Vol. 44 No. 4 (2018)

Published: 2018-11-06

Sensitivity analysis for water quality monitoring frequency in the application of a water quality index for the uMngeni River and its tributaries, KwaZulu-Natal, South Africa

J.N. Namugize, G.P.W. Jewitt

516-527

DOI:

10.4314/wsa.v44i4.01

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Model parameters of four important vegetable crops for improved water use and yield estimation

J.T. Vahrmeijer, J.G. Annandale, J.M. Steyn, K.L. Bristow

528-538

DOI:

10.4314/wsa.v44i4.02

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Applying performance indices in plantwide modelling for a comparative study of wastewater treatment plant operational strategies

Justine De Ketele, Dries Davister, David S. Ikumi

539-550

DOI:

10.4314/wsa.v44i4.03

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Suitability of treated wastewater with respect to pH, electrical conductivity, selected cations and sodium adsorption ratio for irrigation in a semi-arid region

Pholosho M. Kgopa, Phatu W. Mashela, Alen Manyevere

551-556

DOI:

10.4314/wsa.v44i4.04

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Disaggregation of fixed time interval rainfall to continuous measured rainfall for the purpose of design rainfall estimation

O.J. Gericke, J.P.J. Pietersen

557-568

DOI:

10.4314/wsa.v44i4.05

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Accumulation of multiple heavy metals in plants grown on soil treated with sewage sludge for more than 50 years presents health risks and an opportunity for phyto-remediation

Awonke Mbangi, Pardon Muchaonyerwa, Rebecca Zengeni

569-576

DOI:

10.4314/wsa.v44i4.06

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Mapping of water-related ecosystem services in the uMngeni catchment using a daily time-step hydrological model for prioritisation of ecological infrastructure investment – Part 1: Context and modelling approach

C.J. Hughes, G de Winnaar, R.E. Schulze, M Mander, G.P.W. Jewitt

577-589

DOI:

10.4314/wsa.v44i4.08

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Mapping of water-related ecosystem services in the uMngeni catchment using a daily time-step hydrological model for prioritisation of ecological infrastructure investment – Part 2: Outputs

C.J. Hughes, G de Winnaar, R.E. Schulze, M Mander, G.P.W. Jewitt

590-600

DOI:

10.4314/wsa.v44i4.08

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Distribution of polychlorinated biphenyl along the course of the Buffalo River, Eastern Cape Province, South Africa, and possible health risks

A Yahaya, O.A. Adeniji, O.O. Okoh, S.P. Songca, A.I. Okoh

601-611

DOI:

10.4314/wsa.v44i4.09

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Development of a deterministic design model for a high-rate algal pond

I.S.W. van der Merwe, I.C. Brink

612-623

DOI:

10.4314/wsa.v44i4.10

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Natural organic matter in aquatic systems – a South African perspective

Nhamo Chaukura, Nqobile G. Ndlangamandla, Welldone Moyo, Titus A.M. Msagati, Bhekie B. Mamba, Thabo T.I. Nkambule

624-635

DOI:

10.4314/wsa.v44i4.11

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Monitoring water use efficiency of irrigated sugarcane production in Mpumalanga, South Africa, using SEBAL

A Singels, C Jarmain, E Bastidas-Obando, F.C. Olivier, A.L. Paraskevopoulos

636-646

DOI:

10.4314/wsa.v44i4.12

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Theoretical solution for analysis and design of hydraulic jump on corrugated bed

Jahanshir Mohammadzadeh-Habili, Tooraj Honar

647-652

DOI:

10.4314/wsa.v44i4.13

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Water insecurity, illness and other factors of everyday life: A case study from Choma District, Southern Province, Zambia

Richard A. Marcantonio

653-663

DOI:

10.4314/wsa.v44i4.14

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Explaining variation in the economic value of irrigation water using psychological capital: a case study from Ndumo B and Makhathini, KwaZulu-Natal, South Africa

S Phakathi, E Wale

664-673

DOI:

10.4314/wsa.v44i4.15

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Isotopic tracing of stormwater in the urban Liesbeek River

Ruan van Mazijk, Lucy K. Smyth, Eleanor A. Weideman, Adam G. West

674-679

DOI:

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Development of statistical models for trihalomethane (THM) removal in drinking water sources using carbon nanotubes (CNTs)

Kadir Özdemir, Ömer Güngör

680-690

DOI:

10.4314/wsa.v44i4.17

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Continuous simulation modelling for design flood estimation – a South African perspective and recommendations

T.J. Rowe, J.C. Smithers

691-705

DOI:

10.4314/wsa.v44i4.18

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Geochemical scaling potential simulations of natural organic matter complexation with metal ions in cooling water at Eskom power generation plants in South Africa

G.O. Bosire, J.C. Ngila, Thabo T.I. Nkambule

706-718

DOI:

10.4314/wsa.v44i4.19

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Impact of invasive alien plants on water provision in selected catchments

I.R. Preston, D.C. Le Maitre, J.N. Blignaut, L Louw, C.G. Palmer

719-729

DOI:

10.4314/wsa.v44i4.20

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The Pongola Floodplain, South Africa – Part 1: Two-dimensional hydrodynamic modelling in support of an environmental flows assessment

A.L. Birkhead, C.A. Brown, A.R. Joubert, A Singh, T Tlou

731-745

DOI:

10.4314/wsa.v44i4.21

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The Pongola Floodplain, South Africa – Part 2: Holistic environmental flows assessment

Cate Brown, Alison Joubert, Toriso Tlou, Andrew Birkhead, Gary Marneweck, Bruce Paxton, Adhishri Singh

746-759

DOI:

10.4314/wsa.v44i4.22

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An anomaly in pH data in South Africa’s national water quality monitoring database – implications for future use

Carla-Louise Ramjukadh, Michael Silberbauer, Susan Taljaard

760-763

DOI:

10.4314/wsa.v44i4.23

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Combining tracer studies and biomimetic design principles to investigate clogging in constructed wetlands

Ricky Bonner, Lara Aylward, Uwe Kappelmeyer, Craig Sheridan

764-770

DOI:

10.4314/wsa.v44i4.24

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Development of Consumer Perception Index for assessing greywater reuse potential in arid environments

Md Shafiquzzaman, Husnain Haider, Saleem Saleh AlSaleem, Abdul Razzaq Ghumman, Rehan Sadiq

771-781

DOI:

10.4314/wsa.v44i4.25

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A scenario-based multiple attribute decision-making approach for site selection of a wastewater treatment plant: Bahir Dar City (Ethiopia) case study

Tilik Tena Wondim, Bloodless Dzwairo

782-794

DOI:

10.4314/wsa.v44i4.26

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