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Browsing by Author "Genthe, Bettina"

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Advantages and disadvantages of the use of immunodetection techniques for the enumeration of micro-organisms and toxins in water

Author: Kfir, R ; Genthe, Bettina Date: 1993 The applications of immunological techniques to the analytical challenges presented by water pollution and its tremendous expansion during recent decades are reviewed. Examples of the immunodetection methods evaluated for their advantages and ... Read more
Antimicrobial resistance screening and profiles: A glimpse from the South African perspective

Author: Genthe, Bettina ; Ndlela, Luyanda L ; Madlala, Tebogo Date: Dec 2020 According to the Centre for Disease Dynamics Economics and Policy, South Africa represents a paradox of antibiotic management similar to other developing countries, with both overuse and underuse (resulting from lack of access) of antibiotics. ... Read more
Assessment of microbial infection risks posed by ingestion of water during domestic water use and full-contact recreation in a mid-southern African region

Author: Steyn, Maronel ; Jagals, P ; Genthe, Bettina Date: 2004 A customised Water-related Quantitative Microbial Risk Assessment (WROMRA) process was used to determine risk of infection to water ingested by users in the south-eastern Free State, South Africa. The WRQMRA consisted of an observed-adverse ... Read more
Atlantis Water Supply Scheme (AWSS) artificial recharge scientific and operational support

Author: Jovanovic, Nebojsa ; Bugan, Richard DH ; Israel, S ; Petersen, C ; Genthe, Bettina ; Steyn, Maronel ; Tredoux, G ; Allpass, D ; Bishop, R ; Marinus, V ; Flower, P Date: Oct 2012 Since the 1970s, the town of Atlantis, on the dry west coast of South Africa, has relied on an innovative process whereby wastewater and stormwater is transferred underground to be stored in an aquifer for future use. To ensure the long-term ... Read more
Atlas of industrial wastewater reuse potential in South Africa

Author: Steyn, Maronel ; Walters, Chavon R ; Mathye, Salamina M ; Ndlela, Luyanda L ; Thwala, Melusi ; Banoo, Ismail ; Tancu, Yolanda ; Genthe, Bettina Date: Mar 2021 The South African economy largely depends on mining and other large industries. According to the National Water Resources Strategy 2 (DWA, 2013a), the mining sector, with an estimated demand of about 5% of the country’s available water, is a ... Read more
Bulk scale industrial effluent reuse potential in South Africa

Author: Steyn, Maronel ; Walters, Chavon R ; Mathye, Salamina M ; Thwala, Melusi ; Banoo, Ismail ; Ndlela, Luyanda L ; Tancu, Yolanda ; Genthe, Bettina Date: Nov 2021 Rationale: Water scarcity, increased pollution, unprecedented population growth and climate change are collectively driving the need to reuse water with the aim to enhance water security, sustainability, and resilience. It is clear that South ... Read more
Cadmium in the Umtata River and the associated health impact of on rural communities who are primary users of water from the river

Author: Fatoki, OS ; Awofolu, OR ; Genthe, Bettina Date: Oct 2004 Trace levels of Cd were determined in Umata River which may affect human health. The levels of Zn were also determined since Zn can provide partial protection against the toxic effect of Cd in humans. The levels of Cd varied between trace and ... Read more
Change in diarrhoea trends and the increasing importance of microbiological water quality due to HIV/AIDS in South Africa

Author: Steyn, Maronel ; Genthe, Bettina Date: May 2009 Much attention is given to the recording of diarrhoea incidence among children under the age of 5. This is used as an indicator of health of the community since diarrhoea historically has a more profound effect on children and elderly people. ... Read more
A decision support tool for industrial water reuse in South Africa

Author: Steyn, Maronel ; Genthe, Bettina ; Banoo, Ismail ; Thwala, Melusi ; Roos, Thomas H ; Walters, Chavon R ; Ramakhwatho, F Date: Aug 2020 Water scarcity, increased pollution, unprecedented population growth and climate change are all driving the need to reuse water to secure the future of the country. It is clear that South Africa’s already strained water resources will become ... Read more
Defining episodes of diarrhoea: results from a three-country study in Sub Saharan Africa

