Water Science & Technology

Volume 23 Number 4-6

Contents

Kinetics of Nitrification Denitrification Biological Excess Phosphorus Removal Systems—A Review

M. C. Wentzel, G. A. Ekama and G. v. R. Marais ..........555–565

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Evaluation of Biochemical Models for Biological Excess Phosphorus Removal

M. C. Wentzel, L. H. Lötter, G. A. Ekama, R. E. Loewenthal and G. v. R. Marais ..........567–576

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The Concept of Phosphorus Storage Capability and its Implications for Design of Systems for Enhanced Biological Uptake of Phosphate

Movva Reddy ..........577–584

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The Effect of Organic Compounds on Biological Phosphorus Removal

Z. H. Abu-ghararah and C. W. Randall ..........585–594

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A New Procedure for Screening Feasibility of Biological Phosphorus Removal for a Wastewater

Shin Joh Kang, Timothy J. Astfalk, Christopher J. Englert and Royce R. Deline ..........595–602

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Bio-P Removal from High Phosphorus Wastewaters: Pilot Testing Confirms Applicability of the Process

G. Filauro, R. Prati, C. Marchesini and A. Coppi ..........603–610

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Combined Chemical and Biological Removal of Phosphate in Activated Sludge Plants

Laurraine H. Lötter ..........611–621

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Phosphorus Fractionation of Activated Sludges from Modified Bardenpho Processes with and without Chemical Precipitant Supplementation

David W. de Haas and Harma A. Greben ..........623–633

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Phosphorus Fixation in the Sludge Treatment System of a Biological Phosphorus Removal Process

N. Fujimoto, T. Mizuochi and Y. Togami ..........635–640

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Basic Studies on Phosphorus Removal by the Contact Aeration Process Using Iron Contactors

S. Haruta, T. Takahashi and T. Nishiguchi ..........641–650

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High Biological Nutrient Removal from Domestic Wastewater in Combination with Phosphorus Recycling

J. H. Rensink, E. Eggers and H. J. G. W. Donker ..........651–657

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The Simultaneous Chemical Precipitation of Ammonium and Phosphate in the form of Magnesium-Ammonium-Phosphate

R. Schulze-Rettmer ..........659–667

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Capabilities of Biological Nitrogen Removal Processes from Wastewater

M. Henze ..........669–679

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Development of New Nitrogen Removal System Using Nitrifying Bacteria Immobilized in Synthetic Resin Pellets

Kazuhiro Tanaka, Minoru Tada, Takashi Kimata, Shouji Harada, Yuhko Fujii, Tamotu Mizuguchi, Naomichi Mori and Hiroyoshi Emori ..........681–690

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Biological Denitrification of Waste Water from Wet Lime–Gypsum Flue Gas Desulphurization Plants

G. Holm Kristensen and S. E. Jepsen ..........691–700

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Denitrification with Biogas as External Carbon Source

M. Werner and R. Kayser ..........701–708

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Practical Performance of Nitrogen Removal in Small-Scale Sewage Treatment Plants Operated in Intermittent Aeration Mode

Jun Nakajima and Mitsumi Kaneko ..........709–718

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Enhanced Nutrient Removal in Porous Biomass Carrier Sequencing Batch Reactor (PBCSBR)

Hang-Sik Shin and Hung-Suck Park ..........719–728

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Nutrient Removal in a Reed Bed System

R. Haberl and R. Perfler ..........729–737

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Study on Development of Phosphorus Removal Process by Contact Filtration

Kazuhiro Tanaka, Masanobu Aoki, Shousaku Takahashi, Shuichi Chida, Tsutomu Yasuda, Kazuo Takagi, Hiromichi Yumoto and Kazumasa Kasakura ..........739–745

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Microbiological and Genetic Aspects of the Synthesis of Polyphosphate by Species of Acinetobacter

R. C. Bayly, A. Duncan, J. W. May, M. Schembri, A. Semertjis, G. Vasiliadis and W. G. C. Raper ..........747–754

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Population Dynamics of Bacteria for Phosphorus Removal in Sequencing Batch Reactor (SBR) Activated Sludge Processes

M. Okada, A. Murakami, C. K. Lin, Y. Ueno and T. Okubo ..........755–763

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Influence of Nitrate on the Bacterial Flora of Activated Sludge under Anoxic Condition

Jun-ichi Takeuchi ..........765–772

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Purification of Waste Water from the Paris Conurbation: Biological Removal of Nitrogen at the Valenton Purification Plant

Michel Gousailles, Jean-Marie Rovel and Roger Nicol ..........773–779

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Design Considerations for Nutrient Removal Activated Sludge Plants

A. R. Pitman ..........781–790

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Extension of a Large Trickling Filter Plant for Combined Nitrogen and Phosphorus Removal (Ejby Mølle Wastewater Treatment Plant, Odense, Denmark)

Knud Christensen ..........791–800

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Energy Saving, High Biological Phosphorus Removal and Improvement of Sludge Settleability on Full-Scale Anaerobic–Aerobic Activated Sludge Process

Toshihiro Tanaka, Masayoshi Kitagawa and Eiichi Ohkubo ..........801–810

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Pre-Precipitation Facilitates Nitrogen Removal without Tank Expansion

Ingemar Karlsson and Gunnar Smith ..........811–817

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Full-Scale Experiences with Phosphate Crystallization in a Crystalactor®

E. Eggers, A. H. Dirkzwager and H. van der Honing ..........819–824

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First Practical Experiences with Submerged Rope-Type Bio-Film Reactors for Upgrading and Nitrification

