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29 August 2024 | Story Anthony Mthembu | Photo Harmse Photography
Ross van Reenen
Ross van Reenen, CEO of the Toyota Free State Cheetahs.

The Business School at the University of the Free State (UFS) recently hosted the CEO of the Toyota Free State Cheetahs, Ross van Reenen, for a guest lecture. Van Reenen presented the guest lecture in the Business School Auditorium on the UFS Bloemfontein Campus on 21 August 2024.

Reflecting on Van Reenen’s address

In a lecture addressed to an auditorium filled with UFS staff and students, Van Reenen’s talk was divided into several sections. Firstly, he spoke about the concept of the ‘black swan’ in reference to the book written by Nassim Nicholas Taleb, titled The Black Swan: The Impact of the Highly Improbable. Referring to Taleb’s book, Van Reenen defined a ‘black swan’ as a rare event that has a severe impact, and the occurrence of which people try to explain. He used some examples to explore this concept as well as its implications, including COVID-19 and its impact on the world, and the tragic death of the people in the Titanic disaster. However, he delved deeper into 9/11 and the extent of its impact, saying that “9/11 was a major wake-up call in the world economy”. Van Reenen highlighted how some companies such as Barclays, for which he previously consulted, had to work to be up and running after the collapse of the Twin Towers in 9/11.

In addition, Van Reenen’s lecture also touched on the importance of the first ninety days of a job after an individual has been employed. “Those first ninety days are crucial, as you have to establish yourself in a company where you are paid less than you are worth,” Van Reenen said. As such, he gave the audience insight into what they could focus on in that time frame. This includes focusing on the small wins, as well as ensuring that you are working at keeping the team together, as the team is an integral part of an organisation. 

Van Reenen concluded his address by speaking about his time as the CEO of the Toyota Free State Cheetahs, including some of the decisions he took to ensure the success of the organisation.

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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