Table Of Content

CONTENTS OF VOLUME 29 JANUARY Notes for Contributors Editorial R. ANDREOZzI®, V. Caprio, p-Coumaric acid abatement by ozone in aqueous solution M. G. D’Amore and A. INSOLA D. LAMBERT and W. MAHER An evaluation of the efficiency of the alkaline persulphate digestion method for the determination of total phosphorus in turbid waters T. J. Wrictey® and M. Cowan Octanol partition coefficients for wetland humus Curis C. TANNER®, JoHN S. CLAYTON Effect of loading rate and planting on treatment of dairy farm and MarTIN P. UPSDELL wastewaters in constructed wetlands—I. Removal of oxygen demand, suspended solids and faecal coliforms Curis C. TANNER®, JoHN S. CLAYTON Effect of loading rate and planting on treatment of dairy farm and MartTIN P. UPSDELL wastewaters in constructed wetlands—II. Removal of nitrogen and phosphorus YING-FENG LIN and KUo-CHENG CHEN Denitrification and methanogenesis in a co-immobilized mixed culture system ROGER C. SOKOL, Effect of PCB concentration on reductive dechlorination and CHARLOTTE M. BETHONEY dechlorination potential in natural sediments and G-YULL RHEE D. Grasso, J. C. CARRINGTON, P. CHHEDA Nitrocellulose particle stability: coagulation thermodynamics and B. Kim@ Bruce C. ALLEMAN, Bruce E. LoGaNn@® Degradation of pentachlorophenol by fixed films of white rot fungi in and ROBERT L. GILBERTSON rotating tube bioreactors I. A. H. SCHNEIDER, V. MANERA NETO, Primary treatment of a soybean protein bearing effluent by dissolved A. Soares, R. L. RECH and J. RusBio air flotation and by sedimentation S. H. Isaacs@ and M. HenzeE@® Controlled carbon source addition to an _ alternating nitrification—denitrification wastewater treatment process including biological P removal J-F. KoprivNjAK, J. G. BLANCHETTE, The underestimation of concentrations of dissolved organic carbon in R. A. BOURBONNIERE, T. A. CLAIR, freshwaters A. Heyes, K. R. Lum@, R. McCrea and T. R. Moore RICHARD J. WaTTs, SUNGHO KONG, Photocatalytic inactivation of coliform bacteria and viruses in MARGARET P. OrR, GLENN C. MILLER secondary wastewater effluent and BERCH E. HENRY Ivo SaFARiK Removal of organic polycyclic compounds from water solutions with a magnetic chitosan based sorbent bearing copper phthalocyanine dye Y. S. Cao®@ and G. J. ALAERTS@® Influence of reactor type and shear stress on aerobic biofilm morphology, population and kinetics Cu. Rav-AcHA, M. KuMMEL, I. SALAMON The effect of chemical oxidants on effluent constituents for drip and A. Apin® irrigation Yves ARCAND, JALAL HAWARI and Solubility of pentachlorophenol in aqueous solutions: the pH effect SERGE R. GuioT® YERACHMIEL ARGAMAN® A steady-state model for the single sludge activated sludge system—I. Model description XV YERACHMIEL ARGAMAN® and A steady-state model for the single sludge activated sludge system—II. GREGORY PAPKOV Model application Boris ELiosov and Hydrolysis of particulate organics in activated sludge systems YERACHMIEL ARGAMAN@® STEVEN E. BUFFLAP and Sediment pore water collection methods for trace metal analysis: HERBERT E. ALLEN a review L. M. FREITAS DOS SANTOS and Novel membrane bioreactor for detoxification of VOC wastewaters: A. G. LIVINGSTON biodegradation of 1,2-dichloroethane CHARLES J. HATHAWAY and Model of Daphnia populations for wastewater stabilization ponds HEINZ G. STEFAN JUYING WANG, MANPING ZHANG, Reciprocal effect of Cu, Cd, Zn on a kind of marine alga Jicui Xu and Y1 WANG R. v. SCHULTHEssS®, M. KUHNI Release of nitric and nitrous oxides from denitrifying activated sludge and W. Guser® Nava Narkis@, RoBERT ARMON, Effect of suspended solids on wastewater disinfection efficiency by REGINA OFFER, FRIEDA ORSHANSKY and chlorine dioxide EUGENIA FRIEDLAND A. VERTACNIK, E. Prouic, S. KOZAR Behaviour of some trace elements