采用序半连续反应器进行硝化和反硝化工艺的数学模拟  

Modeling of nitrification and denitrification in sequential fed-batch reactor

作　　者：邵友元[1] Krzysztof W.Szewczyk 李卫[1] 黄光斗[1] 

机构地区：[1]湖北工学院化学工程系,武汉430068 [2]华沙理工大学化学工程系,波兰华沙00645

出　　处：《环境污染治理技术与设备》2005年第4期32-35,共4页Techniques and Equipment for Environmental Pollution Control

基　　金：波兰国家科学委员会资助(KBN)项目

摘　　要：研究了生物废水处理应用于序半连续式反应器(SFBR)工艺中的微生物生长、硝化和反硝化动力学。基于活性污泥1号模型(ASMNo. 1)中的原理和结论,导出了在有氧阶段和缺氧阶段微生物生长速率、铵、硝酸盐、易生物降解基质等的反应速率及它们的物料平衡方程。在实验的基础上,对模型中的各参数采用了合适的方法进行参数估值,即:龙格库塔法解常微分方程组和黄金分割法搜索最小误差,该模型的最小误差ε≈4 799;得出了应用于本工艺中数学模型中的各动力学参数和化学计量系数,如KS 39. 997,KNO 0 .397,KNH 1 997,KOA 0 .404,KOH 0. 297, μA 0 .0026,μH 0. 207,YA 0 .24,YH. 0 6。The kinetics of growth rates of microorganisms, the rates of nitrification and denitrification which applied in biological wastewater treatment of sequential fed-batch reactor were studied. The growth rate of microorganisms, the rates of nitrification and denitrification,the rates of reaction for readily biodegradable substrate and their material balance in aerobic and anoxic period were developed, respectively, according to the principle and result in activated sludge model No. 1 (ASM1).The adequate methods of parameter estimation were adopted from the experiment results. The group of differential equations was dissolved with Ronge-Kutta method and minimum error was searched with Gold Division method on the base of experimental result. The minimum error ε was about 4.799. The value of kinetics parameters and stoichiometric coefficient such as μ_A、μ_H、Y_A 、Y_H 、K_S 、K_ NO 、K_ NH、K_ OA、K_ OH in the model were estimated and parameters in the model were estimated from the result of the experiment.

关 键 词：连续反应器 数学模拟 硝化工艺 活性污泥1号模型 常微分方程组 龙格-库塔法 化学计量系数 最小误差 微生物生长 黄金分割法 动力学参数 半连续式 废水处理 生长速率 平衡方程 反应速率 生物降解 参数估值 数学模型 反硝化 

分 类 号：X505[环境科学与工程—环境工程] TQ324.9[化学工程—合成树脂塑料工业]