Author: Wright, James A ; Gundry, SW ; Conroy, R ; Wood, D ; Du Preez, M ; Ferro-Luzzi, A ; Genthe, Bettina ; Kirimi, M ; Moyo, S ; Mutisi, C ; Ndamba, J ; Potgieter, N Date: Mar 2006 The study was conducted to assess the effect of definition of episode on diarrhoeal morbidity and to develop a means of adjusting estimates of morbidity for the definition of episode used. This paper reports on a cohort study of 374 children, ... Read more
Detection of enteric Adenoviruses in South-African waters using gene probes

Author: Genthe, Bettina ; Gericke, M ; Bateman, B ; Mjoli, N ; Kfir, R Date: 1995 Gene probes developed locally for both enteric Adenoviruses 40 and 41 were used to determine whether these viruses were present in both raw and treated waters. Approximately sixty water samples were concentrated by ultra filtration and analysed ... Read more
Discovering the secrets of the Olifants sediments

Author: Petersen, C ; Jovanovic, Nebojsa ; Genthe, Bettina Date: Jul 2012 The polluted Upper Olifants River, in Mpumalanga, has been the focus for many studies in recent years. However, a group of researchers from the CSIR are now also studying an element of the system which has to date been largely overlooked, ... Read more
Economic burden of diarrhoea in the Olifants Water Management Area, South Africa

Author: Steyn, Maronel ; Maherry, A ; Genthe, Bettina Date: Jul 2011 This presentation highlights the economic burden of diarrhoea in the Olifants Water Management Area, South Africa. It concludes that water pollution prevention is cheaper than diarrhoea treatment. Read more
An ecotoxicological screening tool to prioritise acid mine drainage impacted streams for future restoration

Author: Oberholster, Paul J ; Genthe, Bettina ; Hobbs, P ; Cheng, Po-Hsun ; De Klerk, Arno R ; Botha, A-M Date: May 2013 Streams impacted by acid mine drainage (AMD) typically present water exhibiting low pH and high metal concentrations. These factors result in the environmental degradation of watercourses. The objective of this study was to develop and evaluate ... Read more
Effect of type of water supply on water quality in a developing community in South Africa

Author: Genthe, Bettina ; Strauss, N ; Seager, J ; Vundule, C ; Maforah, F ; Kfir, R Date: 1997 Efforts to provide water to developing communities in South Africa have resulted in various types of water supplies being used. This study examined the relationship between the type of water supply and the quality of water used. Source (communal ... Read more
The environmental feasibility of low-cost algae-based sewage treatment as a climate change adaption measure in rural areas of SADC countries

Author: Oberholster, Paul J ; Cheng, Po-Hsun ; Genthe, Bettina ; Steyn, Maronel Date: Jul 2018 Employing specific algae treatment to treat municipal domestic wastewater effluent presents an alternative practice to improving water quality effluent of existing rural pond systems in Southern Africa. In the present study, domestic wastewater ... Read more
Estrogenic activity, chemical levels and health risk assessment of municipal distribution point water from Pretoria and Cape Town, South Africa

Author: Van Zijl, MC ; Aneck-Hahn, NH ; Swart, P ; Hayward, S ; Genthe, Bettina ; De Jager, C Date: Nov 2017 Endocrine disrupting chemicals (EDCs) are ubiquitous in the environment and have been detected in drinking water from various countries. Although various water treatment processes can remove EDCs, chemicals can also migrate from pipes that ... Read more
Focus on CSIR research in water resources: antimicrobial properties of copper and its effects on micro-organisms in drinking water distribution systems

Author: Genthe, Bettina Date: Aug 2007 This study demonstrates that copper is effective at reducing bacterial numbers at concentrations that are typically permitted in drinking water (depending on the guideline of the country). It has however highlighted the need for a better ... Read more
Focus on CSIR research in water resources: CSIR’S environmental human health risk assessment

Author: Genthe, Bettina Date: Aug 2007 Environmental health risk assessment deals with risks associated with manmade and natural environmental hazards. Environmental health risk assessment provides a means of estimating the probability of adverse health effects associated with ... Read more
Focus on CSIR research in water resources: water and human health research in CSIR

Author: Genthe, Bettina Date: Aug 2007 The Water and Human Health team researches water related science to address the CSIR’s mandate, national priorities and to improve quality of life for all. The overall aim of the research is to achieve a sustainable balance between the use ... Read more

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