Foreword by Conference ChairmenOpening AddressResponseSession I Instrumentation, Automation and Control for Waste-water Treatment Systems 1. The DGWE's Contribution to the Promotion of Instrumentation, Control and Automation for Waste-water Treatment Systems 2. United States Environmental Protection Agency Activities in Instrumentation, Automation and Control 3. A Dutch Approach Towards Sewage Treatment and Automation of Sewage Treatment Plants 4. Water-Quality Control, Treatment and Automation of River Systems 5. Effluent Control and Instrumentation in Europe 6. Potential Computer Use in Coordinating the Combined Sewer-Collection Systems with Storage Reservoirs, Treatment Plants, Receiving Streams and Power Demands for Flood and Pollution Control 7. The Construction Industry Research and Information Association Optimization Study of Sewage Treatment: Its Significance for the Control of Treatment Works 8. Instrumentation and Control Problems in the Design of a Modern Sewage Works 9. State Development of Waste-water Treatment Plant Performance Surveillance and Evaluation Systems 10. Problems Involved in Automating the Waste-water Treatment Plant 11. Automatic Control of the Activated-Sludge Process and Potential Savings in Treatment Costs 12. Operational Control of the Activated-Sludge Process Return-Sludge-Flow Control Discussion, Session ISession II Instrumentation for Measurement of Waste-water Characteristics 13. Instrumentation and Control in Sewage Treatment 14. Sludge Solids Concentration and Velocity-Flow Measurement Using Electrical Noise Techniques 15. Continuous Monitoring of Suspended Solids, Temperature, DO, NH3 and NO3 in Activated-Sludge Treatment 16. Measurement of Sludge Density by Ultrasonic Wave 17. The Development of a System for the Automatic Withdrawal of Raw Sludge from a Primary Sedimentation Tank 18. Experience in Instrumental and Automated Determination of Organic Matter in Sewages and Effluents 19. The Measurement of Total Organic Carbon (TOC) in Waters and Effluents 20. Hydromat. A Continuous COD-Measuring Instrument 21. Quick-Time Instrumental Measurements of Waste-water Organic Characteristics 22. Magnetic Flow Meters (A New Sludge Meter) 23. Flow Measurement 24. Pneumatic and Hydraulic Pump-Control Device 25. Dissolved Oxygen Control of Activated-Sludge Process 26. Dissolved Oxygen Control for the Activated-Sludge Process 27. Automatic Control of Oxford Diffused Air Aeration Plant with Dissolved Oxygen Probes 28. Automatic On-line Selective-Ion Monitor 29. Instrumental Measurement of Suspended Solids for Activated-Sludge Plant Control Discussion, Session (II)Session III Control Systems for Waste-water Treatment (1) 30. Development of Control Strategies for Waste-water Treatment Plants 31. Possibilities for the Control of an Activated-Sludge Treatment Plant 32. Carbarns Pollution-Control Works: Process Control in Waste-water Treatment 33. A Unified Approach to Process Control Systems 34. Commercially Available Proven Measuring and Control Systems-A Critical Review of US Practice 35. Planning a Necessary Prerequisite to Automation Design 36. Installation of Field Equipment in Automated Process Control Systems 37. Load Balancing at Greater London Council Works 38. Automatic Flow Balancing 39. Process Control for Biological Treatment of Organic Industrial Waste-waters 40. Control and Stability of Industrial, Activated-Sludge Plants Subject to Toxic or Inhibitory Waste Load Fluctuation Discussion, Session IIISession IV Control Systems for Waste-water Treatment (2) 41. Activated-Sludge Process Control: Instrumentation and Computer 42. The Design of a Flexible Control System for an Activated Sludge Plant 43. Emphasis of Hydraulic Factors in Biological Process Control 44.