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Putting an environmental spin on laundry days

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

News Archive

A new dawn for student governance

2011-09-02

Our SRC presidents: Richard Chemaly (Bloemfontein Campus) and Bongani Ncgaca (Qwaqwa Campus)
Photo: Hannes Pieterse

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The successful and peaceful completion of the University of the Free State’s (UFS) Student Representative (SRC) elections 2011 herals a new dawn for student governance with the announcement of the results today (1 September 2011).

The SRC elections at the Qwaqwa Campus were completed on 25 August 2011, while the elections at our Bloemfontein Campus took place on 29 and 30 August 2011.

“A new dawn heralds a new day when Richard Chemaly, the son of Lebanese immigrants becomes President of an SRC, as elected by students from all racial backgrounds and from across the student body at large. A new day has arrived when candidates could have won voter support across racial lines; a new day is here when all SRC members are now recognised leaders on the basis of academic accountability,” the Dean of Student Affairs, Mr Rudi Buys, says.

A new dawn has arrived; firstly, insofar as student elections for the choice of student leaders at the UFS now proceed according to a non-racial and a non-party political basis.

Not only did the SRC elections at both the Bloemfontein and Qwaqwa Campuses achieve its required quorum, with 31% (4 729 votes) and 50% (2 112 votes) voter turnout, respectively, but the SRC elected by students at the Bloemfontein Campus is 55% black and 45% white, and 60% female and 40% male. The numbers of votes gained by successful candidates also indicate that voters from all racial backgrounds have voted for their candidates of choice.

Secondly, a new dawn has arrived insofar as student governance occupied by only some student groups claiming to speak on behalf of all students has made way for direct voting for candidates by the broad student body and the threefold increase of student governance structures on campus.

Not only did all students at our Bloemfontein and Qwaqwa Campuses (a total of 15 173 and 4 257, respectively) have the opportunity to participate in voting directly, but nine additional Student Councils were established at our Bloemfontein Campus that each holds an ex officio seat on the SRC and allows for student governance in all the major student sectors of the student body, such as for postgraduate students, international students and all categories of student associations.

The various councils now established include the Student Academic Affairs Council, the Student Associations Council, the Postgraduate Student Council, the International Student Council, the Student Media Council, the Residences Student Council, the Commuter Student Council and the Rag Community Service Fundraising and Service Councils. In addition, all faculties also introduced student representative structures at departmental and faculty level in 2011 to ensure student participation in faculty management and governance.

The SRC members at the Bloemfontein Campus are:

Elective portfolios:
President: Mr Richard Chemaly
Vice-President: Mr Lefata David Maklein
Secretary: Ms Matshepo Ramokgadi
Treasurer: Mr Werner Pretorius
Arts & Culture: Ms Alta Grobelaar
Accessibility & Student Support: Mr William Clayton
First-generation Students: Ms Petre du Plessis
Media, Marketing & Liaison: Ms Biejanka Calitz
Sport: Mr Bonolo Thebe
Student Development & Environmental Affairs: Ms Busisiwe Madikizela
Transformation: Ms Qaqamba Mhlauli

Ex officio portfolios:
Dialogue & Ex officio: Associations Student Council: Mr Anesu Ruswa
Academic Affairs & Ex officio: Academic Affairs Student Council: Mr Jean Vermaas
Residence Affairs & Ex officio: Campus Residences Student Council: Ms Mpho Mokaleng
City student Affairs & Ex officio: Commuter Student Council: Ms Annemieke Plekker
Postgraduate Affairs & Ex officio: Postgraduate Student Council: Ms Glancina Mokone
International Affairs & Ex officio: International Student Council: Mr Pitso Ramokoatsi
Student Media Affairs & Ex officio: Student Media Council: Ms Nicole Heyns
RAG Community Service & Ex officio: RAG Fundraising Council: Ms Iselma Parker
RAG Community Service & Ex officio: RAG Community Service Council: Ms Motheo Pooe

In the Qwaqwa elections, SASCO achieved 36,84% of the vote, with SADESMO, PASMA and NASMO each achieving 29,73% and 18,56% and 12,74%, respectively .

Mr Bongani Ncgaca was elected as the President of the SRC at our Qwaqwa Campus, while the names of the SRC members at the campus will be announced on 7 September 2011.

The Central SRC will be established on 8 September 2011 by a joint sitting of the two SRCs.

The successful completion of the SRC elections at the Bloemfontein Campus follows a yearlong review process of student governance by a Broad Student Transformation Forum (BSTF) that consists of 59 delegations from student organisations and residences. The BSTF adopted independent candidacy for elective portfolios and additional student councils to provide ex officio seats on the SRC as the template for student governance, following the consideration of a series of benchmarking reports on student governance nationally and internationally.

The UFS Council adopted the new SRC Constitution, as drafted and submitted by the BSTF, on 3 June 2011.

Media Release
1 September 2011
Issued by: Lacea Loader
Director: Strategic Communication
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: news@ufs.ac.za

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