in alluvial sediments, Zagreb and M. Juracié water-well field area, Croatia K. PYNNONEN Effect of pH, hardness and maternal pre-exposure on the toxicity of Cd, Cu and Zn to the glochidial larvae of a freshwater clam Anodonta cygnea J. StRuUS and R. VAN DEN BERG Standardized biodegradability tests: extrapolation to aerobic environments ATTILIO CONVERTI, MAURO ROovaTTI and Biological removal of phosphorus from wastewaters by alternating Marco DEL BorGHI aerobic and anaerobic conditions J. K. JHUNG and E. Cuo1 A comparative study of UASB and anaerobic fixed film reactors with development of sludge granulation Bo NEERGAARD JACOBSEN A method for quantification of Rhodococcus chlorophenolicus in activated sludge by immunofluorescence microscopy CARMEN ZAMORA-MUNOZ, Are biological indices BMPW’ and ASPT’ and their significance CARMEN E. SAINZ-CANTERO, regarding water quality seasonally dependent? Factors explaining their ANTONINO SANCHEZ-ORTEGA and variations JAVIER ALBA-TERCEDOR GERHARD STUCKI, CHI W. Yu, Microbial atrazine mineralisation under carbon limited and THOMAS BAUMGARTNER and denitrifying conditions JUAN F. GONZALEZ-VALERO WOLFGANG DRIEHAUS, REINER SEITH and Oxidation of arsenate(III) with manganese oxides in water treatment MARTIN JEKEL L. K. JANG, D. NGUYEN and G. G. GEESEY Selectivity of alginate gel for Cu vs Co L. K. JANG, D. NGUYEN and G. G. GEESEY Effect of pH on the absorption of Cu(II) by alginate gel JONATHAN W. PoTE and CHARLES L. Wax Climatic criteria for land application of municipal wastewater effluent WARREN STIVER and DONALD MACKAY Linear superposition in modelling contaminant behaviour in aquatic systems S. J. T. PoLtarp®, F. E. THOMPSON Microporous carbons from Moringa oleifera husks for water and G. L. MCCONNACHIE purification in less developed countries O. Ince, G. K. ANDERSON® Control of organic loading rate using the specific methanogenic and B. KASAPGIL activity test during start-up of an anaerobic digestion system JIAN PENG, Davip K. StEveNs® A pioneer project of wastewater reuse in China and XINGUO YIANG Davip E. RALPH and The role of bacteria in well clogging JUDITH M. STEVENSON XVI P. BauDA, C. LALLEMENT and J. MANEM Plasmid content evaluation of activated sludge MouwaMeb A. EL-Dis and Rizka K. ALI THMs formation during chlorination of raw Nile River water Research Notes K. V. THomas, P. DONKIN and Toxicity enhancement of an aliphatic petrogenic unresolved complex S. J. ROWLAND mixture (UCM) by chemical oxidation V. HeNcL, P. Mucna, A. ORLIKOVA and Utilization of ferrites for water treatment D. LESKOVA Comment Kyounc S. Ro Comment on “Degradation of non-diffusible organic matter in biofilm reactors” by Lars Rohold and Poul Harremoés Authors’ Reply Pout HARREMOES and LARS ROHOLD Authors’ Reply FEBRUARY Notes for Contributors MOHAMMAD R. HAGHIGHI PODEH, Effects of nitrophenols on acetate utilizing methanogenic systems SANJOY K. BHATTACHARYA and MINGBO Qu RONALD M. Tay.Lor, GLEN D. WATSON Comparative sub-lethal and lethal acute toxicity of copper to and M. A. ALIKHAN@® the freshwater crayfish, Cambarus robustus (Cambaridae, Decapoda, Crustacea) from an acidic metal-contaminated lake and a circum- neutral uncontaminated stream PERRY J. CERMINARA, Effect of influent oxygen concentration on the GAC adsorption of GeorGE A. SoriAL,® VOCs in the presence of BOM SPYRIDON P. Papapmmas,® MakraM T. Suan, @® MoustTaFa A. MOTELEB and THOMAS F. SPETH JYH-HERNG CHEN, LEONARD W. LION, Mobilization of adsorbed cadmium and lead in aquifer material by WILLIAM C. GHIORSE bacterial extracellular polymers and MICHAEL L. SHULER Takuo KisHino® and Relation between toxicity and accumulation of chlorophenols at Kunio KosayasH1® various pH, and their absorption mechanism in fish Bruce E. LoGAN® and Joun R. Kips