摘要
以一体式膜生物反应器(SMBR)对生活污水进行处理,研究不同水力停留时间(HRT)条件下污泥浓度对有机物去除率的影响,并对所得试验数据进行曲线拟合,建立有机物去除率与污泥浓度的数学模型。试验结果表明:在溶解氧(DO)浓度为2.0～3.0mg/L的条件下,HRT为3h、2h和1h时,有机物去除率(η)随着污泥浓度的增大而增大,但当污泥浓度增大到6000mg/L时,η增大趋势逐渐减小,并趋于稳定。有机物去除率与污泥浓度的数学模型表明:有机物去除率(η)与水力停留时间(τ)、进水COD浓度(S_o)和污泥负荷率(N_s)等主要运行参数有关,并可以通过调节运行参数τ、S_o和N_s来达到所需要的COD去除率。
The influence of different MLSS on the removal rate of organic pollutions at different Hydraulic Retention Time (HRT) was studied in the domestic wastewater treatment by SMBR in this paper. According to experimental data, a mathematical model was established and simulation was conducted by the mathematical software of MATLAB. The dissolved oxygen (DO) concentration was controlled at 2.0～3.0 mg/L during all the experimental period. HRT was 1h,2h and 3h. The experiment demonstrated that the removal rate of or...
出处
《地球科学进展》
CAS
CSCD
2004年第S1期176-179,共4页
Advances in Earth Science
基金
国家863计划项目(编号:2002AA601310)
哈尔滨市科技攻关计划项目(0014211038)资助
关键词
一体式膜生物反应器
污水处理
有机物去除率
污泥浓度
数学模型
Submerged membrane bioreactor
Wastewater treatment
The removal rate of organic pollutions
MLSS
Mathematical model.
