Articles

• An inter-comparison of model-simulated east–west climate gradients over South Africa

  MR Jury

  467-478

  DOI: 10.4314/wsa.v38i4.1

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• Variation in VIP latrine sludge contents

  BF Bakare, KM Foxon, CJ Brouckaert, CA Buckley

  479-486

  DOI: 10.4314/wsa.v38i4.2

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• Implementing a protocol for selection and prioritisation of organic contaminants in the drinking water value chain: Case study of Rand Water, South Africa

  EJ Ncube, K Voyi, H du Preez

  487-504

  DOI: 10.4314/wsa.v38i4.3

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• Cr(VI) formation during ozonation of Cr-containing materials in aqueous suspension – implications for water treatment

  W van der Merwe, JP Beukes, PG van Zyl

  505-510

  DOI: 10.4314/wsa.v38i4.4

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• Characterising the reactivity of metallic iron in Fe⁰/As-rock/H₂O systems by long-term column experiments

  C Noubactep

  511-518

  DOI: 10.4314/wsa.v38i4.5

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• Comparative study of EVA-Cloisite^® 20A and heat-treated EVA-Cloisite^® 20A on heavy-metal adsorption properties

  DS Dlamini, AK Mishra, BB Mamba

  519-528

  DOI: 10.4314/wsa.v38i4.6

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• Preparation and characterisation of tamarind 4-hydroxybenzoic acid (THBA) resin and its use in extraction of heavy metal ions from industrial wastewater

  AV Singh, IK Kumawat

  529-536

  DOI: 10.4314/wsa.v38i4.7

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• Fenton and solar photo-Fenton processes for the removal of chlorpyrifos insecticide in wastewater

  Y Samet, E Hmani, R Abdelhédi

  537-542

  DOI: 10.4314/wsa.v38i4.8

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• Spectrophotometric determination of fluoride in drinking water using aluminium complexes of triphenylmethane dyes

  Z Barghouthi, S Amereih

  543-548

  DOI: 10.4314/wsa.v38i4.9

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• A comparative life cycle assessment of process water treatment technologies at the Secunda industrial complex, South Africa

  C Ras, H von Blottnitz

  549-554

  DOI: 10.4314/wsa.v38i4.10

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• Prioritising alternatives for maintenance of water distribution networks: A group decision approach

  F Trojan, DC Morais

  555-564

  DOI: 10.4314/wsa.v38i4.11

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• Operational optimisation of water supply networks using a fuzzy system

  STM Bezerra, SA da Silva, HP Gomes

  565-572

  DOI: 10.4314/wsa.v38i4.12

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• Comprehensive entropy weight observability-controllability risk analysis and its application to water resource decision-making

  XG Li, X Wei, Q Huang

  573-580

  DOI: 10.4314/wsa.v38i4.13

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• Assessment of microbial contamination of groundwater in upper Limphasa River catchment, located in a rural area of northern Malawi

  T Kanyerere, J Levy, Y Xu, J Saka

  581-596

  DOI: 10.4314/wsa.v38i4.14

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• Nitrogen, phosphorus and silicon in riparian ecosystems along the Berg River (South Africa): The effect of increasing human land use

  E Struyf, KD Bal, H Backx, D Vrebos, A Casteleyn, E De Deckere, J Schoelynck, L Brendonck, LM Raitt, P Meire

  597-606

  DOI: 10.4314/wsa.v38i4.15

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• Nitrate-induced changes and effect of varying total nitrogen to total phosphorus ratio on the phytoplankton community in Lake Chivero, Zimbabwe: Microcosm experiments

  L Mhlanga, W Mhlanga

  607-614

  DOI: 10.4314/wsa.v38i4.16

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• Sludge pipe flow pressure drop prediction using composite power-law friction factor–Reynolds number correlations based on different non-Newtonian Reynolds numbers

  R Haldenwang, APN Sutherland, VG Fester, R Holm, RP Chhabra

  615-622

  DOI: 10.4314/wsa.v38i4.17

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• Simulation of hydrological processes in the Simiyu River, tributary of Lake Victoria, Tanzania

  J Rwetabula, F De Smedt, M Rebhun

  623-632

  DOI: 10.4314/wsa.v38i4.18

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• Methods for design flood estimation in South Africa

  JC Smithers

  633-646

  DOI: 10.4314/wsa.v38i4.19

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