Fractal dimensions of aggregates formed in different fluid mechanical environments TAIzo TsuDA, SHIGERU AOKI, Accumulation and excretion of diazinon, fenthion and fenitrothion by TOMOHIRO INOUE and MIHOKO KOJIMA killifish: comparison of individual and mixed pesticides N. Mezriout, B. BALEUx® and A microcosm study of the survival of Escherichia coli and Salmonella M. TROUSSELLIER typhimurium in brackish water M. STREAT, J. W. PATRICK and Sorption of phenol and para-chlorophenol from water using M. J. CAMPORRO PEREZ conventional and novel activated carbons B. GaRBAN, D. OLLIVoN, M. POULIN, Exchanges at the sediment—water interface in the river Seine, down- V. GAULTIER and A. CHESTERIKOFF stream from Paris S. K. SRIVASTAVA and RENU TYAGI Competitive adsorption of substituted phenols by activated carbon developed from the fertilizer waste slurry R. Borsa, A. MARTIN, V. ALONSO, Influence of different aerobic pretreatments on the kinetics of anaero- I. Garcia and C. J. Banks@® bic digestion of olive mill wastewater MILAN B. ARAMBASIC, SABRUA BJELIC and Acute toxicity of heavy metals (copper, lead, zinc), phenol and sodium GoRDANA SUBAKOV on Allium cepa L., Lepidium sativum L. and Daphnia magna St.: comparative investigations and the practical applications ABILIO AGUILAR, CARLOS Casas and Degradation of volatile fatty acids by differently enriched Juan M. Lema@® methanogenic cultures: kinetics and inhibition XVII ANIRBAN GUPTA and Enteric virus removal/inactivation by coal-based media MALAY CHAUDHURI Lipia SZPYRKOWICZ, JEREMI NAUMCZYK Electrochemical treatment of tannery wastewater using Ti/Pt and and FRANCESCO ZILI0-GRANDI® Ti/Pt/Ir electrodes Frepa R Hawkes,® T. DoNNELLY and Comparative performance of anaerobic digesters operating on ice- G. K. ANDERson@ cream wastewater H. Zao, S. H. Isaacs,@ H. SOEBERG An analysis of nitrogen removal and control strategies in an alternating and M. Kimme.® activated sludge process RICHARD M. GERSBERG, Biomonitoring of toxicity reduction during in situ bioremediation of Maria J. CARROQUINO, monoaromatic compounds in groundwater DEBORAH E. FISCHER and JOHN DAWSEY CHRISTINE L. WARTA, The effect of molecular oxygen on the activated carbon adsorption of SPYRIDON P. PAPADIMAS, natural organic matter in Ohio river water GEORGE A. SORIAL, MAKRAM T. SUIDAN and THOMAS F. SPETH RICHARD T. GILES Optimal strategies for discharging pollutants into narrow estuaries S. OKABE, P. H. NIELSEN, W. L. JONES Sulfide product inhibition of Desulfovibrio desulfuricans in batch and and W. G. CHARACKLIS continuous cultures J. VANDENABEELE, D. DE BEER, Influence of nitrate on manganese removing microbial consortia from R. GERMONPRE, R. VAN DE SANDE and sand filters W. VERSTRAETE Dipak Roy, RAGHAVA R. KOMMALAPATI, Soil flushing of residual transmission fluid: application of Colloidal KALLIAT T. VALSARAJ and Gas Aphron suspensions and conventional surfactant solutions W. Davip CONSTANT R. S. YEH, Y. Y. WANG and C. C. WAN Removal of Cu-EDTA compounds via electrochemical process with coagulation C. GOMEz ARTOLA, B. LACALLE PAREJA Impact on hydrology and nutrient movements of developments in river and P. GONZALEZ GARCIA basins draining into reservoirs AHMET DEMiR Determination of settling efficiency and optimum plate angle for plated settling tanks JAIME PIZARRO, NELSON BELZILE, Coagulation/sedimentation of submicron iron particles in a eutrophic MONTSERRAT FILELLA, GARY G. LEPPARD, lake JEAN-CLAUDE NEGRE, DIDIER PERRET and JACQUES BUFFLE P. S. BARKER and P. L. DoLp COD and nitrogen mass balances in activated sludge systems SHELDON J. B. Durr, KEVIN J. KENNEDY@ Treatment of dilute phenol/PCP wastewaters using the upflow and AMANDA J. BRADY anaerobic sludge blanket (UASB) reactor N. Apu Zep, G. NAKHLA, S. FAROOQ and