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12 April 2019 | Story Valentino Ndaba | Photo Charl Devenish
LJ van Zyl
“May the best team win the 2019 BestMed Pedometer Challenge!” said LJ van Zyl, Pedometer Challenge ambassador.

Participants in the 2019 BestMed Pedometer Challenge will start improving their health step by step after the University of the Free State (UFS) challenged the Stellenbosch University, Central University of Technology, and North-West University (NWU) to an eight-week walking competition.

South African 400-metre hurdles record-holder and the Pedometer Challenge ambassador, LJ van Zyl, embraced the initiative as an alternative method to achieve fitness. “I am so tired of running and this is great way to stay fit,” he said during the official launch on the UFS Bloemfontein Campus on 5 April 2019.

Inter-institutional fight for fitness

Last year, the UFS Division for Organisational Development and Employment Wellness in the Department of Human Resources led a UFS-only challenge that saw 60 teams of staff members log a total of 54 606 km in eight weeks. The division then challenged the NWU.

Together, the NWU and UFS walked 132 000 km. This year, the UFS is taking it one step further by challenging two more institutions.
  
Leading the way

“We aim to get South Africa active – starting with the UFS – by embracing fitness and health ourselves,” said Arina Engelbrecht, UFS Employee Wellness Specialist.

Participants on all fitness and activity levels will gun for a 200 000 km target over 10 weeks.

The challenge kicked off on the Bloemfontein Campus with a 3-km walk at the launch, leaving 199 997 km between the four universities for the rest of the eight-week challenge.

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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