Sludge bulking predetermining method by activated sludge process in sewage treating process

Abstract

The invention relates to a sludge bulking predetermining method by an activated sludge process in a sewage treating process, comprising the following steps: establishing a sludge bulking symptom database; analyzing key off-line data by means of the expert knowledge; simply classifying the current working condition; carrying out corresponding treatment aiming at different working conditions, wherein, the sludge bulking symptom database establishment comprises the primary data set collection; recording the stored process history data through an automatic control system to obtain the primary data set of the sludge bulking symptom database; determining the structure of the database and a sludge bulking symptom attribute; analyzing the sewage treating process data by means of the mastered expert knowledge; and utilizing on-line process data which can dynamically reflect the sludge bulking symptom information to serve as the sludge bulking symptom attribute. By combining the expert knowledge and a data drive method, the method of the invention has the advantages that qualitative data, quantitative data, the off-line data and the on-line data can be comprehensively analyzed, the sludge bulking can be accurately predetermined, the occurrence frequency of the sludge bulking is reduced, the safe and stable operation of a sewage treating system is ensured, and the system maintenance expense is lowered.

Description

technical field [0001] The invention relates to a sewage treatment technology, in particular to a method for predicting sludge expansion in activated sludge process sewage treatment process Background technique [0002] With the continuous acceleration of urbanization and the rapid development of industry, the discharge of urban sewage and industrial sewage in my country has increased year by year, and the situation of water pollution prevention and control is extremely severe. As the core of the water pollution prevention and control system, the sewage treatment plant plays a very important role. Reducing the occurrence of abnormal conditions in sewage treatment plants, especially serious abnormal conditions, and ensuring their reliable and stable operation are of great significance to the sustainable use of resources and environmental protection. [0003] Sludge bulking is one of the most serious abnormal working conditions faced by activated sludge process wastewater tre...

AI Technical Summary

Problems solved by technology

[0009] (3) The hazard is serious and difficult to control

[0011] (1) Most of the domestic urban pipe network construction adopts the combined rain and sewage system, the composition of the incoming water is relatively complex, and the incoming water load fluctuates frequently and greatly;

[0012] (2) Some enterprises often discharge unqualified industrial sewage directly, which increases the possibility of sludge bulking to a certain extent

[0013] (3) Due to lack of funds, domestic sewage treatment plants have relatively few instrument configurations and relatively weak detection capabilities. Many key water quality parameters cannot be measured online, which increases the difficulty of predicting sludge bulking

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