Polito Braga C M, von Sperling M, Braga A R, Pena R T
DELT-Universidade Federal de MG, Belo Horizonte, Brazil.
Environ Technol. 2005 Dec;26(12):1393-401. doi: 10.1080/09593332608618608.
This paper presents a comparative analysis among four control strategies for the control of a combined anaerobic-aerobic wastewater treatment configuration. The anaerobic stage is an Upflow Anaerobic Sludge Blanket (UASB) reactor, whereas the aerobic stage consists of the Activated Sludge (AS) process. The control variables are solids concentration in the effluent and sludge wastage rate. The proposed control strategy is considered the most reliable among them. It is based on two cascaded PI-controllers for the solids concentration in the effluent and a look-up table for the sludge wastage rate control. Experimental and simulated results are presented.
本文对用于控制厌氧-好氧联合废水处理系统的四种控制策略进行了比较分析。厌氧阶段采用上流式厌氧污泥床(UASB)反应器,而好氧阶段由活性污泥(AS)工艺组成。控制变量为出水的固体浓度和污泥排放率。所提出的控制策略被认为是其中最可靠的。它基于两个级联的PI控制器来控制出水的固体浓度,以及一个用于污泥排放率控制的查找表。文中给出了实验和模拟结果。