Water Science & Technology

Volume 17 Number 2-3

Contents

Removal of Soluble Substrates in Fixed Films

Jes la Cour Jansen and Poul Harremoës ..........1–14

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Influence of Particulate Organics on the Removal of Dissolved Organics in Fixed-Film Biological Reactors

E. Särner and S. Marklund ..........15–26

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Competition in Biofilms

O. Wanner and W. Gujer ..........27–44

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The Effect of Load Fluctuations on the Effluent Concentration Produced by Fixed-Film Reactors

Bruce E. Rittmann ..........45–52

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Evaluation of Temperature Effects on Trickling Filter Plant Performance

A. Adin, E. R. Baumann and F. D. Warner ..........53–67

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The Role of an Anaerobic Stage on Biological Phosphorus Removal

T. Fukase, M. Shibata and Y. Miyaji ..........69–80

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The Influence of Extended Anaerobic Retention Time on the Performance of Phoredox Nutrient Removal Plants

A. Gerber and C. T. Winter ..........81–92

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Location of Phosphorus in Activated Sludge and Function of Intracellular Polyphosphates in Biological Phosphorus Removal Process

Takashi Mino, Tomonori Kawakami and Tomonori Matsuo ..........93–106

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Modeling Phosphate Sludge Production

R. G. Veldkamp ..........107–119

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Phosphorus Removal from Wastewater by the Crystallization Method

Isao Joko ..........121–132

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Phosphate Removal by Crystallization in a Fluidized Bed

J. C. van Dijk and H. Braakensiek ..........133–142

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Batch Anaerobic Methanogenesis of Phenolic Coal Conversion Wastewater

Phillip M. Fedorak and Steve E. Hrudey ..........143–154

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Thermophilic Anaerobic Contact Digestion of Palm Oil Mill Effluent

A. Ibrahim, B. G. Yeoh, S. C. Cheah, A. N. Ma, S. Ahmad, T. Y. Chew, R. Raj and M. J. A. Wahid ..........155–166

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Oxidation of Sulfide and Thiosulfate and Storage of Sulfur Granules in Thiothrix from Activated Sludge

P. H. Nielsen ..........167–181

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Kinetic Studies of the Microbiological Conversion of Sulphate to Hydrogen Sulphide and their Relevance to Sulphide Generation within Sewers

G. A. Holder, G. Vaughan and W. Drew ..........183–196

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Mixing and Detention Time Distribution in Activated Sludge Tanks

H. Bode and C. F. Seyfried ..........197–208

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Influence of Macromixing on Organic Carbon Uptake and Solids Production by Aerobic Suspended Biomass

S. Elmaleh, T. I. Yoon and A. Grasmick ..........209–219

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An Equalization Control Strategy for Activated Sludge Process Control

P. L. Dold, H. O. Buhr and G. v. R. Marais ..........221–234

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The A-B Process: A Novel two Stage Wastewater Treatment System

A. I. Versprille, B. Zuurveen and Th. Stein ..........235–246

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Flexible Modelling of the Activated Sludge System – Theoretical and Practical Aspects

M. S. Sheffer, M. Hiraoka and K. Tsumura ..........247–258

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Determination of Kinetic Constants of Activated Sludge Microorganisms

J. S. Čech, J. Chudoba and P. Grau ..........259–272

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The Potential use of Enzymes for Removal of Aromatic Compounds from Water

S. W. Maloney, J. Manem, J. Mallevialle and F. Fiessinger ..........273–278

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Development of Pollutant Specific Models for Toxic Organic Compounds in the Activated Sludge Process

Andrew T. Watkin and W. Wesley Eckenfelder, Jr. ..........279–289

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The Kinetic Analysis of Bod and Nitrogen Removal in an Oxidation Ditch

Y. Terashima and M. Ishikawa ..........291–302

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Steady State Measurement of Oxygenation Capacity

Kees de Korte and Peter Smits ..........303–311

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Removal of Iron Cyanide from Gold Mill Effluents by Ion Exchange

D. T. Vachon ..........313–324

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Total Effluent Treatment and Rinse Water Reclamation in a Semiconductor Device Manufacturing Facility

Peter S. Cartwright ..........325–336

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Development of a New Process for Treating Uranium Mining Effluents

P. M. Huck, W. B. Anderson and R. C. Andrews ..........337–350

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Dynamics of Nitrification in a Biological Fluidized Bed Reactor

Slawomir W. Hermanowicz and Jerzy J. Ganczarczyk ..........351–366

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Modeling, Optimization and Design of Fluidized Beds for Biological Denitrification

Th. J. Nieuwstad ..........367–383

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Mathematical Model of Simultaneous Organic Oxidation, Nitrification, and Denitrification in Rotating Biological Contactors

Yoshimasa Watanabe, Sumio Masuda, Kiyoshi Nishidome and Chalermraj Wantawin ..........385–397

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The Application of Predenitrification Nitrification Technology for Trace Contaminant Control

H. Melcer and S. G. Nutt ..........399–408

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Elevated Nitrite Occurrence in Biological Wastewater Treatment Systems

J. E. Alleman ..........408–419

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Single Sludge Anoxic-Aerobic Systems for Biological Treatment of Coke Plant Wastewaters

M. Beccari, A. C. Di Pinto, R. Passino, R. Ramadori and V. Tandoi ..........421–432

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