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02 October 2019 | Story Ruan Bruwer | Photo Hannes Naudé
Pakiso Mthembu and Prof Prakash Naidoo
Pakiso Mthembu (right) receives the trophy as the University of the Free State Senior Sportsman of the Year from Prof Prakash Naidoo, Vice-Rector: Operations. Khanyisa Chawane (Senior Sportswoman of the Year) and Sne Mdletshe (Junior Sportswoman of the Year) was unable to attend the awards function.
Pakiso Mthembu was recognised for his performances in cross-country and Khanyisa Chawane for her feats on the netball court at the KovsieSport Awards function on Tuesday night.

The two were honoured as the University of the Free State’s Senior Sportsman and Sportswoman of the Year for 2019. Achievements between 1 October 2018 and 30 September 2019 were taken into consideration.

Mthembu was South Africa’s second-best senior male athlete at the IAAF World Cross Country Championships in Denmark earlier this year. He also came second in the senior men’s 10 km category of the South African Cross Country Championships and won a bronze medal at the University Sport South Africa Championships in the 10 000 m. It was the seventh consecutive year and ninth time in the last ten years that the men’s winner came from the athletics code.

Chawane has played in 14 of the last 17 tests for the Proteas. She was a member of the World Cup team in July, where they finished fourth – their best performance in 24 years. She also represented the SA Fast5 team and was named as the player of the tournament in the 2018 Varsity Netball competition.

The Junior Sportswoman of the Year award went to another netballer, Sne Mdletshe. She was the co-captain of the SA U20 team for the Africa Union Sport Council Region 5 games in Botswana, which was won by the team. At the National Championship, she was named the best centre-court player. There was no winner in the Junior Sportsman of Year category this year.

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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