Water resources and human health: Recent submissions

Now showing items 1-20 of 673

Soil water balance models for determining crop water and irrigation requirements and irrigation scheduling focusing on the FAO56 method and the dual Kc approach

Pereira, LS; Paredes, P; Jovanovic, Nebojsa (Elsevier, 2020-11)

This study reviews soil water balance (SWB) model approaches to determine crop irrigation requirements and scheduling irrigation adopting the FAO56 method. The Kc-ETo approach is discussed with consideration of baseline ...
A review of strategies, methods and technologies to reduce non-beneficial consumptive water use on farms considering the FAO56 methods

Jovanovic, Nebojsa; Pereira, LS; Paredes, P; Pocas, I; Cantore, D; Todorovic, M (Elsevier, 2020-09)

In the past few decades, research has developed a multitude of strategies, methods and technologies to reduce consumptive water use on farms for adaptation to the increasing incidence of water scarcity, agricultural droughts ...
The effectiveness of riparian zones in mitigating water quality impacts in an agriculturally dominated river system in South Africa

Petersen, Chantel R; Jovanovic, Nebojsa; Grenfell, MC (NISC, 2020-06)

This study evaluates relationships between contrasting land uses representing an anthropogenic impact gradient in a coastal agricultural catchment, and riparian vegetation, as reflected in changes in nutrient dynamics and ...
The efficiency of a low-cost hydrogen sulphide (H2S) kit as an early warning test for assessing microbial rainwater quality and its correlation with standard indicators microorganisms

Malema, Mokaba S; Mwenge Kahinda, Jean-Marc; Abia, ALK; Tandlich, R; Zuma, BM; Ubomba-Jaswa, E (Walter de Gruyter GmbH, 2019-12)

Testing microbial quality of the harvested rainwater remains a challenge in many countries. The H2S test kit is a low-cost microbiological field-based test which can be used in areas where water testing facilities are ...
Treated acid mine drainage and stream recovery: Downstream impacts on benthic macroinvertebrate communities in relation to multispecies toxicity bioassays

Steyn, Maronel; Oberholster, PJ; Botha, AM; Genthe, Bettina; Van den Heever-Kriek, PE; Weyers, C (Elsevier, 2019-04)

The success and long term effectiveness of extensive and expensive engineering solutions to restore streams impacted by Acid Mine Drainage (AMD) is rarely tested. Concentrations of pollutants were measured in water along ...
Estimating crop coefficients for apple orchards with varying canopy cover using measured data from twelve orchards in the Western Cape Province, South Africa

Mobe, Nompumelelo T; Dzikiti, Sebinasi; Zirebwa, SF; Midgley, SJF; Von Loeper, W; Mazvimavi, D; Ntshidi, Zanele; Jovanovic, Nebojsa (Elsevier, 2020-04)

The FAO-56 crop coefficient (Kc) approach is widely used for making irrigation decisions. Allen and Pereira (2009) extended this approach by developing a method for estimating Kc using a density coefficient (Kd), which is ...
The production of bio-energy from a consortium of algal species - Proof of concept trials at the rural Brandwacht domestic waste water treatment plant, South Africa

Oberholster, Paul J; Steyn, Maronel (Phycological Society of Southern Africa, 2019-05)

With increased environmental pollution from untreated or partially treated wastewater and resultant eutrophication, there is an increased need for remediation. It is foreseen that treatment of wastewater will form part of ...
Field quantification of the water footprint of an apple orchard, and extrapolation to watershed scale within a winter rainfall Mediterranean climate zone

Gush, Mark B; Dzikiti, Sebinasi; Van der Laan, M; Steyn, Maronel; Manamathela, S; Pienaar, Harrison H (Elsevier, 2019-06)

Field scale quantifications of the water footprints (WF) of crops, based on actual measurements, provide valuable and detailed information for on-farm water use management. However, watershed-based WF assessments are more ...
Comparison of two remote sensing models for estimating evapotranspiration: algorithm evaluation and application in seasonally arid ecosystems in South Africa

Dzikiti, Sebinasi; Jovanovic, Nebojsa; Bugan, Richard DH; Ramoelo, Abel; Majozi, Nobuhle P; Nickless, Alecia; Cho, Moses A; Le Maitre, David C; Ntshidi, Zanele; Pienaar, Harrison H (Springer; Science Press, 2019-09)

Remote sensing tools are becoming increasingly important for providing spatial information on water use by different ecosystems. Despite significant advances in remote sensing based evapotranspiration (ET) models in recent ...
The impacts of commercial plantation forests on groundwater recharge: A case study from George (Western Cape, South Africa)

