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24 May 2021 | Story Xolisa Mnukwa
The 2021 Kovsie ACT Eco-vehicle race puts students’ sustainable energy and critical thinking skills to the test.

The University of the Free State (UFS) Division of Student Affairs’ (DSA) Director of Student Life, Dr WP Wahl, believes the knowledge and skills that students have gained through participating in the 2021 Eco-vehicle project will position them more optimally in the future world of work. “We are also tremendously grateful for the project funding received from merSETA; without their support, none of this would have been possible,” he remarked.

The Kovsie ACT Eco-vehicle race, in conjunction with the overall programme, was established to encourage students to learn more about the technology and logic behind sustainable energy sources and how this can influence the future global society.

This year’s events witnessed students competing according to their UFS residence teams, with Sonnedou, Legatum, Kestell (SonLeTell); Soetdoring, Beyers Naude, Arista (Soetbeyrista); and Roosmaryn, Kagiso, Karee (Kar-is-myn) ending in first, second, and third place respectively, obtaining the highest scores for the races they competed in.

Anton Calitz, Electrical Engineer in University Estates who was the announcer on the day, described the event as one that exceeded his wildest expectations. “From a sustainable energy point of view, the eco-vehicle race results really turned the tables, with lower energy usage per lap being successfully recorded – as anticipated,” he further added.

Andre van Wyk, Client Liaison Officer of merSETA (Manufacturing, Engineering and Related Services Seta) for the Free State and Northern Cape – as one of the sponsors of the innovative programme – extended warm congratulations to the UFS for hosting an outstanding event. He further applauded the university for its resourcefulness in virtually adding electronic media broadcasts to extend the event to the entire UFS community.

“The Kovsie ACT Eco-vehicle programme was eye-opening and exposed me to the broad field of electronics. It definitely came as a challenge – one I had not anticipated on that level, because at times I couldn’t even see what all the building was leading to, but I just had to put my mind and hands to work – it pushed me to think critically and creatively. I was honoured to have been part of this entire experience and I’m grateful to Anton and his team, as well as the Kovsie ACT office, for being a constant support structure throughout the process, as it was not easy.” 

These were the humble words of Sinegugu Sibisi, a University of the Free State (UFS) student who was part of the 2021 Kovsie ACT Eco-vehicle race, where sustainable energy was at the order of the day.

For more information about the Kovsie ACT eco-vehicle skills programme, email ACT at ACT@ufs.ac.za
 

 

News Archive

UFS venture cleans up acid mine drainage
2015-07-06

The system that puts oxygen back into the water.

Photo: Supplied

South Africa is one of the most important mining countries in the world, beginning in the 1870s. Although the mining industry has been responsible for significant development and employment, it pollutes the environment and waters sources. Through the joint effort of a well-known mining company, the University of the Free State, and the Technology Innovation Agency (UFS/TIA) SAENSE Group, a new treatment for Acid Mine Drainage (AMD) has been developed.

The system treats the major contaminants found in acid mining wastewater effectively.  
 
The UFS remediation systems use a reservoir tank into which the AMD is pumped. The water then flows passively (without using energy) to the Barium Carbonate Dispersed Alkaline Substrate (BDAS) system. The metals and anions in the AMD react chemically with the barium carbonate and precipitate (form solids). The solids stay in the tank while the clean water is released.

The efficacy and applicability of the research was demonstrated on site in Belfast, Mpumalanga where the team constructed a pilot plant in July 2014. This patented technology has treated 1 814 400 litres of Acid Mine Drainage to date with an outflow water quality that satisfies the South African National Standards (SANS) 241:2006 & 2011 regulations for drinking water.   

Rohan Posthumus from the (UFS/TIA) SAENSE Group said: “At this stage, we do not recommend that the water should be used as drinking water, but certainly it can lower water usage in mines while finding application in dust suppression of washing processes. The team would like to complete a full characterisation of the final released water. There are currently no toxic by-products formed, and even very basic filtration can make the outflow drinking water.”

Prof Esta van Heerden’s research group from the Department of Microbial, Biochemical, and Food Biotechnology has been working on AMD research for some time, but the development of the BDAS system was started in 2013 by post-doctoral student, Dr Julio Castillo, and his junior researcher, Rohan Posthumus.

The data from the BDAS system have led to two publications in peer-reviewed journals as well as a registered patent.

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