Activated carbon adsorption in oxidizing environments E. Ose1-TwuM FREDERICK ARCHIBALD and Photodegradation of high molecular weight kraft bleachery effluent LINE Roy-ARCAND organochlorine and color Li-CHouNG CHiANG®, Juu-EN CHanc® Indirect oxidation effect in electrochemical oxidation treatment of and TEN-CHIN WEN landfill leachate HonopeE ZHou and DanieEL W. SmitH® Evaluation of parameter estimation methods for ozone disinfection kinetics A. ImMar®, K. OnuMa, Y. INAMORI Biodegradation and adsorption in refractory leachate treatment by the and R. Supo biological activated carbon fluidized bed process M. TERESA MONTEIRO, ROSARIO OLIVEIRA Metal stress on the plankton communities of Sado River (Portugal) and CARLOS VALE ANSELME NDABIGENGESERE, Active agents and mechanism of coagulation of turbid waters using K. Supa NarasiaH® and Moringa oleifera BRIAN G. TALBOT XVIII YONGwoo Hwan, Tomonori Matsuo®@, Identification and quantification of sulfur and nitrogen containing KEISUKE HANAKI@® and odorous compounds in wastewater Nortyuk! Suzuk1® D. BuTLER® and The suspended solids trap efficiency of the roadside gully pot S. H. P. G.K ARUNARATNE GERALD L. Macxie® and Efficacy and role of alum in removal of zebra mussel veliger larvae BRUCE W. KILGOUR from raw water supplies @ WALTER Z. TANG and C. P. HUANG Photocatalyzed oxidation pathways of 2,4-dichlorophenol by CdS in basic and acidic aqueous solutions Research Note K. MatsunaGa®, T. OnyAMA, K. Kuma, Photoreduction of manganese dioxide in seawater by organic sub- I. Kupo and Y. SuZUKI stances under ultraviolet or sunlight Comment Lipor NovAK Comment on “Modifications to the IAWPRC task group general activated sludge model’’ by P. Griffiths Author’s Reply PETER GRIFFITHS Author’s Reply MARCH Notes for Contributors W. A. House,@ F. H. DENISON and Comparison of the uptake of inorganic phosphorus to a suspended and P. D. ARMITAGE stream bed-sediment LORRAINE MALTBY Sensitivity of the crustaceans Gammarus pulex (L.) and Asellus aquaticus (L.) to short-term exposure to hypoxia and unionized ammonia: observations and possible mechanisms CHRISTOPHER FREEMAN and Isotope dilution analysis and rates of *P incorporation into Maurice A. Lock phospholipid as a measure of microbial growth rates in biofilms S. LUBBECKE, A. VOGELPOHL Wastewater treatment in a biological high-performance system with and W. DEWJANIN high biomass concentration Peter E. Hom, SsuR ANDERSEN® and Speciation of dissolved cadmium: interpretation of dialysis, ion THOMAS H. CHRISTENSEN exchange and computer (GEOCHEM) methods TimoTHy M. STRAUB, Synergistic inactivation of Escherichia coli and MS-2 coliphage by CHARLES P. Gersa,® Xia ZHOU, chloramine and cupric chloride RALPH PRICE and Moyasar T. YAHYA STEPHANIE J. FEAKIN,@ E. BLACKBURN Inoculation of granular activated carbon in a fixed bed with s-triazine- and R. G. Burns® degrading bacteria as a water treatment process V. A. VAVILIN, V. B. VASILIEV, S. V. RYTOV Modeling ammonia and hydrogen sulfide inhibition in anaerobic and A. V. PONOMAREV digestion A. M. MacDona_p, A. C. Epwarps,® Soluble nitrogen and phosphorus in the River Ythan system, U.K.: K. B. PUGH and P. W. BALLS annual and seasonal trends JEREMY WILKINSON, ALAN JENKINS, Modelling faecal coliform dynamics in streams and rivers Mark Wyer and Davip Kay® Piet LENS, ALESSANDRO MASSONE,@ Effect of sulfate concentration and scraping on aerobic fixed biofilm ALBERTO Rozz1@ reactors and WILLY VERSTRAETE® P. N. Lens, M.