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23 November 2021 | Story Leonie Bolleurs | Photo Tania Allen
Dr Jana Vermaas and Ketshepileone Matlhoko are working on research that leaves your washing clean and fresh without the use of any detergents, which is also beneficial to the environment.

Cold water or hot water? Omo or Skip? Laundry blues is a reality in most households and when you add stains to the equation, then what was supposed to be part of your weekly household routine, becomes frustrating and time consuming. 

Researchers at the University of the Free State (UFS) are conducting research that is putting a whole new environmentally friendly spin on laundry day.

Sustainability and environmental conservation

Dr Jana Vermaas, Lecturer in the Department of Sustainable Food Systems and Development at the UFS, is passionate about textiles and sustainability – almost a decade ago, she conducted a study on the efficacy of anolyte as a disinfectant for textiles.

She describes the process: “During electrochemical activation, a dilute solution of natrium chloride/salt passes through a cylindrical electrolytic cell where the anodic and cathodic chambers are separated. Two separate streams of electrochemically activated water are produced. Anolyte as water was produced at the positive electrode and has a low pH, high oxidation-reduction potential and contains dissolved chloride, oxygen, and hydroxyl radical. It also has an antimicrobial effect.”

The benefits of this process are in line with her enthusiasm for environmental conservation. 

According to Dr Vermaas, the amount of water and chemicals used to clean textile articles is massive. “Chemicals used to disinfect, for example, hospital laundry, are hazardous. Not all laundries in the industry have a closed loop system or try to remove the chemicals before the wastewater is discarded.”

“Different amounts of detergents have various effects on our fauna and flora. Due to their low biodegradability, toxicity, and high absorbance of particles, detergents can reduce the natural water quality, cause pH changes in soil and water, lead to eutrophication (too many nutrients), reduce light transmission, and increase salinity in water sources.”

“But with the catholyte and anolyte process, water returns to its original status, which means that the water solution becomes inactive again after production where it existed in a metastable state while containing many free radicals and a variety of molecules for 48 hours. Thus, no chemicals are left in the wastewater. The water can therefore be recycled, not as potable water but, for example, to flush toilets or to water plants.

“We should do what we can to save water,” she says. 

Should you, like Dr Vermaas, also feel strongly about protecting the environment and want to obtain one of these machines that leaves your washing clean and fresh without the use of any detergents, you will be able to find such an appliance in South Arica. However, it does not come cheap. “It is a bit costly for residential use, but might be more accessible in the future,” states Dr Vermaas, who is of the opinion that it is a more sustainable option for commercial laundries.

Detergency properties and colourfastness 

Recently, more research has been conducted on this topic, but with a focus on the detergency properties of the catholyte to clean different textile fibres (natural and synthetic). Catholyte, she explains, is water produced at the negative electrode with a high pH, low oxidation-reduction potential, containing alkaline minerals. It also has surface active agents that increase the wetting properties, and it is an antioxidant. 

“A master’s student in the department, Ketshepileone Matlhoko, will be submitting her dissertation at the end of November on the possibility of using the catholyte as a scouring agent to clean raw wool,” says Dr Vermaas. 

The department is also conducting studies to investigate the influence of both catholyte and anolyte on colourfastness.

*Graphic: Production of electrolysed water (Nakae and Indaba, 2000). Diagram: Supplied



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Moshoeshoe - lessons from an African icon - by Prof Frederick Fourie
2004-11-03

(The full text of the article that appeared in City Press and Sunday Independent)

Our understanding of history informs our understanding of the present. No wonder the contestation over historical figures in South Africa’s past is so fierce and so divisive.
The question is: could it be any other way? I would like to think that it could; that black and white South Africans, across linguistic, cultural, religious and other divides, can develop a shared appreciation of our history – at least with certain periods and personalities as a starting point.

One such personality whose legacy I believe offers a possible platform for unifying our still divided country is King Moshoeshoe, who lived from 1786 to 1870, and is acknowledged as the founder of the Basotho.

King Moshoeshoe is the topic of a documentary that has been commissioned by the University of the Free State as part of its Centenary celebrations this year. It is part of a larger project to honour and research the legacy of Moshoeshoe. The documentary will be screened on SABC 2 at 21:00 on November 4th.