T. H. Lessel ..........825–834

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Bulking Sludge Control—Progress, Practice and Problems

Orris E. Albertson ..........835–846

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A Knowledge-Based Framework for the Diagnosis of Sludge Bulking in the Activated Sludge Process

W. T. Chan and Lawrence C. C. Koe ..........847–855

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The Effect of Contact Tank Operation on Bulking Sludge and Biosorption Processes

J. H. Rensink and H. J. G. W. Donker ..........857–866

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The Selector Effect on Filamentous Bulking in Long Sludge Age Activated Sludge Systems

D. M. D. Gabb, D. A. Still, G. A. Ekama, D. Jenkins and G. v. R. Marais ..........867–877

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The Effect of Surfactants on Nocardia Foaming in Activated Sludge

Chu-Fei Ho and David Jenkins ..........879–887

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The Roles of Intracellular Organic Storage Materials in the Selection of Microorganisms in Activated Sludge

T. Kohno, K. Yoshina and S. Satoh ..........889–898

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Role of Glycogen as an Intracellular Carbon Reserve of Activated Sludge in the Competitive Growth of Filamentous and Non-Filamentous Bacteria

Y. Matsuzawa and T. Mino ..........899–899

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Changes in Microfauna at the Time of Occurrence and Disappearance of Filamentous Bulking

M. Terashi and S. Hamada ..........907–916

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Effect of Anaerobic Stabilization of Activated Sludge on its Production under Batch Conditions at Various S_o/X_o Ratios

P. Chudoba, J. J. Chevalier, J. Chang and B. Capdeville ..........917–926

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Filamentous Bulking and Hindrance of Phosphate Removal Due to Sulfate Reduction in Activated Sludge

Ryoko Ikemoto Yamamoto, Tomoaki Komori and Saburo Matsui ..........927–935

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Use of Isoprenoid Quinone Profiles to Study the Bacterial Community Structure and Population Dynamics in the Photosynthetic Sludge System

A. Hiraishi, Y. Morishima and H. Kitamura ..........937–945

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Respiratory Inhibition of Sphaerotilus by Iron Compounds and the Distribution of the Sorbed Iron

Kenji Kato and Futaba Kazama ..........947–954

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Isolation of Microorganisms Capable of Lysing the Filamentous Bacterium, “Type 021N” (Studies on Lytic Enzyme against the Filamentous Bacterium, “Type 021N”, Screening Studies)

J. Yaguchi, K. Chigusa and Y. Ohkubo ..........955–962

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Control of the Growth of Filamentous Microorganisms Using Predacious Ciliated Protozoa

Y. Inamori, Y. Kuniyasu, R. Sudo and M. Koga ..........963–971

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Pilot Plant Study on Microaerobic Self-Granulated Sludge Process (Multi-Stage Reversing Flow Bioreactor: MRB)

M. Takahashi and S. Kyosai ..........973–980

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Self-Immobilization of Aerobic Activated Sludge—A Pilot Study of the Aerobic Upflow Sludge Blanket Process in Municipal Sewage Treatment

K. Mishima and M. Nakamura ..........981–990

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Decomposition and Removal of Musty Odor Producing Phormidium tenue by Bacteria and Smaller Animals

Y. Inamori, T. Ouchiyama, N. Sugiura and R. Sudo ..........991–999

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Population Dynamics of Phenol Degrading Microorganisms in Activated Sludge Process under the Stress of Phenolic Wastewater

M. Okada, T. Nakamura, H. Ito and A. Murakami ..........1001–1010

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Activated Sludge Modelling and Simulation

Willi Gujer and Mogens Henze ..........1011–1023

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Denitrification Kinetics in Biological Nitrogen and Phosphorus Removal Activated Sludge Systems Treating Municipal Waste Waters

J. A. Clayton, G. A. Ekama, M. C. Wentzel and G. v. R. Marais ..........1025–1035

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The Hydraulics of Final Settling Tanks

P. Krebs ..........1037–1046

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Dynamic Behavior Of Cr(III) in Activated Sludge

Akio Imai and Earnest F. Gloyna ..........1047–1056

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Characterisation of Domestic Wastewater for Mathematical Modelling of the Activated Sludge Process

U. Sollfrank and W. Gujer ..........1057–1066

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Soluble Microbial Product Formation in Biological Systems

V. J. Boero, W. W. Eckenfelder, Jr. and A. R. Bowers ..........1067–1076

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Assessment of the Initial Inert Soluble COD in Industrial Wastewaters

F. Germirli, D. Orhon and N. Artan ..........1077–1086

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Computer Aided Design of Sequencing Batch Reactors Based on the IAWPRC Activated Sludge Model

J. Oles and P. A. Wilderer ..........1087–1095

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Kinetic Model of Sequencing Batch Activated Sludge Process for Municipal Wastewater Treatment

H. Nakazawa and K. Tanaka ..........1097–1106

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Time Series Analysis Models of Activated Sludge Plants

V. Novotny, H. Jones, X. Feng and A. Capodaglio ..........1107–1116

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Effects of Immobilization Conditions on the Nitrification Treatability of Entrapped Cell Reactors Using the PVA Freezing Method

H. Myoga, H. Asano, Y. Nomura and H. Yoshida ..........1117–1124

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Utilization of Microorganisms Immobilized with Magnetic Particles for Sewage and Wastewater Treatment

H. Ozaki, Z. Liu and Y. Terashima ..........1125–1136

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