-P. DE PoorTER, Sulfate reducing and methane producing bacteria in aerobic C. C. CRONENBERG wastewater treatment systems and W. H. VeRsTRAETE® CHUNGSYING Lu, PRATIM Biswas and Simultaneous transport of substrates, disinfectants and micro- ROBERT M. CLARK organisms in water pipes HERBERT H. P. FANG, Y. Y. Li and Performance and sludge characteristics of UASB process treating H. K. Cuul propionate-rich wastewater XIX Pout HarrEMo:s® and OLE SINKJAR Kinetic interpretation of nitrogen removal in pilot scale experiments YUNG-SHUEN SHEN, YOUNG Ku The effect of light absorbance on the decomposition of chlorophenols and KueN-CuHyr LEE by ultraviolet radiation and u.v./H,O, processes L. Frorencio, J. A. Fietp@ and Substrate competition between methanogens and acetogens during the G. Letrinca® degradation of methanol in UASB reactors Hixmet Toprak® Removal of soluble chemical oxygen demand from domestic wastewaters in a laboratory-scale anaerobic waste stabilization pond RONALD GEHR,®@ Ziai A. ZHAI, Reduction of soluble mineral concentrations in CaSO, saturated water JAMES A. FINCH and S. RAM RAO using a magnetic field W. ADMIRAAL, G. M. J. TUBBING Effects of phytoplankton on metal partitioning in the lower River and L. BREEBAART Rhine PiA CHRISTIANSEN, LINE HOLLESEN and Liquid film diffusion on reaction rate in submerged biofilters Pout Harremois@ M. SHEINTUCH, B. TARTAKOVSKY, Substrate inhibition and multiple states in a continuous nitrification N. Narkis® and M. REBHUN process SPENCER M. STEINBERG and FRANCIS LENA Hydrolysis of several substituted methyl benzoates in the aqueous solution MING-CHIEN Su, DANIEL K. CHa® and Influence of selector technology on heavy metal removal by activated PAUL R. ANDERSON sludge: secondary effects of selector technology Rapid Communications A. J. Guwy, D. L. Hawxes® and On-line low flow high-precision gas metering systems F. R. Hawxes® CHRISTIAN E. W. STEINBERG, © Effects of atrazine on swimming behavior of zebrafish, Brachydanio RENATE LORENZ and O. HUNRICH SPIESER rerio Comment J. C. AGUNWAMBA Comment on “Settling velocity model of activated sludge” by S. H. Cho, F. Colin, M. Sardin and C. Prost Author’s Reply Soon-HAENG CHO Author’s Reply APRIL Notes for Contributors MarTIN COTE, BERNARD P. A. GRANDJEAN, Dynamic modelling of the activated sludge process: improving predic- PAuL LessarD®@ and JULES THIBAULT tion using neural networks E. Dupray et A. DERRIEN Influence du passage de Salmonella spp. et E. coli en eaux usées sur leur survie ultérieure en eau de mer ViparR LuND and Kari ORMEROD The influence of disinfection processes on biofilm formation in water distribution systems Jun L. ZHou,® Steve ROwLAND and Partition of synthetic pyrethroid insecticides between dissolved and R. Fauzi C. MANTOURA particulate phases S. SKRYPSKI-MANTELE and T. R. BRIDLE Environmentally sound disposal of tannery sludge H. SaLvap6é, M. P. GRAcIA and Capability of ciliated protozoa as indicators of effluent quality in J. M. AMIGO activated sludge plants R. H. Foy, R. V. Smit, C. JoRDAN and Upward trend in soluble phosphorus loadings to Lough Neagh despite S. D. LENNox phosphorus reduction at sewage treatment works R. C. UPsTILL-GoDDARD and The potential of SF, as a geothermal tracer C. S. WILKINS GIDEON Oron,® MarceL GOEMANS, Poliovirus distribution in the soil-plant system under reuse of Yossi MANOR and JAN FEYEN secondary wastewater XX D. V. VaYENAS and G. LyBERATOos® On the design of nitrifying trickling filters for potable water treatment Dario MarRANI,@ Giuseppe MACCHI Lead precipitation in the presence of sulphate and carbonate: testing and MICHELE PAGANO of thermodynamic predictions A. Cakici® and M. BAYRAMOGLU An approach to controlling sludge age in the activated sludge process SULEYMAN A. Muyisi and Moringa oleifera seeds for softening hardwater LILIAN M. EviIsOoN A. M. DonNISON and C. M. Ross Somatic and F-specific coliphages in New Zealand waste treatment lagoons Hixmet Toprak® Temperature and organic loading dependency of methane and carbon dioxide emission rates of a full-scale