Pastre A, Mulholland M, Brouckaert C J, Buckler C A, Le Lann M V, Roustan M, Naidoo D, Mabeer V
Pollution Research Group, School of Chemical Engineering, University of Natal, Durban, South Africa.
Water Sci Technol. 2002;46(9):103-8.
The Umgeni Water Wiggins water treatment plant feeds the southern areas of Durban in South Africa and has a maximum treatment capacity of about 350 Ml/d. Two interconnected reservoirs at this facility hold treated water before it enters the distribution network. Because of the variable demand, the reservoir levels and residence times undergo considerable variation. This has a strong influence on the free chlorine concentration in the water leaving the reservoir, which should be 0.8 to 1.2 mg/l, to ensure an adequate disinfection potential within the network. This paper describes a model which accounts for the observed variations of chlorine concentration, and will form the basis of a predictive controller for the chlorine concentration in the outlet.
乌姆盖尼水务威金斯水处理厂为南非德班的南部地区供水，最大处理能力约为350百万升/天。该设施有两个相互连通的蓄水池，在处理后的水进入配水管网之前储存这些水。由于需求变化，蓄水池水位和停留时间会有显著变化。这对离开蓄水池的水中的游离氯浓度有很大影响，游离氯浓度应为0.8至1.2毫克/升，以确保管网内有足够的消毒能力。本文描述了一个模型，该模型解释了观察到的氯浓度变化，并将作为出水口氯浓度预测控制器的基础。
