater by Sludge Acclimation and Bio-Filter

作　　者：王基成[1] 张秀霞[2] 王建娜[1] 潘咸峰[1] 

机构地区：[1]中国石化齐鲁分公司,山东淄博255400 [2]中国石油大学(华东)环境科学与工程系,山东青岛266555

出　　处：《石油学报（石油加工）》2011年第6期977-983,共7页Acta Petrolei Sinica(Petroleum Processing Section)

摘　　要：考察了纯氧曝气活性污泥和生物滤池深度处理石化高盐废水的工艺条件及处理效率。结果表明,在总溶固(TDS)为18000～35000mg/L的范围,通过驯化培养出的耐盐活性污泥能够适应短时间的盐浓度冲击,在纯氧曝气活性污泥工艺中,使废水的化学需氧量(COD)的平均降低率达到85%。进一步采用厌氧生物滤池(AF)和曝气生物滤池(BAF)工艺对生化出水进行深度处理,在共基质质量浓度12mg/L,BAF水力停留时间2.7h、水力负荷1.1m3/(m2.h)条件下,当待处理废水的COD在58.1～114.1mg/L、NH3-N质量浓度在1.2～19.0mg/L范围时,废水的COD平均降低率可达43.7%,NH3-N平均降低率达74.2%,出水的COD和NH3-N的质量浓度平均值分别为42.9和2.2mg/L。The treatment conditions and efficiency of pure oxygen activated sludge and bio-filter advanced treatment method for petrochemical high-salinity wastewater were studied.The results showed that the salt-tolerant activated sludge through cultivation and domestication was able to adapt to the impact of salt concentration in a short time when the total dissolved solid（TDS） was in the range of 18000-35000 mg/L.The average COD reduction rate of the high-salinity wastewater treated by pure oxygen activated sludge could be up to 85%.The AF and BAF methods were used for the effluent advanced treatment.At the optimal conditions of co-substrate concentration 12 mg/L,BAF hydraulic retention time 2.7 h and hydraulic loading 1.1 m3/（m2·h）,the average reduction rates of COD and c（NH3-N） for the high-salinity wastewater with COD of 58.1-114.1 mg/L and c（NH3-N） of 1.2-19.0 mg/L were 43.7% and 74.2%,and the average COD and mass concentration of NH3-N of final effluent were 42.9 and 2.2 mg/L,respectively.

关 键 词：含盐废水 活性污泥 水解酸化 共降解 生物滤池 

分 类 号：X172[环境科学与工程—环境科学] TE991[石油与天然气工程—石油机械设备]