Water SA
WaterSA publishes refereed, original work in all branches of water science, technology and engineering. This includes water resources development; the hydrological cycle; surface hydrology; geohydrology and hydrometeorology; limnology; salinisation; treatment and management of municipal and industrial water and wastewater; treatment and disposal of sewage sludge; environmental pollution control; water quality and treatment; aquaculture in terms of its impact on the water resource; agricultural water science; etc.
Water SA is the WRC’s accredited scientific journal which contains original research articles and review articles on all aspects of water science, technology, engineering and policy. Water SA has been in publication since 1975 and includes articles from both local and international authors. The journal is issued quarterly (4 editions per year).
Other websites related to this journal: http://www.wrc.org.za
WaterSA is also available electronically through SABINET Online http://journals.sabinet.co.za/

Vol 38, No 1 (2012)
Table of Contents
Articles
| The chemical oxidation of lignin found in Sappi Saiccor dissolving pulp mill effluent |
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| B Moodley, DA Mulholland, HC Brookes | 1-8 |
| Removal and transformation of hexavalent chromium in sequencing batch reactor |
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| S-W Loo, K-Y Leong, P-E Lim | 9-14 |
| Diffusive gradient in thin-films (DGT) as risk assessment and management tools in the Central Witwatersrand Goldfield, South Africa |
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| H Mengistu, O Roeyset, A Tessema, TA Abiye, MB Demlie | 15-22 |
| Application of magnesium hydroxide and barium hydroxide for the removal of metals and sulphate from mine water |
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| V Bologo, JP Maree, F Carlsson | 23-28 |
| Identification of metal-tolerant organisms isolated from the Plankenburg River, Western Cape, South Africa |
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| VA Jackson, AN Pulse, JP Odendaal, S Khan, W Khan | 29-38 |
| A comparative assessment of chemical contaminant removal by three household water treatment filters |
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| TO Mahlangu, BB Mamba, MNB Momba | 39-48 |
| A case study to determine the efficacy of ozonation in purification processes |
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| S Morrison, A Venter, S Barnard | 49-54 |
| The hydrodynamic response of a semi-arid headwater wetland to technical rehabilitation interventions |
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| ES Riddell, SA Lorentz, DC Kotze | 55-66 |
| Comparison of methods for determining unsaturated hydraulic conductivity in the wet range to evaluate the sensitivity of wetting front detectors |
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| GT Adhanom, RJ Stirzaker, SA Lorentz, JG Annandale, JM Steyn | 67-76 |
| The effect of crop residue layers on evapotranspiration, growth and yield of irrigated sugarcane† |
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| FC Olivier, A Singels | 77-86 |
| River water quality in the northern sugarcane-producing regions of South Africa and implications for irrigation: A scoping study |
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| M van der Laan, R van Antwerpen, KL Bristow | 87-96 |
| Nutrient limitation of phytoplankton in five impoundments on the Manyame River, Zimbabwe |
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| P Tendaupenyu | 97-104 |
| Promoting uptake and use of conservation science in South Africa by government |
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| N Funke, S Nienaber | 105-113 |
| The role of statutory and local rules in allocating water between large- and small-scale irrigators in an African river catchment |
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| HC Komakech, M Condon, P van der Zaag | 115-126 |
| The extent of on-site leakage in selected suburbs of Johannesburg |
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| MFT Lugoma, JE van Zyl, AA Ilemobade | 127-132 |
| Swimming pools and intra-city climates: Influences on residential water consumption in Cape Town |
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| R Siebrits | 133-144 |
| Technical note: Effects of free-surface on design charts for open channels |
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| M Rahimpour | 145-148 |
| Technical note On modifying the Arrhenius equation to compensate for temperature changes for reactions within biological systems |
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| C Sheridan, J Petersen, J Rohwer | 149-152 |


