Screening and Comminution
Frank J. DeLuise, Lawrence K. Wang, Shoou-Yuh Chang, and Yung-Tse Hung

Flow Equalization and Neutralization
Ramesh K. Goel, Joseph R. V. Flora, and J. Paul Chen

Mixing
J. Paul Chen, Frederick B. Higgins, Shoou-Yuh Chang, and Yung-Tse Hung

Coagulation and Flocculation
Nazih K. Shammas

Chemical Precipitation
Lawrence K. Wang, David A. Vaccari, Yan Li, and Nazih K. Shammas

Recarbonation and Softening
Lawrence K. Wang, Jy S. Wu, Nazih K. Shammas, and David A. Vaccari

Chemical Oxidation
Nazih K. Shammas, John Y. Yang, Pao-Chiang Yuan, and Yung-Tse Hung

Halogenation and Disinfection
Lawrence K. Wang, Pao-Chiang Yuan, and Yung-Tse Hung

Ozonation
Nazih K. Shammas and Lawrence K. Wang. Electrolysis, J. Paul Chen, Shoou-Yuh Chang, and Yung-Tse Hung

Sedimentation
Nazih K. Shammas, Inder Jit Kumar, Shoou-Yuh Chang, and Yung-Tse Hung

Dissolved Air Flotation
Lawrence K. Wang, Edward Fahey, and Zucheng Wu

Gravity Filtration
J. Paul Chen, Shoou-Yuh Chang, Jerry Y. C. Huang, E. Robert Baumann, and Yung-Tse Hung

Polymeric Adsorption and Regenerant Distillation
Lawrence K. Wang, Chein-Chi Chang, and Nazih K. Shammas

Granular Activated Carbon Adsorption
Yung-Tse Hung, Howard H. Lo, Lawrence K. Wang, Jerry R. Taricska, and Kathleen Hung Li

Advanced Physicochemical Processes in Water Reuse
Saravanamuthu Vigneswaran, Huu Hao Ngo, Durgananda Singh Chaudhary, and Yung-Tse Hung

Introduction to Sludge Treatment
Duu-Jong Lee, Joo-Hwa Tay, Yung-Tse Hung, and Pin Jing He

Index

The past 30 years have seen the emergence of a growing desire worldwide to take positive actions to restore and protect the environment from the degrading effects of all forms of pollution: air, noise, solid waste, and water. Because pollution is a direct or indirect consequence of waste, the seemingly idealistic demand for "zero discharge" can be construed as an unrealistic demand for zero waste. However, as long as waste exists, we can only attempt to abate the subsequent pollution by converting it to a less noxious form. Three major questions usually arise when a particular type of pollution has been identified: (1) How serious is the pollution? (2) Is the technology to abate it available? and (3) Do the costs of abatement justify the degree of abatement achieved? The principal intention of the Handbook of Environmental Engineering series is to help readers formulate answers to the last two questions. The traditional approach of applying tried-and-true solutions to specific pollution pr- lems has been a major contributing factor to the success of environmental engineering, and has accounted in large measure for the establishment of a "methodology of pollution c- trol. " However, realization of the ever-increasing complexity and interrelated nature of current environmental problems makes it imperative that intelligent planning of pollution abatement systems be undertaken.