Water and Environmental Engineering

Water and environmental engineering has to do with water resources development and management, yield analysis, low and flood flow hydrology, river hydraulics, design of hydraulic structures such as dams, tunnels and pump stations, water services, water quality and water treatment, as well as coastal and port engineering.

In the Water Division, fields of specialisation include river and stormwater hydraulics, design of hydraulic structures, hydrology, water services, water quality and treatment, and port and coastal engineering.

The division is endowed with an excellent and spacious hydraulic laboratory where a large number of model studies have been performed. Computer modeling also finds wide application in research and specialist consulting work.

For specific research topics currently available, contact the Head of Division, Prof Heinz Jacobs.

The Institute for Water and Environmental Engineering (IWEESU), directed by Prof Kobus Du Plessis, specializes in research and specialized consulting in the fields of river hydraulics and sedimentation, eco-hydraulics, coastal engineering, water resources management and water services.

2019

Journal Articles

BRINK IC. Small-scale dispersed Green Infrastructure – a fitting civil engineering solution to stormwater quality improvement? Journal of the South African Institution of Civil Engineering 2019; 61(4):42-49.

DU PLESSIS JA, LOOTS W. Re – evaluation of area reduction factors and their impact on floods in South Africa. Arabian Journal of Geosciences 2019; 12(15):1-16.

JACKLIN DM, BRINK IC, DE WAAL JH. Laboratory method design for investigating the phytoremediation of polluted water. Water SA 2019; 45(4):608-615.

KOEN J, BOSMAN DE, BASSON GR. Artificial aeration of stepped spillways by crest piers and flares for the mitigation of cavitation damage. Journal of the South African Institution of Civil Engineering 2019; 61(2):28-38.

MCLEOD CH, VILJOEN C. Quantification of crack prediction models in reinforced concrete under flexural loading. Structural Concrete 2019; 20:2096-2108.

MEYER BE, JACOBS HE. Garden irrigation as household end-use in the presence of supplementary groundwater supply. Water SA 2019; 45(3):447-455.

NEL N, JACOBS HE. Investigation into untreated greywater reuse practices by suburban households under the threat of intermittent water supply. Journal of Water Sanitation and Hygiene for Development 2019; 9(4):627-634.

PRETORIUS D, CROUCH ML, JACOBS HE. Diurnal water use patterns for low – cost houses with indigent water allocation: A South African case study. Journal of Water Sanitation and Hygiene for Development 2019; 9(3):513-521.

SAWADOGO O, BASSON GR, SCHNEIDERBAUER S. Physical and coupled fully three-dimensional numerical modeling of pressurized bottom outlet flushing processes in reservoirs. International Journal of Sediment Research 2019; 34:461-474.

SILAVWE DD, BRINK IC, WALLIS SG. Assessment of some Numerical methods for estimating the parameters of the one – dimensional advection -dispersion model. Acta Geophysica 2019; 67:999-1016.

SIWILA S, BRINK IC. Comparison of Five point of-use drinking water technologies using a specialized comparison framework. JOURNAL OF WATER AND HEALTH 2019; 17(4):568-586.

SIWILA S, BRINK IC. Drinking water treatment using indigenous wood filters combined with granular activated carbon. Journal of Water Sanitation and Hygiene for Development 2019; 9(3):477-491.

SIWILA S, BRINK IC. Low Cost drinking water treatment using nonwoven engineered and woven cloth fabrics. JOURNAL OF WATER AND HEALTH 2019; 17(1):98-112.

VONKEMAN JK, BASSON GR. Evaluation of Empirical equations to predict bridge pier scour in a non-cohesive bed under clear-water conditions. Journal of the South African Institution of Civil Engineering  2019; 61(2):2-20.

International Proceedings

BASSON GR, MC LEOD C, VAN DER SPUY LR. Hydraulic design and physical model optimization of sustainable river abstraction works on alluvial rivers with sediment management features for potable water supply in South Africa. In: Haldenwang R (ed.) 19th International Conference on Transport & Sedimentation of Solid Particles, Cape Town, South Africa, Wrocław University of Environmental and Life Sciences 2019: 327-336.

BASSON GR, MC LEOD C. Hydraulic Design of Sustainable River Abstraction Works on alluvial rivers with sediment Management Features for Portable Water Supply. SEDHYD 2019 Conference, Reno, USA, Zakon Group LLC 2019: 1-15.

KIRINGU JK, BASSON GR. Removal of fine non-cohesive sediment by swirl/vortex settling basin at small river abstraction works. In: Haldenwang R (ed.) 19th International Conference on Transport & Sedimentation of Solid Particles, Cape Town, South Africa, Wrocław University of Environmental and Life Sciences 2019: 311-318.

