In the past, industrial wastewater treatment primarily focused on the removal of BOD and suspended solids. In recent years, however, the focus has changed to aquatic toxicity, priority pollutants, and volatile organics. This required changes in how we design and operate biological treatment plants. Many existing plants must be retrofitted. New approaches to meet new requirements are discussed in detail.
The authors, with a combined experience of sixty years, have presented case studies for a wide variety of industrial wastewaters including pulp and paper, food processing, chemical and pharmaceuticals, and textile wastewaters. Data interpretation and process design are developed through the use of seventeen examples. Procedures for the laboratory and pilot plant generation of process design data are presented. Emphasis is placed on meeting the many new regulations governing industrial wastewater discharges.
Characterization and Pretreatment of Industrial Wastewater
Principles of Biological Oxidation -
Kinetics of Organics Removal
Bioinhibition of the Activated Sludge Process
Effect of Temperature on the Activated Sludge Process
Control of Activated Sludge Quality
Stripping of Volatile Organics
Nitrification and Denitrification
Oxygen Transfer and Aeration
Activated Sludge Processes Final Clarification
Effluent Suspended Solids Control
Biological Sludge Disposal
Laboratory and Pilot Plant Procedures for Development of Process Design Criteria Index