anaerobic waste stabilization pond J. A. Scott and I. ABUMOGHLI Modelling nitrification in the river Zarka of Jordan J. Duptey@® Mass transfer in bubble columns: a comparison of correlations M. A. BOLLER and Particle characteristics and headloss increase in granular media M. C. KAVANAUGH® filtration MarkK J. Gross, OTTO ALBINGER, Measurement of bacterial collision efficiencies in porous media Davip G. Jewett, BRucE E. Locan,® RoGer C. BALES and ROBERT G. ARNOLD C. R. WooLarp® and R. L. IRVINE Treatment of hypersaline wastewater in the sequencing batch reactor DANIEL W. SveD and A novel use for the continuous-flow serial diluter: aquatic toxicity Morris H. RosertTs JR testing of contaminated sediments in suspension E. B. MULLER, A. H. STOUTHAMER, Aerobic domestic waste water treatment in a pilot plant with complete H. W. VAN VERSEVELD and sludge retention by cross-flow filtration D. H. E1KELBoom® E. B. MULLER, A. H. STOUTHAMER A novel method to determine maximal nitrification rates by sewage and H. W. VAN VERSEVELD sludge at a non-inhibitory nitrite concentration applied to determine maximal rates as a function of the nitrogen load D. M. M. Peproso and M. T. MARTINS Ultra-morphology of coliphages isolated from water Research Notes S. J. Jupp and J. A. JEFFREY Trihalomethane formation during swimming pool water disinfection using hypobromous and hypochlorous acids G. SANSEBASTIANO, V. REBIZZI, Total halogenated organic (TOX) measurement in ground waters E. BELLELLI, F. SCIARRONE, S. REVERBERI, treated with hypochlorite and with chlorine dioxide. Initial results of S. SaGLiA, A. BRACCAIOLI and an experiment carried out in Emilia-Romagna (Italy) P. CAMERLENGO Technical Note D. S. BARBEAU,® T. G. ELtis® and Oxygen leakage during respirometric measurements: a caution on the C. P. L. Gravy Jr® use of PTFE tape Comment Hivary E. TILLETT Comment on “The ‘most probable number’ estimates and the useful- ness of confidence intervals” by B. Beliaeff and J.-Y. Mary Author’s Reply B. BELIAEFF Author’s Reply Acknowledgement to Referees MAY Notes for Contributors James C. BLoor,® G. K. ANDERSON@® High rate aerobic treatment of brewery wastewater using the jet loop and A. R. WILLEY reactor XXI KEITH M. Moore,® Susan R. Jones and Multi-residue analytical method for uron and carbamate pesticides in CAROLE JAMES water using solid-phase extraction and liquid chromatography-mass spectrometry M. I. ABDULLAH and E. EEk Automatic method for the determination of total CO, in natural waters Davip J. PERNITSKY, GORDON R. FincH® Disinfection kinetics of heterotrophic plate count bacteria in biologi- and Peter M. Huck @ cally treated potable water REYNALDO D. BARRETO, Photocatalytic degradation of methyl-tert-butyl ether in TiO, slurries: Kimpery A. Gray® and KrisTA ANDERS a proposed reaction scheme S. K. BHATTACHARYA, J. L. SLUDER JR Effects of 4-nitrophenol on H, and CO levels in anaerobic propionate and V. UBEROI systems ANN MakIE EILERSEN, MoGEeNs HENZE® Effect of volatile fatty acids and trimethylamine on denitrification in and LENE KLOFT activated sludge YosHio SATO, KATSUO MURAYAMA, Nitric acid adsorption by a phosphonic acid ester type adsorbent TOsHIHIRO NAKAI and NOBUYUKI TAKAHASHI S. K. Dentet,@ J. Y. Bortero,@ Sorption of tannic acid, phenol, and 2,4,5-trichlorophenol on K. KHaTiIB, H. DEMOUGEOT, organoclays J. P. DUGUET and C. ANSELME ADELA-FERNANDEZ, CARMEN TEJEDOR, Assessment of toxicity of river water and effluents by the biolumines- FERNANDO CABRERA and ANDRES CHORDI cence assay using Photobacterium phosphoreum Mary E. Nusse, V. DEAN ApAMs® and The direct and sensitized photo-oxidation of hexachlorocyclo- WILLIAM M. Moore pentadiene J. E. ONGERTH, G. D. HUNTER and Watershed use and Giardia cyst presence F. B. DEWALLE JENNIFER