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22 April 2025 | Story André Damons | Photo Supplied
Dr Tafadzwa Maramura
Dr Tafadzwa Clementine Maramura is a Senior Lecturer and NRF-Rated Researcher in the Department of Public Administration and Management at the UFS.

With roughly half the world’s population experiencing severe water scarcity for at least part of the year, according to the UN World Water Development Report 2024, a researcher from the University of the Free State (UFS) seeks to understand how South Africa and the rest of the African continent can ensure that every person has access to water.

Besides Dr Tafadzwa Clementine Maramura, Senior Lecturer and NRF-Rated Researcher in the Department of Public Administration and Management at the UFS, research focusing on service delivery, especially delivery of water to the most vulnerable and poorest households, her work also focuses on the water-health nexus. In February she was appointed the Secretary for the Institutional Governance and Regulations Framework – a sub-specialist group for the International Water Association (IWA), becoming the first black African female to be appointed to this position.

According to statistics quoted by Greenpeace, 5.52 billion people out of a population of 7.78 billion in 186 countries face water insecurity, of which, 1.34 billion are Africans, accounting for more than 90% of the continent’s population. The United Nations World Water Development Report 2024: water for prosperity and peace; facts, figures, and action examples state that as of 2022, 2.2 billion people were without access to safely managed drinking water.

 

Research focus

With this, and with the Sustainable Development Goals (SDGs) – especially Goal 6 (clean water and sanitation) – in mind, Dr Maramura seeks to understand how South Africa and the rest of Africa can ensure that everyone gets access to this particular resource. “My research focuses on water governance and sustainable service delivery, public policies, and the green economy in the African, as well as the South African, context. What I found is interesting and really saddening at the same time. When you break it down, you realise that one in every three people in Africa don’t have access to potable water.

“Water is a basic human right, you can survive without electricity and other luxuries, but not without water. Each time you brush your teeth or flush your toilet with at least 15 litres of clean water or you are watering your garden with clean water, there are people that actually don’t have access to basic drinking water,” says Dr Maramura.

She is also investigating what the government is doing to ensure it delivers on this service it is mandated to, as South Africa has all the policies in place, and the best constitution in the world, but still the poor and most vulnerable communities do not have water.

“Access to clean water is not just a basic need; it is a matter of dignity, equality, and survival. As a young African woman, through my research, I see first-hand how the burden of water scarcity falls disproportionately on women and girls, robbing us as women, of education, economic opportunities, and health.

“But we are not just victims – we are leaders in this fight. By empowering women and investing in sustainable water solutions, we can transform our communities and break the cycle of poverty. The time for action is now because water is life, and every African deserves it.”

 

The water-health nexus

Dr Maramura has book chapters coming out in June this year that focus on the water-health nexus in failed states, thereby merging SDG 3 and 6 on health and water respectively. Water plays an indispensable role in the world as it is important for accomplishing several other SDGs, such as zero hunger, poverty eradication, good health and well-being, and affordable and clean energy. It all depends on the achievement of goal 6.

Says Dr Maramura: “You cannot solve problems in isolation; you cannot look at the water problem in isolation. If you have a water problem, you have a health and education problem because kids can’t go to school if there is no water. Hospitals can’t function when there is no water.

“SDG 3 speaks to health and SDG 6 speaks to water and that is where the nexus is, nexus meaning connection between water and health. How can we ensure that we merge the two together and ensure researchers working on health and water can find common ground to address any challenges arising from the lack of water so that we don’t have these health issues?”

South Africa is an upper-middle-income country but still struggles to deliver potable water to everyone and many communities in the country still rely on ventilated pit latrines due to limited access to modern sanitation facilities. With the deadline for achieving the 17 SDGs only five years away, South Africa is at risk of failing to achieve the SDGs.

