Automation of Water Resource Recovery Facilities. Water Environment Federation

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4.9.2 Artificial Neural Network Models Used for Process Modeling

       4.9.3 Artificial Neural Network Models Used for Process Control

       4.10 Control Strategies

       4.10.1 Lead–Lag Control

       4.10.2 Most-Open Valve Control

       5.0 PUMPING AND FLOW CONTROL STRATEGIES

       5.1 Process Description

       5.1.1 Well Pumping

       5.1.2 Flow Pumping

       5.1.3 Flow Splitting

       5.2 Process Variables

       5.3 Controlled Variables

       5.4 Control Strategies

       5.4.1 Well Pumping—Constant-Speed Pumps

       5.4.2 Well Pumping—Variable-Speed Pumps

       5.4.3 Flow Pumping

       5.4.4 Flow Splitting with Valves or Gates

       6.0 SCREENING, GRIT REMOVAL, AND CONVEYANCE CONTROL STRATEGIES

       6.1 Process Description

       6.1.1 Bar Screens

       6.1.2 Grit Removal

       6.1.3 Conveyance Systems

       6.2 Process Variables

       6.3 Controlled Variables

       6.4 Control Strategies

       6.4.1 Bar Screen Velocity Control

       6.4.2 Bar Screen Cleaning Control

       6.4.3 Grit Settling Velocity Control

       6.4.4 Grit Removal Control

       6.4.5 Conveyance System Control

       7.0 PRIMARY SLUDGE AND SCUM CONTROL STRATEGIES

       7.1 Process Description

       7.1.1 Sludge Removal

       7.1.2 Scum Removal

       7.2 Process Variables

       7.3 Controlled Variables

       7.4 Control Strategies

       7.4.1 Sludge Removal Control—Dedicated Pump

       7.4.2 Sludge Removal Control—Valve to Common Pump

       7.4.3 Scum Trough Operation Control

       7.4.4 Scum Pit Level Control

       8.0 ACTIVATED SLUDGE SYSTEM CONTROL STRATEGIES

       8.1 Dissolved Oxygen Control

       8.1.1 Process Description

       8.1.2 Process Variables

       8.1.3 Controlled Variables

       8.1.4 Control Strategies

       8.2 Ammonia Control

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