KIRINGU JK, BASSON GR. Sediment yield analysis of the Baro-Akobo-Sobat Sub-basin in Ethiopia. SEDHYD 2019 Conference, Reno, USA, SEDHYD 2019: 1-15.

MC LEOD C, SAWADOGO O, BASSON GR. Optimization of sand trap and settler designs for efficient deposition of suspended sediment . In: Haldenwang R (ed.) 19th International Conference on Transport & Sedimentation of Solid Particles, Cape Town, South Africa, Wrocław University of Environmental and Life Sciences 2019: 301-310.

VAN DER SPUY LR, BASSON GR, BOSMAN DE. Flushing of sediments at hydropower plant dams. HYDRO 2019 Porto. Portugal, Porto, Portugal, HYDRO 2019: 1-10.

VONKEMAN JK, SAWADOGO O, BOSMAN DE, BASSON GR. Hydrodynamic modelling of extreme flood levels in an estuary due to climate change. SEDHYD 2019 Conference, Reno, USA, SEDHYD 2019: 1-15.

WALLIS SG, BRINK IC. On the influence of Numerical Methods for the Advection Dispersion Model on Estimated Longitudinal dispersion Coefficients. In: Haldenwang R (ed.) 19th International Conference on TRANSPORT AND SEDIMENTATION OF SOLID PARTICLES, Cape Town, South Africa, Wydawnicto Uniwersytrtu Przyrodniczego we Wroclawiu,Poland 2019: 253-260.

National Proceedings

BASSON GR, SAWADOGO O, VONKEMAN JK. Reservoir sedimentation analysis of the proposed Noordoewer / Viooldrift dam on th Orange river and evaluation of sediment control mitigation measures. Africa 2019, Windhoek, Namibia, The International Journal on Hydropower & Dams 2019: 1-16.

BOSMAN A, BASSON GR. Rock Scour Hole Equilibrium Geometry Prediction for plunging jets at Dams. In: Hattingh LC (ed.) Sancold 2019 Conference, Benoni, Gauteng, South Africa, SANCOLD 2019 2019: 1-10.

BRAUNE EG, DU PLESSIS JA. Stochastic daily time – step conjunctive water use model for municipalities. IMESA 83rd Annual Conference, Durban, South Africa, Novus Print T/A 3S Media 2019: 86-91.

SAAYMAN RL, BASSON GR. Energy Dissipation by Flares at uncontrolled concrete dam Spillways with high unit Discharges. In: Hattingh LC (ed.) Sancold 2019 Conference, Benoni, Gauteng, South Africa, SANCOLD 2019 2019: 1-10.

SAWADOGO O, BASSON GR. 3D CFD Modelling of Reservoir Sedimentation Pressure Flushing at Hydropower Dams. In: Hattingh LC (ed.) Sancold 2019 Conference, Benoni, Gauteng, South Africa, SANCOLD 2019 2019: 1-11.

VAN DER SPUY LR, BASSON GR, BOSMAN DE. Low-Level Dam outlets Hydraulic Design Optimisation for the Flushing of Sediment. In: Hattingh LC (ed.) Sancold 2019 Conference, Benoni, Gauteng, South Africa, SANCOLD 2019 2019: 1-12.

VONKEMAN JK, BASSON GR. Upgrade of the Sir Lowry’s Pass river with a series of weirs and berms to allow urban development on the floodplans. In: Hattingh LC (ed.) Sancold 2019 Conference, Benoni, Gauteng, South Africa, SANCOLD 2019 2019: 1-9.

VONKEMAN JK, BOSMAN DE, BASSON GR. Investigation of the impacts of the proposed Noordoewer / Vioolsdrift dam on the Orange river estuary in Namibia and South Africa. Africa 2019, Windhoek, Namibia, The International Journal on Hydropower & Dams 2019: 1-16.

VONKEMAN JK, HAGEN DJ, BASSON GR. Design and Construction of the Holsloot Diversion works on an alluvial Foundation. In: Hattingh LC (ed.) Sancold 2019 Conference, Benoni, Gauteng, South Africa, SANCOLD 2019 2019: 1-10.

2018

Journal Articles

BRINK IC, KAMISH W. Associations between stormwater retention pond parameters and pollutant (suspended solids and metals) removal efficiencies. Water SA 2018; 44(1):45-53.

CALITZ G, BASSON GR. The effect of aeration through an internal gallery of a dam on the cavitation risk of Roberts splitters. Journal of the South African Institution of Civil Engineering  2018; 60(1):31-43.

