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30 July 2020 | Story Igno van Niekerk | Photo Igno van Niekerk
Keabetswe Malebo was recipient to the scholarship by Abbe Levin.

Great stories are often the result of unexpected connections made across time and space. Upon looking back and connecting dots, one is often surprised at how seemingly random events lead to happy endings, which in themselves become beginnings for new stories.

Leaving a legacy

When Ida Manana Siyila left South Africa in the first half of the twentieth century, no one would have known how her legacy would influence a young student at the UFS many years later. While working for the same American family for more than 30 years, she never stopped learning and working to improve herself. Ida, proud of her dual citizenship, never lost contact with her friends and family in Bloemfontein, wishing to return to Bloemfontein in her old age. Her American family made sure that this wish was fulfilled.

For Keabetswe Malebo, the first six months as a student were tough. An energetic young lady with joy in her voice and a passion for learning and making a difference in her community, Keabetswe had been squatting with a friend while studying at the UFS. The friend was running out of money; there was no way Keabetswe could pay her debt, and her friend could not afford the rent. No rent, no accommodation. No accommodation, no further studies.

Changing a life

Abbe Levin was sincerely grateful for what Ida Siyila had done for her family. In 2017, Abbe made a donation to the UFS requesting that it be used as a scholarship for a disadvantaged student in Ida’s name.

When Keabetswe read about the scholarship, she applied. “I felt it was for me, I was so excited and afraid.” Keabetswe’ s belief, commitment, and hard work were rewarded when she was granted the scholarship. “I got the money just in time to buy a laptop, a printer, and a microwave … and of course to pay the rent I owed my friend.”

Since then, Keabetswe has met Abbe Levin online, and they have become friends, communicating, sharing family pictures and stories, ever grateful for the never-ending story of Ida Manana Siyila.

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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