加压溶气恒定溶解氧生化反应器处理复杂工业废水  

Treatment of the complex industrial wastewater by pressured aeration-dissolved air biochemical reactor with constant DO

作　　者：周振[1] 刘淑杰[2] 陈福明[2] 杨春平[1] 刘红玉[1] 刘旭[2] 张其殿[2] 

机构地区：[1]湖南大学环境科学与工程学院,湖南长沙410082 [2]深圳清华大学研究院,深圳环境微生物资源开发与应用工程实验室,广东深圳518057

出　　处：《工业水处理》2017年第3期60-64,共5页Industrial Water Treatment

基　　金：深圳市重点实验室(三大产业)资助项目(CXB201104-250056A)

摘　　要：设计了1套可自动控制溶解氧浓度和反应器内部压力的生化反应器,在加压状态下,氧传递速率加快,微生物活性更高,加快了处理效率。试验进水来自深圳市危险废物处理站有限公司,水质复杂,进水指标变化系数大,平均COD为1 349.1 mg/L,平均氨氮质量浓度为237.7 mg/L。当水力停留时间(HRT)为14 h,反应罐内DO质量浓度为3.5 mg/L时,COD去除率稳定在64%左右,氨氮去除率56%左右,相比于其现有工艺,HRT减少了16 h左右。A set of biochemical reactor,in which the concentration of dissolved oxygen（DO）and internal pressureare controlled automatically,has been designed. Under pressured state,the oxygen transmission velocity gets faster,microbial activity gets better,and treatment efficiency gets higher. The influent used in the experiments is fromShenzhen Hazardous Waste Treatment Station Co.,Ltd. The influent water quality is complicated and variation coef-ficient is high,Its average COD is 1 349.1 mg/L,and average ammonia-nitrogen concentration is 237.7 mg/L. Whenthe HRT is 14 h,and DO in the reaction tank 3.5 mg/L,the COD removing rate keeps at about 64%,and ammonia-nitrogen removing rate is about 56%. Its HRT is about 16 h less than that of the processes existed nowadays.

关 键 词：加压溶气 恒定溶解氧 工业废水 

分 类 号：X703.3[环境科学与工程—环境工程]