Tuswa, N; Bugan, Richard DH; Mapeto, T; Jovanovic, Nebojsa; Gush, Mark B; Kapangaziwiri, Evison; Dzikiti, Sebinasi; Kanyerere, T; Xu, Y (Elsevier, 2019-08)

The benefits of the commercial plantation forestry sector (income generation and job provision) come at considerable environmental costs, particularly the impact of the industry on water resources. Plantation forests exhibit ...
Model of forensic hydrography

Kasum, J; Pilic, M; Jovanovic, Nebojsa; Pienaar, Harrison H (HRCAK, 2019-10)

Forensic science plays a vital role in the work of judicial bodies. The contents, knowledge, and specialized expertise permit the identification of facts essential to law enforcement and judicial disputes. Hydrography is ...
Transdisciplinary innovation in irrigated smallholder agriculture in Africa

Froebrich, J; Ludi, E; Bouarfa, S; Rollin, D; Jovanovic, Nebojsa; Roble, M; Ajmi, T; Albasha, R; Bah, S; Musvoto, Constansia D (Wiley Online Library, 2020-01)

Boosting the productivity of smallholder farming systems continues to be a major need in Africa. Challenges relating to how to improve irrigation are multi-factor and multisectoral, and they involve a broad range of actors ...
A theoretical study of 2D AlN on 3D C4H6N6Ni2 clathrate thermoelectric material composites

Kiarii, EM; Govender, Krishna; Govender, PP (Springer, 2019-11)

Clean and green renewable energy is of paramount importance in the world today. Ab initio calculations using density functional theory demonstrate that superlattice structures can result into lowering lattice thermal ...
Synthesis and characterization of polyaniline, polypyrrole and zero-valent iron-based materials for the adsorptive and oxidative removal of bisphenol-A from aqueous solution

Hlekelele, Lerato; Nomadolo, Nomvuyo E; Setshedi, Katlego Z; Mofokeng, Lethula E; Chetty, Avashnee S; Chauke, Vangane P (The Royal Society of Chemistry, 2019-05)

One pot synthesis of a polypyrrole, polyaniline and Fe(sup0) nano-composite (Fe0-PPY/PANI) was achieved by polymerizing aniline and pyrrole with FeCl(sub3) followed by the reduction of Fe(sup3)+ to Fe(sup0) with NaBH(sub4). ...
Impact of pressure-driven demand on background leakage estimation in water supply networks

Adedeji, KB; Hamam, Y; Abu-Mahfouz, Adnan MI (2019)

Increasing water demand due to urbanization creates a need to develop schemes for managing water supply networks (WSNs). In recent years, hydraulic modeling of WSNs has been used to assess the state of networks in terms ...
Solving management problems in water distribution networks: A survey of approaches and mathematical models

Bello, O; Abu-Mahfouz, Adnan MI; Haman, Y; Page, Philip R; Adedeji, KB; Piller, O (MDPI, 2019-03)

Modern water distribution networks (WDNs) are complex and difficult to manage due to increased level of urbanization, varying consumer demands, ageing infrastructure, operational costs, and inadequate water resources. The ...
Real-time dynamic hydraulic model of water distribution networks

Abu-Mahfouz, Adnan MI; Hamam, Y; Page, Philip R; Adedeji, KB; Anele, AO; Todini, E (MDPI, 2019-03)

The impact of climate change and increasing urbanisation throughout the world has forced water utility managers to increase the efficiency of water resources. Reduction of real (or physical) water losses plays a crucial ...
Selecting a GIS for a National Water Management Authority

Olivier, JJ; Greenwood, PH; Cooper, Antony K; McPherson, DR; Engelbrecht, R (ASPRS Publications, 1990)

Owing to the complex, inter-disciplinary nature of geographical information systems (GIS), and to the wide variety of commercial GIS software available, considerable effort is needed to select software and hardware which ...
The need to strategically manage CSP fleet development and water resources: A structured review and way forward

Duvenhage, F; Brent, AC; Stafford, William HL (Elsevier, 2019-03)

The rapid global growth in the use of renewable energy to reduce GHG emissions and mitigate climate change, through the inclusion of large amounts of PV and wind in existing electricity grids, has highlighted certain ...
Future CSP in South Africa – A review of generation mix models, their assumptions, methods, results and implications

Duvenhage, FD; Craig, OO; Brent, AC; Stafford, William HL (AIP Publishing, 2018-11)

South Africa has experienced great uncertainty in its electricity supply sector. Many energy system modeling efforts have been undertaken. This is to determine the most appropriate energy mix and manage uncertainty. We ...

Now showing items 1-20 of 673

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