A. FIELD, THOMAS M. FIELD, Fate of secondary alkane sulfonate surfactants during municipal Tuomas PoiGcER, HANSRUEDI SiEGRIsST@ wastewater treatment and WALTER GIGER MICHELE MusciLLo,@ Comparison of cDNA probe hybridizations and RT-PCR detection GIUSEPPINA LA Rosa, methods for the identification and differentiation of enteroviruses Francesca A. AULIcINo,@ isolated from sea water samples PATRIZIA ORSINI, CARLA BELLUCCI and ROBERTO MICARELLI D. Marani,® J. W. Patrerson® and Alkaline precipitation and aging of Cu(II) in the presence of sulfate P. R. ANDERSON Y.S. Ho, D. A. JoHN WasE and Batch nickel removal from aqueous solution by sphagnum moss peat C. F. FORSTER K. V. Exuis® and M. E. AypIn Penetration of solids and biological activity into slow sand filters K. V. Eruis® and P. C. RopRIGuES Developments to the first-order, complete-mix design approach for stabilisation ponds MILOSLAV DrTIL, PETER NEMETH, Acidobasic balances in the course of heterotrophic denitrification Karo Kucman,® Icor Bopik® and VLADISLAV KASPEREK M. VILLALBA, Hydrochemical study of an aquifer system in an agricultural area in F. J. BARRAGAN De La Rosa,® South West Spain M. TERNERO RODRIGUEZ and J. C. JIMENEZ SANCHEZ Y. Y. CHAN and E. G. KILLICK The effect of salinity, light and temperature in a disposal environment on the recovery of E. coli following exposure to ultraviolet radiation YASUHIKO Ousaki,@ Levels and source of non-ortho coplanar polychlorinated biphenyls, TAKAHIKO MATSUEDA and KENJI OHNO polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans in pond sediments and paddy field soil Yasuo TANAKA, KIYOSHI MIYAJIMA, Filtration of municipal sewage by ring shaped floating plastic net Tau FUNAKOsI and SHUICHI CHIDA media XXII S. Zuu, P. R. F. BeELL@ and Quinoline adsorption onto combusted Rundle spent shale in dilute P. F. GREENFIELD@ aqueous solution at the natural pH 8 NGUYEN THANH TIN and Chemical conditions in acidic water in the Plain of Reeds, Viet Nam ANDERS WILANDER@ Research Notes M. G. Marin, M. BRESSAN and Influence of nitrilotriacetic acid (NTA) on the early development of R. BRUNETTI Paracentrotus lividus LMK at different thermo-saline combinations KAZUHO INABA, HIROAKI SHIRAISHI and Effects of salinity, pH and temperature on aqueous solubility of four YuKO SOMA organotin compounds B. PETRUSEVSKI, G. BOLIER, Tangential flow filtration: a method to concentrate freshwater algae A. N. VAN BREEMEN® and G. J. ALAERTS® Comment G. FRED LEE and ANNE JONES-LEE Comment on “Impacts of a phosphate detergent ban on concentrations of phosphorus in the James River, Virginia’ by Frederick A. Hoffman and John W. Bishop JUNE Notes for Contributors JEFFREY HAWKINS WRITER, Sewage contamination in the upper Mississippi River as measured by JERRY A. LEENHEER, LARRY B. BARBER, the fecal sterol, coprostanol Gary L. AMy® and Sreven C. CHAPRA F. Kus and U. WIESMANN Degradation kinetics of acetate and propionate by immobilized anaerobic mixed cultures WEI-MIN wu, MAHENDRA K. Jan®, Effect of storage on the performance of methanogenic granules JURGEN H. THIELE and J. GREGORY ZEIKUS ALBERTO SANTOJANNI, GESSICA GORBI Prediction of mortality in chronic toxicity tests on Daphnia magna and FRANCO SARTORE J. R. D. BEEcRorT, M. C. KOETHER The chemical nature of precipitates formed in solutions of partially and G. W. VANLOON neutralized aluminum sulfate S. J. Witcox, D. L. Hawkes®, A neural network, based on bicarbonate monitoring, to control F. R. Hawxes® and A. J. Guwy anaerobic digestion L. Sun, E. M. PERDUE Using reverse osmosis to obtain organic matter from surface and and J. F. MCCARTHY ground waters JERZY MAZIERSKI Effect of chromium (Cr‘') on the growth rate of activated sludge bacteria Grecory D. BoARDMAN®, Treatment of clam processing wastewaters by