A fuzzy logic based coagulant real time control scheme for water purification system

Water purification process involves many complex physical and chemical phenomena, and thus it is difficult to realize optimum coagulant dosing control with traditional methods. In this paper, the feasibility of applying a fuzzy logic inference to determine optimum chemical dosage and to control the...

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Veröffentlicht in:2009 International Conference on Mechatronics and Automation S. 2123 - 2127
1. Verfasser: Bai Hua
Format: Tagungsbericht
Sprache:Englisch
Veröffentlicht: IEEE 01.08.2009
Schlagworte:
Chemical processes
coagulant dosing rate control
Coagulation
Control systems
fuzzy control
Fuzzy logic
fuzzy logic inference
Inference algorithms
Logic testing
Programmable control
Purification
Real time systems
Water
water purification
ISBN:1424426928, 9781424426928
ISSN:2152-7431
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Zusammenfassung:Water purification process involves many complex physical and chemical phenomena, and thus it is difficult to realize optimum coagulant dosing control with traditional methods. In this paper, the feasibility of applying a fuzzy logic inference to determine optimum chemical dosage and to control the performance of coagulation process was discussed. Prior to field test, a fuzzy logic based control scheme, which can realize the optimum coagulant dosing rate control according to the variety of raw water characteristic, was designed and applied to a middle-scale water treatment process. An online self-adjustment of coagulant dosing set point based on fuzzy logic inference algorithm was proposed and programmed by SIEMENS SIMATIC200 PLC. Field test indicated that the proposal control scheme is validated and has considerable practical value.
ISBN:1424426928
9781424426928
ISSN:2152-7431
DOI:10.1109/ICMA.2009.5246439