响应面分析法优化MBR处理底泥沥出液的研究  

MEMBRANE FOULING OPTIMIZATION BY RESPONSE SURFACE METHODOLOGY IN THE TUBULAR MEMBRANE BIOREACTOR FOR SEDIMENT LEACHATE TREATMENT

作　　者：孙骞[1] 王亮[1,2] 董冰洁[1] 赵斌[1,2] 郭幸斐[1,2] 张贺[1] 

机构地区：[1]天津工业大学环境与化学工程学院 [2]中空纤维膜材料与膜过程省部共建国家重点实验室培育基地,天津300387

出　　处：《水处理技术》2014年第5期66-69,共4页Technology of Water Treatment

基　　金：国家自然科学基金(51138008;51108315;21206125);天津市科技支撑重点项目(11ZCGYSF01500)

摘　　要：采用浸没式管式膜生物反应器,以响应面分析方法(RSM)对处理经内电解预处理后的污水库底泥沥出液的关键运行参数(曝气强度、抽停时间比和抽吸时间)进行优化。结果表明,当曝气强度为0.7 L/min、抽停时间比为1、抽吸时间为11 min时管式膜过滤阻力增长最缓慢,模型预测值为1.69×1012m-1·h-1,与实测值间的误差仅为4.29%。抽停时间比是影响膜阻力变化的最主要因素,曝气强度和抽停时间比之间的交互作用较强。进一步的实验结果证明,响应面分析法所得到的模型能准确预测不同运行条件下管式膜过滤阻力的变化,其误差小于5%。Immersion tube type membrane bioreactor was used for treatment of leachate from bottom mud of sewage reservoir. Three key operating parameters related to membrane fouling, namely aeration strength, suction-cease time ratio and suction time, were investigated by means of response surface methodology （RSM） in the submerged tubular MBR. According to the RSM results, the optimum conditions for membrane fouling mitigation were identified as： aeration strength 0.7 L/min, suction-cease time ratio 1 and suction time 11 rain. Under the optimum conditions, the minimal increase rate of the membrane filtration resistance was predicted to be 1.69×10^12m^-1·h^-1 which was only 4.29% different from the experimental value. Suctioncease time ratio showed the greatest effect on membrane fouling control, while aeration strength and suction-cease time ratio showed the strongest interactive effect. Confirmation experiments proved that the model obtained by RSM could successfully predict the increase rates of membrane filtration resistance under different operating conditions with errors less than 5%.

关 键 词：管式膜 膜生物反应器 膜污染 响应面方法 底泥沥出液 

分 类 号：X703.1[环境科学与工程—环境工程]