DU PLESSIS JL, FAASEN B, JACOBS HE, KNOX AJ, LOUBSER C. Investigating wastewater flow from a gated community to disaggregate indoor and outdoor water use. Journal of Water Sanitation and Hygiene for Development 2018; 8(2):238-245.

DU PLESSIS JL, JACOBS HE. Analysis of water use by gated communities in South Africa. Water SA 2018; 44(1):130-135.

MAKWIZA CN, FUAMBA M, HOUSSA F, JACOBS HE. Estimating the impact of climate change on residential water use using panel data analysis: a case study of Lilongwe, Malawi. Journal of Water Sanitation and Hygiene for Development 2018; 8(2):217-226.

MEYER D, JACOBS HE, WESTMAN T, MCKENZIE R. The effect of controlled pressure adjustment in an urban water distribution system on household demand. Journal of Water Supply Research and Technology-Aqua 2018; 67(3):218-226.

RAUTENBACH C, THERON AK. Study of the Durban Bight shoreline evolution under schematised climate change and sand-bypassing scenarios. Journal of the South African Institution of Civil Engineering 2018; 60(4):2-15.

SIWILA S, BRINK IC. A small-scale low-cost water treatment system for removal of selected heavy metals, bacteria and particles. Water Practice and Technology 2018; 13(2):446-459.

SIWILA S, BRINK IC. Comparative analysis of two low cost point-of-use water treatment systems. Water Practice and Technology 2018; 13(1):79-90.

VAN DER MERWE ISW, BRINK IC. Development of a deterministic design model for a high- rate algal pond . Water SA 2018; 44(4):612-623.

International Proceedings

BOTHA BE, JACOBS HE, TERBLANCHE U. Clothes washing as household end-use: comparison of different appliance models in view of expected water savings. 1st International WDSA/CCWI 2018 Joint Conference, ontario, Canada, OJS/PKP 2018: 1-9.

DU PLESSIS JA. Integrated water management at local government level for Southern Africa. In: Singh V, Yadav S, Yadava RN (eds.) Water Resources Management: ICWEES-2016 (International Conference Water, Environment, Energy & Society), Singapore, Singapore, Springer 2018: 209-230.

ILEMOBADE AA, JACOBS HE, MEYER BE. Sorting High Temporal Resolution End-Use Data-A Pleasurable Headache. 1st International WDSA/CCWI 2018 Joint Conference, Ontario, Canada, JS/PKP 2018: 1-8.

JACOBS HE, BOTHA BE, BLOKKER EJM. Household hot water temperature-an analysis at end-use level. 1st International WDSA/CCWI 2018 Joint Conference, Ontario, Canada, JS/PKP 2018: 14.

SAWADOGO O, BASSON GR. Sediment Yield Modelling Considering Future Land Use Change: Case Study of The Usuthu River Catchment in South Africa and Swaziland. 26th INTERNATIONAL CONGRESS ON LARGE DAMS, Vienna, Austria, CRC Press/Balkema 2018: 508-527.

National Proceedings

DREYER JS, BASSON GR. Investigation of the shape of low-level outlets at hydropower dams for local pressure flushing of sediments. Sustainable Dam Engineering In An Ever-Changing World, Somerset We, South Africa, South African National Committee on Large Dams 2018: 107-116.

KLEYNHANS MT, BASSON GR, SAWADOGO O, SHAND M, GORGENS A, ILUNGA R. Hydrodynamic modelling of extreme flood flow patterns and sediment dynamics for the design of a flood protection levee in Malawi . Sustainable Dam Engineering In An Ever-Changing World, Somerset West, South Africa, South African National Committee on Large Dams 2018: 177-187.

SAWADOGO O, BASSON GR. Sediment yield and reservoir sedimentation modelling of the proposed polihali reservoir, Lesotho (LHWP Phase II). Sustainable Dam Engineering In An Ever-Changing World, Somerset West, South Africa, South African National Committee on Large Dams 2018: 135-144.

SCHOONEES JS, THERON AK. Small coastal stormwater outlets: literature review and design guidelines. 82nd IMESA Conference, Port Elizabeth, South Africa, 3S Media 2018: 1-13.

THERON AK, BASSON GR. Reservoir sedimentation and potential impact of the proposed smithfield dam on the Umkhomazi river on the coastal sediment budget and shoreline stability. Sustainable Dam Engineering In An Ever-Changing World, Somerset West, South Africa, South African National Committee on Large Dams 2018: 125-134.

VONKEMAN JK, BASSON GR, PETZER J. Hydraulic design of the partially lined stilling basin of the proposed Xhora dam. Sustainable Dam Engineering In An Ever-Changing World, Somerset West, South Africa, South African National Committee on Large Dams 2018: 373-382.

