Vol. 40 No. 4 (2014)

Published: 2014-09-22

A feasibility study of in-line rheological characterisation of a wastewater sludge using ultrasound technology

R Kotzé, R Haldenwang, V Fester, W Rössle

579-586

DOI:

10.4314/wsa.v40i4.1

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Rainfall intensity effects on crusting and mode of seedling emergence in some quartz-dominated South African soils

A Nciizah, IIC Wakindiki

587-594

DOI:

10.4314/wsa.v40i4.2

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Analytical solutions for the recovery tests after constant-discharge tests in confined aquifers

A Atangana

595-600

DOI:

10.4314/wsa.v40i4.3

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Diatoms as indicators of historical water quality: A comparison of samples taken in the Wemmershoek catchment (Western Province, South Africa) in 1960 and 2008

WR Harding

601-606

DOI:

10.4314/wsa.v40i4.4

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Human health risk assessment for silver catfish Schilbe intermedius Rüppell, 1832, from two impoundments in the Olifants River, Limpopo, South Africa

A Addo-Bediako, SM Marr, A Jooste, WJ Luus-Powell

607-614

DOI:

10.4314/wsa.v40i4.5

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SST prediction methodologies and verification considerations for dynamical mid-summer rainfall forecasts for South Africa

WA Landman, A Beraki, D DeWitt, D Lötter

615-622

DOI:

10.4314/wsa.v40i4.6

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Synthesis of bulk ion-imprinted polymers (IIPs) embedded with oleic acid coated Fe₃O₄ for selective extraction of hexavalent uranium

NT Tavengwa, E Cukrowska, L Chimuka

623-630

DOI:

10.4314/wsa.v40i4.7

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A scientometric examination of the performance of water research in South Africa

IM Jacobs, A Pouris, D Naidoo

631-638

DOI:

10.4314/wsa.v40i4.8

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Future hydropower production in the Lower Zambezi under possible climate change influence

P Stanzel, H Kling

639-648

DOI:

10.4314/wsa.v40i4.9

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Filament identification and dominance of Eikelboom Type 0092 in activated sludge from wastewater treatment facilities in Cape Town, South Africa

PJ Welz, A Esterhuysen, M Vulindlu, C Bezuidenhout

649-658

DOI:

10.4314/wsa.v40i4.10

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Application of nano zinc oxide (nZnO) for the removal of triphenyltin chloride (TPT) from dockyard wastewater

SA Olushola, SF Olalekan, AA Folahan, FP Leslie, BJ Ximba

659-664

DOI:

10.4314/wsa.v40i4.11

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Assessing the performance of urban water utilities in Mozambique using a water utility performance index

J Gallego-Ayala, C Dimene, A Munhequete, R Amos

665-676

DOI:

10.4314/wsa.v40i4.12

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Improved waste-activated sludge dewatering using sludge/oil emulsion, ultrasonic and microwave technologies

S Kim, J Kim, J Chung

677-686

DOI:

10.4314/wsa.v40i4.13

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Nutrient characterisation of river inflow into the estuaries of the Gouritz Water Management Area, South Africa

DA Lemley, S Taljaard, JB Adams, N Strydom

687-698

DOI:

10.4314/wsa.v40i4.14

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Collective action and participation in irrigation water management: A case study of Mooi River Irrigation Scheme in KwaZulu-Natal Province, South Africa

B Muchara, G Ortmann, E Wale, M Mudhara

699-708

DOI:

10.4314/wsa.v40i4.15

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A survey of Cr(VI) contamination of surface water in the proximity of ferrochromium smelters in South Africa

MM Loock, JP Beukes, PG van Zyl

709-716

DOI:

10.4314/wsa.v40i4.16

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Palaeolimnological reconstruction of recent environmental change in Lake Malombe (S. Malawi) using multiple proxies

Z Dulanya, I Croudace, JM Reed, MH Trauth

717-728

DOI:

10.4314/wsa.v40i4.17

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Application of probabilistic precipitation forecasts from a deterministic model towards increasing the lead-time of flash flood forecasts in South Africa

E Poolman, H Rautenbach, C Vogel

729-738

DOI:

10.4314/wsa.v40i4.18

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Arsenic, chromium, copper, iron, manganese, lead, selenium and zinc in the tissues of the largemouth yellowfish, Labeobarbus kimberleyensis (Gilchrist and Thompson, 1913), from the Vaal Dam, South Africa, and associated consumption risks

BM Gilbert, A Avenant-Oldewage

739-748

DOI:

10.4314/wsa.v40i4.19

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Climate change and urban development in southern Africa: The case of Ekurhuleni Municipality (EMM) in South Africa

SJ Piketh, C Vogel, S Dunsmore, C Culwick, F Engelbrecht, I Akoon

749-758

DOI:

10.4314/wsa.v40i4.20

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