A fault identification method for sludge bulking based on recursive rbf neural network

Abstract

A sludge bulking fault identification method based on a recursive RBF neural network belongs to the field of control and also belongs to the field of water treatment. Aiming at the problems that sludge bulking is difficult to accurately detect and the cause of sludge bulking is difficult to identify in the process of sewage treatment, the present invention designs a sludge bulking fault identification method based on recursive RBF neural network. The soft-sensing model of the sludge volume index SVI completes the real-time prediction of the sludge volume index SVI concentration. Once the occurrence of sludge bulking is detected, the fault variable identification CVI algorithm is used to accurately identify the fault variables that cause sludge bulking. The method can control the sewage treatment process in advance according to the fault variable, reducing the occurrence rate of sludge bulking.

Description

technical field [0001] Based on the fact that sludge bulking is easy to occur in the activated sludge process in the sewage treatment process and the cause is not easy to identify, the present invention designs a sludge bulking fault identification method by using the recursive RBF neural network, and realizes the early effective sludge bulking after fault variable identification Adjustment; sewage treatment sludge volume index SVI is an important parameter to characterize sludge bulking, the relationship between sludge volume index SVI and process variables in sewage treatment process is the basic link to realize effective prediction of sludge bulking; and, identification of sludge bulking failure It has an important impact on the stable and safe operation of sewage treatment. It is an important branch of the advanced manufacturing technology field. It belongs to both the control field and the water treatment field. Therefore, identification of sludge bulking faults is of gre...

AI Technical Summary

Problems solved by technology

However, the problem of sludge bulking has always been a thorny problem in the activated sludge process. Due to the abnormal separation of sludge and water, the sewage treatment process fails

It can be seen that sludge bulking is a common problem faced by sewage treatment plants at home and abroad. Scholars from various countries have done a lot of research on the prevention and control of sludge bulking. Although some progress has been made, so far, there is no research on sludge bulking. effective control measures; the point is that once sludge bulking occurs, the reason is not easy to explore, and it takes a long time to deal with the failure of the process

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