Intelligent coagulation dosing method and device for water purification plant

Abstract

The invention discloses an intelligent coagulation dosing method and device for a water purification plant, belongs to the technical field of coagulation in water purification production, and aims to solve the problems of poor anti-interference capability, high requirements on water quality and process conditions, troublesome adjustment and difficult maintenance for various water quality parameters. The method is based on collection of water plant operation big data. Non-linear modeling and non-linear prediction are carried out on the coagulation dosing process, the influence of system time lag is reduced through prediction control, the influence of raw water quality disturbance and model mismatch on a control system is eliminated, the dosing control precision and the robustness of the system are improved, and the purpose of intelligent dosing is achieved. The control model can overcome the main problem that an existing automatic dosing system is inaccurate in prediction, has high self-adaptive capacity, explores a new way for water plant coagulation dosing control, provides reliable basis for implementation of next coagulation dosing control, meanwhile, the dosing optimization method of the scheme is applied, the water quality assurance rate is increased, the labor is saved, and the coagulant cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of coagulation in water purification production, in particular to an intelligent coagulation dosing method and device for a water purification plant. Background technique [0002] Coagulation is the core link in the tap water production process, which directly affects the quality of effluent water. The most important factor affecting the coagulation effect is the dosage of coagulant. Most of the coagulants used at present are aluminum salts. Studies have shown that , Excessive concentration of aluminum ions in water will affect human health, and have adverse effects on water quality and water delivery systems. From this perspective, excessive coagulant dosage should be prevented. On the other hand, coagulant agents for water purification The cost is the second largest factor in the cost of water production after the electricity fee. The amount of coagulant dosage directly affects the cost of water production...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an intelligent coagulation dosing method and device for a water purification plant, which solves the problem of cross factors for various water quality parameters, poor anti-interference ability, high requirements for water quality and process conditions, and adjustment problems. Troublesome calibration and difficult maintenance, which limit the promotion and application of this technology

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