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27 November 2018 | Story Lacea Loader | Photo Sonia Small
Prof Francis Petersen
Prof Francis Petersen, Rector and Vice-Chancellor of the UFS.
On 24 October 2018, the Board of Universities South Africa (USAf) elected Prof Francis Petersen, Rector and Vice-Chancellor of the University of the Free State (UFS), as Chairperson of its Finance and Investment Committee. As Chairperson of this committee, Prof Petersen will also serve as member of USAf’s Executive Committee and as ordinary member on the Audit and Risk Committee.

“On behalf of the UFS Council, I wish to congratulate Prof Petersen on his election as Chairperson. USAf plays an important role in higher education and I am confident that Prof Petersen’s contribution as Chairperson of the Finance and Investment Committee will be of great value to not only USAf, but to the sector in general,” said Mr Willem Louw, Chairperson of the UFS Council.

According to Prof Petersen, his election as Chairperson and his membership of the Executive Committee and the Audit and Risk Committee will enable him to gain further insight into matters of national interest relating to finance and investment and it will give him the opportunity to represent USAf in its deliberations with government on the broader issue of fees and other related matters. “I am honoured by the election and look forward to support USAf’s initiatives relating to the portfolio,” he said.

Prof Petersen’s appointment as Chairperson of the Finance and Investment Committee is for a three-year term of office.

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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