Moshoeshoe rose to prominence at a time of great upheaval and conflict in South Africa – the 19th century, a time when British colonialism was entrenching itself, when the Boer trekkers were migrating from the Cape and when numerous indigenous chiefdoms and groupings were engaged in territorial conquests. It was the time of the Difaqane, a period when society in the central parts of the later South Africa and Lesotho was fractured, destabilised and caught in a cycle of violence and aggression.

In this period Moshoeshoe displayed a unique and innovative model of leadership that resulted in reconciliation, peace and stability in the area that later became Lesotho and Free State. It made him stand out from many of his contemporaries and also caught the attention of his colonial adversaries.

Such an evaluation is not a judgment about which model of leadership is right and which is wrong, or which leader was better than another; but merely an attempt to explore what we can learn from a particular exemplar.
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Historians point to the many progressive leadership qualities displayed by Moshoeshoe which he used effectively in establishing the Basotho nation and in defending it.
First, there is his humanism and sense of justice worthy of any great statesman. Confronted by a situation in which cannibals murdered and devoured his grandfather, Moshoeshoe chose not to take revenge. Instead he opted to rehabilitate them and feed them as he believed hunger drove them to cannibalism.

Secondly, there is his skilful alliance-building with his contemporaries such as Shaka in an attempt to neutralize those rivals who were intent on attacking his followers. This is also displayed in the way he sought the protection of the British to keep the Boer forces at bay.
Thirdly, his emphasis on peaceful options is also seen in his defensive military strategy which saw him retreat to a mountain fortress to be able to protect and build a burgeoning nation in the face of the many forces threatening its survival.

Fourthly, there is his remarkable inclusivity and tolerance for diversity which saw him unite disparate groups of refugees from the violence and hunger that displaced them and then weld them into the Basotho nation. He also engaged with French missionaries, inviting them to stay with him and advise him on Western thought, technology and religion.
These are but some of the qualities which belie the notion that all 19th century African leaders were merely marauders and conquerors that gained their ascendancy through violence. Instead Moshoeshoe is a prime example of the human-centred, democratic and pluralist roots of South African, indeed African society.

The Moshoeshoe project that we have initiated (of which the documentary, called “The Renaissance King”, forms but one part) derives from our location as a university in the Free State, a province with a particular history and a particular political culture that developed as a result of this very model of leadership. This province has benefited tremendously from leaders such as Moshoeshoe and president MT Steyn, both of whom many observers credit with establishing a climate of tolerance, respect for diversity of opinion, political accommodation and peaceful methods of pursuing political objectives in the province. Their legacy is real – and Moshoeshoe’s role can not be overstated.
In addition the project derives from the University of the Free State being a site of higher learning in a broader geo-political sense. As a university in Africa we are called upon to understand and critically engage with this history, this context and this legacy.
Besides the documentary, the UFS is also planning to establish an annual Moshoeshoe memorial lecture which will focus on and interrogate models of African leadership, nation-building, reconciliation, diversity management and political tolerance.

In tackling such projects, there may be a temptation to engage in myth-making. It is a trap we must be wary of, especially as an institution of higher learning. We need to ask critical questions about some aspects of Moshoeshoe’s leadership but of current political leadership as well. Thus there is a need for rigorous academic research into aspects of the Moshoeshoe legacy in particular but also into these above-mentioned issues.
While the documentary was commissioned to coincide with the University of the Free State’s centenary and our country’s ten years of democracy, it is a project that has a much wider significance. It is an attempt to get people talking about our past and about our future, as a campus, as a province and as a country – even as a continent, given the NEPAD initiatives to promote democracy and good governance.

The project therefore has particular relevance for the continued transformation of institutions such as universities and the transformation of our society. Hopefully it will assist those who are confronted by the question how to bring about new institutional cultures or even a national political culture that is truly inclusive, tolerant, democratic, non-sexist, non-racial, multilingual and multicultural.

I believe that the Moshoeshoe model of leadership can be emulated and provide some point of convergence. A fractured society such as ours needs points of convergence, icons and heroes which we can share. Moshoeshoe is one such an African icon – in a world with too few of them.

Prof Frederick Fourie is the Rector and Vice-Chancellor of the University of the Free State

* The documentary on “Moshoeshoe: The Renaissance King” will be screened on SABC2 on 4 November 2004 at 21:00.

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