Vol. 45 No. 3 (2019)

Published: 2019-08-02

Plantwide modelling – anaerobic digestion of waste sludge from parent nutrient (N and P) removal systems

D.S. Ikumi, G.A. Ekama

305-316

DOI:

10.17159/wsa/2019.v45.i3.6698

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Modelling mesophilic-thermophilic temperature transitions experienced by an aerobic membrane bioreactor treating furfural plant effluent

L.G. Kay, C.J. Brouckaert, R.C. Sindall

317-328

DOI:

10.17159/wsa/2019.v45.i3.6711

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Reconsideration and upgrading of sampling and analysis methods for avoiding measurement-related design and operation failures in wastewater treatment

V Bakos, A Deák, A Jobbágy

329-337

DOI:

10.17159/wsa/2019.v45.i3.6729

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Physico-chemical properties and bacterial community structure dynamics during the mesophilic anaerobic digestion of pit latrine faecal sludge

M.C. Changara, W.T. Sanyika, C Bangira, S Misi

338-348

DOI:

10.17159/wsa/2019.v45.i3.6730

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Eects of nitrogen loading from domestic wastewater on groundwater quality

Tamás Mester, Dániel Balla, Gergὄ Karancsi, Éva Bessenyei, György Szabó

349-358

DOI:

10.17159/wsa/2019.v45.i3.6731

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The feasibility of wastewater recycling that includes residue from dissolved air flotation within a drinking water treatment plant: case study of Midvaal Water Company, South Africa

Shalene Janse van Rensburg, Sandra Barnard, Marina Krüger

359-366

DOI:

10.17159/wsa/2019.v45.i3.6732

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Membrane surface properties and their effects on real waste oil-in-water emulsion ultrafiltration

Marjana Simonič

367-373

DOI:

10.17159/wsa/2019.v45.i3.6733

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Removal of lead in water using activated carbon prepared from Acacia catechu

K Lakshmikandhan, A Ramadevi

374-382

DOI:

10.17159/wsa/2019.v45.i3.6734

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Smallholder willingness to pay and preferences in the way irrigation water should be managed: a choice experiment application in KwaZulu-Natal, South Africa

U Chipfupa, E Wale

383-392

DOI:

10.17159/wsa/2019.v45.i3.6735

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The role of water conservation strategies and benchmark ecotopes for increasing yields in South Africa’s semi-arid croplands

Malcolm Hensley, Pieter A.L. le Roux, J Jacobus Botha, Leon D. van Rensburg

393-399

DOI:

10.17159/wsa/2019.v45.i3.6736

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Developing a fuzzy logic model for predicting soil inltration rate based on soil texture properties

Ahmed Z. Dewidar, Hussein Al-Ghobari, Abed Alataway

400-410

DOI:

10.17159/wsa/2019.v45.i3.6737

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Experimental investigation of time-dependent local scour downstream of a stepped channel

Aysegul Ozgenc Aksoy, Mustafa Dogan

411-419

DOI:

10.17159/wsa/2019.v45.i3.6738

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Assessment of CFD turbulence models for free surface flow simulation and 1-D modelling for water level calculations over a broad-crested weir oodway

Ahmed M. Helmi

420-433

DOI:

10.17159/wsa/2019.v45.i3.6739

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Development of a design and implementation process for the integration of hydrokinetic devices into existing infrastructure in South Africa

C.M. Niebuhr, M Van Dijk, J.N. Bhagwan

434-446

DOI:

10.17159/wsa/2019.v45.i3.6740

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Garden irrigation as household end-use in the presence of supplementary groundwater supply

Bettina Elizabeth Meyer, Heinz Erasmus Jacobs

447-455

DOI:

10.17159/wsa/2019.v45.i3.6741

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Do rope and washer pumps provide safe water and satisfied users? A case study piloting new rural water supply technology in Rumphi District, Malawi

Jacob C. Mkandawire, Mavuto Tembo, Muthi Nhlema, Joel Luhanga, Rochelle H. Holm

456-463

DOI:

10.17159/wsa/2019.v45.i3.6742

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Prevalence of bromide in groundwater in selected regions in South Africa

H.L. Lucht, N.H. Casey

464-468

DOI:

10.17159/wsa/2019.v45.i3.6743

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Organophosphorus flame retardants in surface and effluent water samples from the Vaal River catchment, South Africa: levels and risk to aquatic life

T.B. Chokwe, S.M. Mporetji

469-476

DOI:

10.17159/wsa/2019.v45.i3.6744

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Evaluating the effectiveness of freshwater fishes as bio-indicators for urban impacts in the Crocodile (West) catchment, South Africa

Jonathan C. Levin, Darragh J. Woodford, Gavin C. Snow

477-486

DOI:

10.17159/wsa/2019.v45.i3.6745

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Review: Water quality in non-perennial rivers

J.A. Day, H.L. Malan, E Malijani, A.P. Abegunde

487-500

DOI:

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Review: Methods for the estimation of extreme rainfall events

K.A. Johnson, J.C. Smithers

501-512

DOI:

10.17159/wsa/2019.v45.i3.6747

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Review: Climate change and the water footprint of wheat production in Zimbabwe

Simbarashe Govere, Justice Nyamangara, Emerson Z. Nyakatawa

513-526

DOI:

10.17159/wsa/2019.v45.i3.6748

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Review: Sensors for the improvement of irrigation efficiency in nurseries

Nkosinathi D. Kaptein, Marnie E. Light, Michael J. Savage

527-535

DOI:

10.17159/wsa/2019.v45.i3.6750

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