Chemical Water and Wastewater Treatment II

The Gothenburg Symposia and their proceedings cover urgent international environmental issues: quality assurance for drinking water and pollution control in wastewater. In times of limited clean water resources in most densely populated areas and growing concern for environmental pollution, the Gothenburg Symposia discuss practical solutions for water and wastewater treatment.

Floc Formation.- Particle and Phosphate Removal Mechanisms with Prepolymerized Coagulants.- Model System Studies of Formation and Properties of Flocs Obtained with Cationic Polyelectrolytes.- Amphophilic Cationic Polymers as Both Flocculants and Depollutants.- Coagulation and Flocculation in Alkaline Media — The Role of Ca2+ and Mg2+ Ions.- The Effects of Temperature, pH and Rapid Mixing Gradient on the Formation of Particles in Treatment of Humic Water.- Floc Separation.- Effectivity of Liquid-Solid Separation as a Function of Apparatus Characteristics and Wastewater Quality.- An Analysis of Floc Separation Characteristics in Chemical Wastewater Treatment.- Characterization of Sludges from Wastewater Coagulation with Polymeric Aluminium Salts.- The DENSADEG — A New High Performance Settling Tank.- Chemicals — Dosing Control.- Chemical Dosing Control — Physical and Chemical Boundary Conditions.- Fundamental Considerations in Use of the Streaming Current Detector for Chemical Dose Control.- Particle Separation in Wastewater Treatment.- Comparison of Various Commercially Available Polyaluminium Chlorides (PAC).- Polyaluminium Silicate Sulphate — A New Coagulant for Potable and Wastewater Treatment.- Drinking Water Treatment.- Dissolved-Air Flotation: Theory and Practice.- Experimental Studies on the Kinetics of Flotation.- Algae, Coagulation, and Ozonation.- Improvements in Membrane Microfiltration Using Coagulation Pretreatment.- Wastewater Treatment.- Characterization of Wastewater: The Effect of Chemical Precipitation on the Wastewater Composition and its Consequences for Biological Denitrification.- Pre-precipitation Followed by Biological Denitrification Supported by Addition of Biological or Thermal/Chemical Hydrolysis Products.- Use of Internal Carbon from Sludge Hydrolysis in Biological Wastewater Treatment.- Evaluation of Pre-precipitation in a Wastewater Treatment System for Extended Nutrient Removal.- High Rate Biofilters — Simultaneous Phosphorus Precipitation and Nitrogen Removal.- Denitrification in Submerged Filters of Nitrified Wastewater and Chemical Pre-precipitated Wastewater.- Observed Synergistic Effects of Aluminium and Iron Salts in Nutrients Removal.- Retrofitting Conventional Primary Treatment Plants for Chemically Enhanced Primary Treatment in the USA.- Experiences with Chemical Treatment in Madrid.- Trade-Offs Between Physico-Chemical Lamella Separators and Aerated Biofiltration.- Recent Developments in Wastewater Treatment.- Recent Developments in Industrial Wastewater Treatment: The Role of Physico-Chemical Processes in Metal Control.- Nitrogen Elimination from Digester Supernatant with Magnesium-Ammonium-Phosphate Precipitation.- Zeolite Filters in Wastewater Treatment Plants.- Rapid Sewage Clarification with Magnetite Particles.- Magnetic Floc Separation in Chemical Phosphate Removal.