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中文摘要：
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0．7L／min、抽停时间比为1、抽吸时间为11min时管式膜过滤阻力增长最缓幔，模型预测值为1．69×10^12m^-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％。
英文摘要：
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%.
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