Vol. 31 No. 4 (2005)

Published: 2006-09-06

Water quality assessment using SVD-based principal component analysis of hydrological data

Petr Praus

417-422

DOI:

10.4314/wsa.v31i4.5132

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Maximising water supply system yield subject to multiple reliability constraints via simulation-optimisation

John G Ndiritu

423-434

DOI:

10.4314/wsa.v31i4.5133

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Water service delivery in Pietermaritzburg: A community perspective

JA Smith, JM Green

435-448

DOI:

10.4314/wsa.v31i4.5134

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Integrating biodiversity concepts with good governance to support water resources management in South Africa

PJ Ashton, MJ Patrick, HM MacKay, AvB Weaver

449-456

DOI:

10.4314/wsa.v31i4.5135

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Application of the RAFLS model for integrated water resource management for the Itezhi-Tezhi/Kafue river system

Humphrey Sinyangwe, David Stephenson

457-464

DOI:

10.4314/wsa.v31i4.5136

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Wetlands as early warning (eco)systems for water resource management

MC Grenfell, WN Ellery, RA Preston-Whyte

465-472

DOI:

10.4314/wsa.v31i4.5137

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Derivation of quantitative management objectives for annual instream water temperatures in the Sabie River using a biological index

NA Rivers-Moore, GPW Jewitt, DC Weeks

473-481

DOI:

10.4314/wsa.v31i4.5138

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The filtering capacity of selected Eastern Cape estuaries, South Africa

UM Scharler, D Baird

483-490

DOI:

10.4314/wsa.v31i4.5139

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Distribution and habitats of Bulinus depressus and possible role as intermediate host of economically important helminth parasites in South Africa

KN de Kock, CT Wolmarans

491-496

DOI:

10.4314/wsa.v31i4.5140

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Determination of low citric acid concentrations in a mixture of weak acid/bases

Ori Lahav, Emily Shlafman, Malka Cochva

497-502

DOI:

10.4314/wsa.v31i4.5141

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Nitrogen removal from urban wastewater by activated sludge process operated over the conventional carbon loading rate limit at low temperature

Jean-Marc Choubert, Yvan Racault, Alain Grasmick, Christian Beck, Alain Heduit

503-510

DOI:

10.4314/wsa.v31i4.5142

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A steady state model for anaerobic digestion of sewage sludges

SW Sötemann, NE Ristow, MC Wentzel, GA Ekama

511-528

DOI:

10.4314/wsa.v31i4.5143

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Integrated biological, chemical and physical processes kinetic modelling
Part 1 – Anoxic-aerobic C and N removal in the activated sludge system

SW Sötemann, EV Musvoto, MC Wentzel, GA Ekama

529-544

DOI:

10.4314/wsa.v31i4.5144

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Integrated chemical/physical and biological processes modeling
Part 2 - Anaerobic digestion of sewage sludges

SW Sötemann, P van Rensburg, NE Ristow, MC Wentzel, RE Loewenthal, GA Ekama

545-568

DOI:

10.4314/wsa.v31i4.5145

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An analysis of the water soluble components of Sappi Saiccor's effluent streams

F Ismail, DA Mulholland, JJ Marsh

569-574

DOI:

10.4314/wsa.v31i4.5146

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Degradation of pulp and paper-mill effluent by thermophilic micro-organisms using batch systems

Prenaven Reddy, Visvanathan L Pillay, Adinarayana Kunamneni, Suren Singh

575-580

DOI:

10.4314/wsa.v31i4.5147

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Metals in environmental media: A study of trace and platinum group metals in Thohoyandou, South Africa

John Ogony Odiyo, Hendricks Maboladisoro Bapela, Ronald Mugwedi, Luke Chimuka

581-588

DOI:

10.4314/wsa.v31i4.5148

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A note on the concentrations and bioavailability of selected metals in sediments of Richards Bay Harbour, South Africa

V Wepener, LA Vermeulen

589-596

DOI:

10.4314/wsa.v31i4.5149

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Studies on adsorption behaviour of Cr(VI) onto synthetic hydrous stannic oxide

Saswati Goswami, Uday Chand Ghosh

597-602

DOI:

10.4314/wsa.v31i4.5150

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Treatment of dairy wastewater in UASB reactors inoculated with flocculent biomass

H Nadais, I Capela, L Arroja, A Duarte

603-608

DOI:

10.4314/wsa.v31i4.5151

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Relationship between rainfall and microbiological contamination of shallow groundwater in Northern Mozambique

S Godfrey, F Timo, M Smith

609-614

DOI:

10.4314/wsa.v31i4.5152

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