Chemical Water and Wastewater Treatment

1. Front Matter

   Pages I-XI

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2. Quo Vadis Chemical Treatment?

   1. Quo Vadis Chemical Treatment?

      • Hermann H. Hahn

      Pages 1-14

3. Floc Formation

   1. Front Matter

      Pages 15-15

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   2. Optimization of Flocculation in Connection with Various Solid-Liquid Separation Processes

      • Norihito Tambo

      Pages 17-32

   3. Destabilization and Aggregation in Turbulent Pipe Flow

      • Rudolf Klute

      Pages 33-54

   4. Colloid Destabilization in the Treatment of Surface Waters Containing Colloid-Stabilizing Pollutants

      • István Licskó

      Pages 55-73

   5. Effects of Floc-Virus Association on Chlorine Disinfection Efficiency

      • Shinichiro Ohgaki, Prasang Mongkonsiri

      Pages 75-84

   6. Flocculation in Static Mixer

      • Ivan Helgesson

      Pages 85-90

4. Floc Separation

   1. Front Matter

      Pages 91-91

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   2. Pebble Matrix Filtration — A New Way of Floc Separation

      • Kenneth J. Ives

      Pages 93-103

   3. Floc Strength in Bridging Flocculation

      • Klaus Mühle, Klaus Domasch

      Pages 105-115

   4. Floc Formation and Breakup in Continuous Flow Flocculation and in Contact Filtration

      • Menahem Rebhun

      Pages 117-126

   5. Industrial Application of Weighted Flocculation: Development of the Actiflo® Clarification Process

      • F. de Dianous, E. Pujol, J. C. Druoton

      Pages 127-137

   6. Extended Coagulation for Reagent and Space Savings with Wastewater Lamella Settling

      • G. Desbos, C. Laplace, F. Rogalla

      Pages 139-150

   7. Liquid-Solid Separation by Electroflotation: An Attractive Alternative to Dissolved Air-Flotation

      • Jürgen Mayer, Linsheng Zhang, Hermann H. Hahn

      Pages 151-167

   8. Unit Operations for the Removal of Solids and their Combinations in Water Treatment

      • Heikki J. Kiuru

      Pages 169-186

5. Chemicals and Dosing Control

   1. Front Matter

      Pages 187-187

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   2. Coagulation with Prepolymerized Metal Salts

      • Hallvard Ødegaard, Joachim Fettig, Harsha C. Ratnaweera

      Pages 189-220

   3. Simultaneous Phosphate Precipitation and Particle Destabilization Using Aluminium Coagulants of Different Basicity

      • Joachim Fettig, Harsha C. Ratnaweera, Hallvard Ødegaard

      Pages 221-242

   4. The Effect of Five Coagulants on the Concentration and Distribution of Small Particles in Sewage Water

      • Lars Gillberg, Lars Eger, Svend-Erik Jepsen

      Pages 243-256

The biennial International Gothenburg Symposia on Chemical Water and Waste­ water Treatment have proven to be a unique platform for the exchange of ideas and experiences between administrators, engineers and scientists active in the fields of water supply, wastewater disposal and pollution control. The First Symposium (Gothenburg, 1984) provided a long needed survey over theory and application of chemical water and wastewater treatment. The Second Symposium (Berlin, 1986) was devoted to aspects of recycling in chemical water and wastewater technology. The Third Symposium (Gothenburg, 1988) recognised the growing need and the potentials of pretreatment. These proceedings of the 4th Symposium focus on technology transfer from chemical treatment theory to practical treatment of drinking water and industrial or domestic wastewater. The contributions are devoted to questions of floc for­ mation and floc separation as well as problems and practical solutions associated with chemicals and dosing control. Special attention is given to the combination of chemical and biological processes for nutrient removal from wastewater. It is the editors' privilege to acknowledge the invaluable help from the authors of this book. It is the editors' hope that they might convey the significance and potential of chemical treatment in solving the challenging problems water purification, wastewater disposal and pollution control.

• Abwasserreinigung
• Wasseraufbereitung
• Wasserreinigung
• drinking water
• wastewater
• wastewater treatment
• water
• water treatment
• water quality and water pollution
• biochemical engineering
• hydrogeology

• Institut für Siedlungswasserwirtschaft, Universität Karlsruhe, Karlsruhe 1, Germany

  Hermann H. Hahn, Rudolf Klute

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