Design and Operation of Large Wastewater Treatment Plants VII

About this book

The highly successful and significant series of conferences organised by the IAWQ on large wastewater treatment plants continues to collect the best work on this topic from around the world. Designers, managers and scientists from over 35 countries gathered in Vienna to share their knowlege and experience on all aspects of the design and operation of large treatment plants and the best papers have been selected for these proceedings. Particular attention was paid to nutrient removal, including the upgrading of existing plants to meet higher standards, but papers also consider general design and management concepts, clarification, aeration, control and automation and sludge management. As the growing world population becomes increasingly concentrated in large cities, imposing severe challenges to water quality management, and the quality standards sought are driven to ever more stringent levels by our improved knowledge of the needs of the water environment, the optimisation of large wastewater treatment plants will remain a crucial objective.

Contents

Status of construction and operation of large wastewater treatment plants in South Korea (I.S. Kim et al .). Nutrient Removal: Inhibition . Steps towards the upgrading of a municipal WWTP affected by nitrification inhibiting compounds - a case study (P. Schweighofer et al .). Nutrient Removal: Upgrading Existing Plants . Adaption of the main waste water treatment plant in Vienna to meet Austrian emission regulations (H. Kainz, H. Hofstetter). Biological phosphorus removal at Stratford upon Avon, UK: the effect of influent wastewater characteristics on effluent phosphate (J. Upton et al .). Nutrient Removal: External Carbon Sources . Long-term experiences with external carbon sources for nitrogen removal (U. Nyberg et al .). Nutrient Removal: Solids Separation Problems . Possibilities for increased nutrient removal with a final filtration stage (M. Rothman, J. Hultgren). Nutrient Removal: Fixed Film Application . Full-scale evaluation of an integrated fixed-film activated sludge (IFAS) process for enhanced nitrogen removal (C.W. Randall, D. Sen). Secondary Clarifiers . Thickening in an activated sludge process clarifier (S. Halttunen). Aeration: Operation and Control . Practical aspects of the oxygen supply/sludge activity relationship (H.B. Tench). Control and Automation . UV absorption as control-parameter for biological treatment plants (N. Matsche, K. Stumwohrer). Sludge Treatment and Disposal . Two examples of thermal drying of sewage sludge (M. Hassebrauck, G. Ermel). Poster . Application and experience with expert systems for the operation of waste water treatment plants (G. Ladiges, A. Mennerich).

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