水厂混凝剂投加量建模研究  

STUDY ON MODELING OF THE COAGULANT DOSING PROCESS OF WATER PLANT

作　　者：唐德翠[1,2] 邓晓燕[1] 朱学峰[1] 邹振裕 李展峰 罗永恒 

机构地区：[1]华南理工大学自动化学院,广东广州510641 [2]广东技术师范学院自动化学院,广东广州510635 [3]广东省佛山市水业集团有限公司沙口水厂,广东佛山528000

出　　处：《水处理技术》2010年第6期54-56,89,共4页Technology of Water Treatment

基　　金：广东省佛山市禅城区产学研项目(2008B1034)

摘　　要：通过对某水厂投药量控制以及生产数据的分析和处理,采用机理法及差分进化参数辨识法建立了混凝剂投加量的2种数学模型,并进行了检验和对比。结果表明,2种模型在低原水浊度区都较为准确可靠;在中原水浊度区,线性模型准确性优于指数模型;在高原水浊度区,指数模型准确性优于线性模型。生产过程中可将2种模型结合起来,根据原水浊度的不同分别采用不同的模型预测。将该预测值作为操作工人操作的参考值,解决了在不同操作工操作情况下混凝剂的准确投加问题,为水厂的优化运行提供了良好基础。By analyzing and dealing with the mass data and dosage control method of a waterworks,two different forms of mathematical models of the coagulant dosage have been established by means of the mechanism method and parameter identification method based on differential evolution,the prediction results of the two models have been verified and compared. The results show that the two kinds of model are relatively accurate in the low water turbidity zone; and in the middle water turbidity zone,the linear model is superior to the exponent model; on the contrary in the high turbidity zone. In the production process,both models can be combined and different model has been selected according to the different water turbidity,the output value of the model can be used as the operation reference value for workers. This is a better solution to the problem of the accuracy of coagulant dosage in the situation of different operator,and also plays a good foundation for the optimal operation,which proves to be better practical significance.

关 键 词：混凝剂投加量 机理法 参数辨识 数学模型 

分 类 号：X703.1[环境科学与工程—环境工程]