means of upflow Jessi L. TISINGER anaerobic sludge blanket technology and DANIEL L. GALLAGHER CLAIRE LEMIEUX, BERNADETTE QUEMERAIS Seasonal patterns of atrazine loading for the St Lawrence River and Ken R. Lum® (Canada) and its tributaries RICHARD FIELD, ROBERT PITT, Combined sewer overflow control using storage in seawater MICHAEL BROWN and THOMAS O’CONNOR Hans G. PETERSON®, STEVE E. HRuDEY®, Physiological toxicity, cell membrane damage and the release of ILENE A. CANTIN, TERRINA R. PERLEY dissolved organic carbon and geosmin by Aphanizomenon flos-aquae and SANDRA L. KENEFICK@ after exposure to water treatment chemicals P. Y. YANG, S. NitisoRAVUT Nitrate removal using a mixed-culture entrapped microbial cell and Jy S. Wu immobilization process under high salt conditions N. I. Gat® and J. T. Novak Pentachlorophenol-induced release of soil organics and colloids BENOIT BELIAEFF Applying geostatistics to identification of spatial patterns of fecal and MarigE-LAURE COCHARD contamination in a mussel farming area (Havre de la Vanlée, France) XXIII MICHAL PERLE, SHLOMO KIMCHIE Some biochemical aspects of the anaerobic degradation of dairy and GEDALIAH SHELEF® wastewater Jacques A. SODDELL and Relationship between temperature and growth of organisms causing Rosert J. Seviour® Nocardia foams in activated sludge plants KENSHI KUMA, SHIGETO NAKABAYASHI Photoreduction of Fe(III) by hydroxycarboxylic acids in seawater and KATSUHIKO MaTsuNAGA® ABDULLAH M. EL-REHAILI Response of BOD, COD and TOC of secondary effluents to chlorination MOoHAMMA—D S. AL-A’AMA and Wastewater reuse in Jubail, Saudi Arabia G. F. NAKHLA Research Note PETER KAMPFER, DIETHELM WELTIN, Growth requirements of filamentous bacteria isolated from bulking DeTLEF HOFFMEISTER and and scumming sludge WOLFGANG DotTT Technical Notes JAMES R. McEwan and ALBERT J. GABRIC A revised algorithm for calculating sample concentrations from spectrophotometric absorbances Natasa Gros and BoGomit GoreNc® Anions in mineral waters—facilitated transition to ion chromato- graphic monitoring J. VERRAN, R. TAYLOR, Comments on the routine testing of water samples for Legionella sp. N. S. J. CHRISTOPHER and J. S. ROBINSON Rapid Communications S. R. AHMAD and D. M. REYNOLDs Synchronous fluorescence spectroscopy of wastewater and some potential constituents S@REN DyREBORG and ERIK Arvin® Inhibition of nitrification by creosote-contaminated water TAKASHI OSADA, KAZUTAKA KURODA and Reducing nitrous oxide gas emissions from fill-and-draw type activated MICHIHIRO YONAGA sludge process Comments and Authors’ Replies CHENG-NAN CHaNnG®, A. C. CHao and Comment on “Reaction kinetics of humic acid with sodium hypo- Jim-Gaw Lin® chlorite” by M. C. Sanchez Jimenez, A. Pedraza Dominguez and J. M. Cachaza Silverio A. PEDRAZA DOMINGUEZ Author’s Reply CuHaRLEs N. Haas® Comment on “Destruction of oocysts of Cryptosporidium parvum by sand and chlorine” by J. F. W. Parker and H. V. Smith J. F. W. Parker, J. E. ONGERTH Authors’ Reply and H. V. SMITH JERZY J. GANCZARCZYK@ Comment on “Settling of flocculent suspensions in secondary clarifiers” by G. G. Patry and I. Takacs Forthcoming Conferences JULY Notes for Contributors M. A. BLACKBURN and M. J. WALDOCK Concentrations of alkylphenols in rivers and estuaries in England and Wales KARL FENT and PETER W. LOOSER Bioaccumulation and bioavailability of tributyltin chloride: influence of pH and humic acids F. JorAND,@ F. ZARTARIAN, F. THomas,® Chemical and structural (2D) linkage between bacteria within J.C. Biocx,®@ J. Y. Botrero,@ activated sludge flocs G. VILLEMIN, V. URBAIN and J. MANEM V. Diez Bianco, P. A. Garcia ENcina® Effects of biofilm growth, gas and liquid velocities on the expansion and F. Fpz-PoLanco@® of an anaerobic fluidized bed reactor (AFBR) XXIV