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29 October 2018

Prof Stef Coetzee, former Rector and Vice-Chancellor of the University of the Free State (UFS), passed away in the Mediclinic Cape Gate on Saturday 27 October 2018. 

Prof Coetzee assumed duty as the 11th Rector and Vice-Chancellor of the UFS on 1 April 1997. He will be remembered for his drive to promote transformation at the UFS. During his time as Rector and Vice-Chancellor, he initiated a revitalisation process (turnaround strategy) which was ultimately finalised by his successor, Prof Frederick Fourie.

Among others, he established a Broad Transformation Forum (BTF) and transformation office to draft a new political framework for the UFS. He strived to manage the university as a business enterprise and was focused on developing the academy in an entrepreneurial manner. His legacy includes the establishment of the BTF, the revitalisation process (turnaround strategy), academic revitalisation, growing student numbers, and increased research outputs. He stepped down as Rector at the end of 2002.

“The turnaround strategy initiated by Prof Coetzee during his term as Rector and Vice-Chancellor is still evident today in the management approach of the UFS. On behalf of the executive management and the university community, I wish his family, relatives, and former colleagues all the best during this difficult and sad time. I hope that they will find comfort in his significant contribution to various sectors in the country – especially at the UFS,” said Prof Francis Petersen, Rector and Vice-Chancellor of the UFS.

Prof Stef Coetzee obtained his MA degree in Economics at Stellenbosch University in 1973, and a DPhil in Development Economics at the University of the Free State (UFS) in 1980. He is a former Executive Officer of the Afrikaanse Handelsinstituut and was also associated with Unisa and the North-West University. 


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Lacea Loader (Director: Communication and Marketing)
Telephone: +27 51 401 2584 | +27 83 645 2454
Email: news@ufs.ac.za | loaderl@ufs.ac.za
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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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