废水生物处理系统对脉冲负荷的动态响应分析

以废水生物处理的推流式活性污泥法为研究对象，在废水处理系统为线性时不变系统的简化条件下，分析了矩形脉冲负荷对废水生物处理系统的动态影响。分析结果表明，在矩形脉冲负荷的作用下，废水处理系统出水的水浓度的增加值与脉冲幅度成正比，与脉冲持续时间、曝气池污泥浓度、污泥回流比、有机物最大比降解速率和米氏常数等因素有关，出水浓度增加值达到最大值后将逐步降低。分析方法也表明，可以模拟在冲击负荷作用下的废水处理系

Dynamic response of biological wastewater treatment systems to pulse loads

In this paper plug\|flow actived sludge process was selected as the object to study.Dynamic effects of rectangular pulse load upon the wastewater treatment system were analyzed under the condition that the wastewater treatment system was simplified to be a linear time\|invariant system.The results show that increased the concentration of effluent from biological wastewater treatment process proportional by to the amplitude of pulse load and the amount of increasing was related to duration of the pulse load,sludge concentration in the aeration tank,sludge recirculation ratio,maximum rate of specific substrate utilization and Michaelis\|Menten constant;then the effluent concentration decrease step by step after reaching to a maximum value.The analytical method and results manifest that the process of the dynamic responses of the wastewater treatment system to the shock loads can be simulated for readjusting the run of system.