 

Solving the water problems

According to Dr Maramura, there is no magic wand that can be used to solve all the country's water problems, but a collaborative and comprehensive effort is needed. “There is work that needs to be done. The government, private sector, the communities, as well as other role players need to work together. South Africa is a water-stressed country with rainfall below the global average. We realised that we have scarce groundwater resources.

“The community needs to understand, participate, and be aware of how much damage we can do by just drilling boreholes and digging wells. The private sector needs to know what it is that they can do to ensure that they also play a part through their corporate social responsibility and philanthropic dimensions in assisting the community.”

From the government side, she says, the policies are there so the government needs to consult with the communities, the private sector, and all other relevant stakeholders. They need to involve affected communities and after consultations, they need to engage these communities because they understand their problem best.

News Archive

Research eradicates bacteria from avocado facility
2017-01-17

 Description: Listeria monocytogenes Tags: Listeria monocytogenes

Listeria monocytogenes as seen under an electron
microscope. The photo was taken with a transmission
electron microscope at the microscopy unit of the UFS.
Bacteriophages (lollipop-like structures) can be seen
next to the bacterial cells.
Photo: Supplied

“The aim of my project was to identify and characterise the contamination problem in an avocado-processing facility and then to find a solution,” said Dr Amy Strydom, postdoctoral fellow in the Department of Microbial Biochemical and Food Biotechnology at the University of the Free State (UFS).

Her PhD, “Control of Listeria monocytogenes in an Avocado-processing Facility”, aimed to identify and characterise the contamination problem in a facility where avocados were processed into guacamole. Dr Strydom completed her MSc in food science in 2009 at Stellenbosch University and this was the catalyst for her starting her PhD in microbiology in 2012 at the UFS. The research was conducted over a period of four years and she graduated in 2016. The research project was funded by the National Research Foundation.

The opportunity to work closely with the food industry further motivated Dr Strydom to conduct her research. The research has made a significant contribution to a food producer (avocado facility) that will sell products that are not contaminated with any pathogens. The public will then buy food that is safe for human consumption.


What is Listeria monocytogenes?

Listeria monocytogenes is a food-borne pathogenic bacterium. When a food product is contaminated with L. monocytogenes, it will not be altered in ways that are obvious to the consumer, such as taste and smell. When ingested, however, it can cause a wide range of illnesses in people with impaired immune systems. “Risk groups include newborn babies, the elderly, and people suffering from diseases that weaken their immune systems,” Dr Strydom said. The processing adjustments based on her findings resulted in decreased numbers of Listeria in the facility.

The bacteria can also survive and grow at refrigeration temperatures, making them dangerous food pathogens, organisms which can cause illnesses [in humans]. Dr Strydom worked closely with the facility and developed an in-house monitoring system by means of which the facility could test their products and the processing environment. She also evaluated bacteriophages as a biological control agent in the processing facility. Bacteriophages are viruses that can only infect specific strains of bacteria. Despite bacteriophage products specifically intended for the use of controlling L. monocytogenes being commercially available in the food industry, Dr Strydom found that only 26% of the L. monocytogenes population in the facility was destroyed by the ListexP100TM product. “I concluded that the genetic diversity of the bacteria in the facility was too high and that the bacteriophages could not be used as a control measure. However, there is much we do not understand about bacteriophages, and with a few adjustments, we might be able to use them in the food industry.”

Microbiological and molecular characterisation of L. monocytogenes

The bacteria were isolated and purified using basic microbiological culturing. Characterisation was done based on specific genes present in the bacterial genome. “I amplified these genes with polymerase chain reaction (PCR), using various primers targeting these specific genes,” Dr Strydom said. Some amplification results were analysed with a subsequent restriction digestion where the genes were cut in specific areas with enzymes to create fragments. The lengths of these fragments can be used to differentiate between strains. “I also compared the whole genomes of some of the bacterial strains.” The bacteriophages were then isolated from waste water samples at the facility using the isolated bacterial strains. “However, I was not able to isolate a bacteriophage that could infect the bacteria in the facility.

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