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淹没式MBR去除有机物动力学模型及其应用

A model of removing organic substrate for submerged membrane bioreactor and its application

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【作者】 张立秋封莉吕炳南张晓菲

【Author】 ZHANG Liqiu~(1,2), FENG Li~1, L Bingnan~1, ZHANG Xiaofei~1(1.School of Municipal and Environmental Engineering, Harbin University of Technology, Harbin 150090, China;2.Institute of Engineering Mechanics, China Seismological Bureau, Harbin 150001, China)

【机构】 哈尔滨工业大学市政环境工程学院哈尔滨工业大学市政环境工程学院 哈尔滨150090中国国家地震局工程力学研究所哈尔滨150001哈尔滨150090哈尔滨150090

【摘要】 针对淹没式MBR的工艺特点,以反应器内物料衡算为基础,建立了有机物去除的动力学模型———ROM模型,得出淹没式MBR对有机底物的去除速率Uy不仅与进、出水中的有机底物质量浓度S0、Se和水力停留时间tH有关,还与膜组件去除的有机底物质量浓度Sm、污泥停留时间tS有关.利用ROM模型,可以预测反应器内活性污泥浓度X,确定污泥停留时间tS和不排泥条件下反应器内的最大活性污泥浓度Xmax.试验中以啤酒厂废水为例,对模型进行了验证,试验结果与模型计算结果基本一致.

【Abstract】 A ROM model, a kinetics model of organic substrate removal for submerged membrane bioreactor was established on the basis of material balance.According to the model, the organic substrate removal rate is determined not only by the organic substrate concentrations of influent and effluent and hydraulic retention time (HRT), but also the organic substrate concentration removed by membrane modules and sludge retention time (SRT). Meanwhile, SRT and the maximum mixed liquor volatile suspended solids (MLVSS) value without discharging sludge can be determined as well as the concentration of MLVSS can be predicted in the reactor. Brewery wastewater was chosen and examined to verify the model and the results showed that the experimental data were coincident with the calculating data.

【基金】 国家“十五”科技攻关计划项目(2002BA806B04)
  • 【文献出处】 膜科学与技术 ,Membrane Science and Technology , 编辑部邮箱 ,2005年03期
  • 【分类号】X703
  • 【被引频次】5
  • 【下载频次】346
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