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10 June 2019 | Story Ruan Bruwer | Photo Gerda Steyn Twitter
Gerda Steyn
Gerda Steyn, a former student at the University of the Free State, won her first Comrades race on Sunday, setting a new course record.

Winning the Comrades ultra-marathon is the greatest honour of her life and still feels unreal, said Gerda Steyn a day after winning the race in a record time.
 
The former Kovsie student had an incredible race on Sunday, completing the 86,83 km’s in a time of 05:58:54, which is a new record for women in the up run. It is more than 10 minutes faster than the previous record of 06:09:23 set in 2006.
 
It was also the fourth fastest Comrades time ever by a female in the 94-year history of the race.
 
Greatest honour of my life

 
“Being the Comrades winner is the greatest honour of my life. Thank you to an entire nation for carrying me to the line. It feels like a dream,” Steyn said.
 
The 29-year-old Steyn became the first woman in 30 years to win both the Comrades and Two Oceans in the same year. She also won the Two Oceans in 2018 and came second in the Comrades last year.
 
Steyn, who studied Quantity Surveying and Construction Management at the University of the Free State (UFS) between 2009 and 2012, said the record time was discussed beforehand.
 
I went for it
 
“We felt it was possible, but it wasn’t my main goal right from the start of the race. At the halfway mark, I saw it was possible and I went for it.”
 
According to Steyn, the media attention since her win is quite intense. “But I don’t complain. It is such an honour, so I do it with a smile.”
 
At the Two Oceans ultra-marathon in April, she missed out on the 30-year record time by just 53 seconds.
 
Prof Francis Petersen, UFS Rector and Vice-Chancellor, said Steyn was a proud ambassador of the university. “It is always important for me to see how our former students perform. I would like to congratulate her. Well done. She is carrying the Kovsie name with pride,” Prof Petersen said.
 

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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