VONKEMAN JK, BASSON GR. Hydraulic design aspects of the proposed holsloot-Brandvlei dam diversion upgrade in the Western Cape. Sustainable Dam Engineering In An Ever-Changing World, Somerset West, South Africa, South African National Committee on Large Dams 2018: 19-29.

2017

Journal Articles

BLERSCH CL, DU PLESSIS JA. Planning for Desalination in the Context of the Western Cape Water Supply System. Journal of the South African Institution of Civil Engineering 2017; 59(1):11-21.

DU PLESSIS JA, SCHLOMS B. An Investigation into the evidence of Seasonal Rainfall Pattern Shifts in the Western Cape, South Africa. Journal of the South African Institution of Civil Engineering 2017; 59(4):47-55.

MAKWIZA CN, JACOBS HE. Sound Recording to Characterize Outdoor Tap Water. JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA 2017; 66(6):392-402.

MSADALA V, BASSON GR. Revised regional sediment yield prediction methodology for ungauged catchments in South Africa. Journal of the South African Institution of Civil Engineering 2017; 59(1021-2019):28-36.

NEL N, JACOBS HE, LOUBSER C, DU PLESSIS JA. Supplementary household water sources to augment potable municipal supply in South Africa. Water SA 2017; 43(4):553-562.

STRIJDOM JL, SPEIGHT V, JACOBS HE. An assessment of sub-standard water pressure in South African potable distribution systems. Journal of Water Sanitation and Hygiene for Development 2017; 7(4):557-567.

International Proceedings

BOTHA BE, JACOBS HE, BIGGS B, ILEMOBADE AA. Analysis of shower water use and temperature at a South African University Campus. 15th International Computing & Control for the Water Industry Conference (CCWI 2017), Sheffield, United Kingdom, Figshare 2017: F64, 8 pages.

CALITZ G, BASSON GR. The effect of local aeration of Roberts splitters on cavitation risk. 85th Annual Meeting of International Commission on Large Dams, Prague, Czech Republic, Czech National Committee on Large Dams 2017: 190-200.

DENYS FJM, BASSON GR, STRASHEIM JAVB. Fluid Structure Interaction of Piano Key Weirs. THE THIRD INTERNATIONAL WORKSHOP ON LABYRINTH AND PIANO KEY WEIRS 2017; Fluid Structure Interaction of Piano Key Weirs-PKW 2017, QUI NHON, Vietnam, CRC Press/Balkema, an imprint of the Taylor & Francis Group 2017: 119-126.

JACOBS HE, ILEMOBADE AA, BOTHA BE. End-use estimation of water demand within certain residential categories in the city of Johannesburg. 15th International Computing & Control for the Water Industry Conference (CCWI 2017), Sheffield, United Kingdom, Figshare 2017: F101, 10 pages.

KOEN J, BOSMAN DE, BASSON GR. Large Unit Discharge stepped spillway designs with crest piers and flares. SANCOLD Annual Conference 2017, Centurion, South Africa, Waiting on correspondence 2017: 1-10.

SAWADOGO O, BASSON GR. 3D Fully Coupled Numerical Modelling of Local Sediment Flushing Scour at Dam Bottom Outlets for Sustainable Hydropower Operation. In: Wieprecht S, Haun S, Weber K, ET AL (eds.) River Sedimentation: Proceedings of the 13th International Symposium on River Sedimentation, Stuttgart, Germany, CRC Press/Balkema 2017: 1154 – 1160.

TULSI K, SCHOONEES JS, RUTHENAVELU M, DAVIDS G, VONK R, STROH F, HERRINGTON N. Three-Dimensional Method for Monitoring Damage to Dolos Breakwaters. In: Lynett P (ed.) Proceedings of 35th Conference on Coastal Engineering (Coastal Engineering Proceedings), Antalya, Turkey, Coastal Engineering Research Council 2016: Structures 48, 14 pages.

VONKEMAN JK, BASSON GR, SMIT GJF. Hydro-Morphodynamic Modelling of Local Bridge Pier Scour in Alluvial Beds. 18th International Conference on Transport & Sedimentation of Solid, Prague, Czech Republic, Wroclaw University of Environmental and Life Sciences 2017: 377-384.

Chapters in Books

RAUTENBACH C, THERON AK, JOUBERT W, VAN NIEKERK L. Coastal Zone. In: Davis-Reddy CL (ed.) Climate Risk and Vulnerability: A Handbook for Southern Africa (2nd Edition), Council for Scientific and Industrial Research, Pretoria, South Africa, 2017: 91-99.

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