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'The closest I will come to doing magic’

12 April 2019 | Story Leonie Bolleurs | Photo Johan Roux

The post-school life of Francois de Beer, one of the graduates in the Faculty of Natural and Agricultural Sciences who obtained his qualification in Chemistry and Biochemistry during the April graduation ceremonies, can be seen as one great act of ‘magic’. Other people may describe it as coincidence with a couple of miracles as the end result.

An opportunity

After completing his schooling at Hoërskool Fichardtpark in 2008, Francois decided to study at the University of the Free State (UFS). “Kovsies gave me the opportunity when nobody else would,” said Francois.

He did not have Maths subjects at school but wished to study in a Science field. “It is the closest one will ever come to doing magic,” he said.

The human element

Francois, who initially did not perform very well academically, did a bridging course in Mathematics and since then achieved distinctions in all his subjects. He related his story: “I did not have any Maths subjects at school, therefore it was very difficult for me to get to this path. The big difference was that Ms Elzmarie Oosthuizen from the UFS bridging programme saw something in me when nobody else did. She gave me the opportunity to do the Mathematics course, after which I was able to further continue on the Science path.”

“I would definitely recommend the UFS to other prospective students. I think Kovsies has a human element that really looks after students,” Francois said.

Francois is currently pursuing his postgraduate studies in Chemistry. He wants to make a difference in the lives of other people, just as others made a difference in his life.

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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