WATER QUALITY CONTROLLER FOR SEWAGE TREATMENT PLANT

• Main Authors: NAGAIWA AKIHIRO, NAGAMORI YASUHIKO, TSUTSUMI MASAHIKO, YAMANAKA OSAMU, HATSUKA YUKIO
• Format: Patent
• Language: English
• Published: 12.02.2002
• Edition: 7
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

PROBLEM TO BE SOLVED: To provide a water quality controller of a sewage treatment plant capable of sufficiently grasping the characteristics of the water quality process of the sewage treatment plant and accurately controlling water quality. SOLUTION: Flow-in sewage data from a disturbance sensor 16, treating water data from water quality state sensors 171-175 and a manipulated variables from actuators 181-186 are inputted to a process value storage means 2 and stored. A process model is constructed in a sewage treatment process model identification means 3 based on information from the process value storage means 2. In an optimum manipulated variable decision means 4, the optimum manipulated variable of the actuators is obtained based on the flow-in sewage data and the treating water data by using the process model from the sewage treatment process model identification means 3.