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29 March 2022 | Story Teli Mothabeng | Photo Supplied
Philmon Bitso, Student Recruitment Officer, with the top-10 cohort of the class of 2021 Free State Star of Stars.

The Department of Student Recruitment Services at the University of the Free State (UFS) hosted its annual Free State Star of Stars competition at the Amanzi Private Game Reserve during the first week of March.  The event saw some of the brightest young minds in the Free State inducted as UFS first-year students into this year’s top-10 cohort for the competition. This marks the first Star of Stars event since the beginning of the COVID-19 pandemic. 


This new cohort consists of a dynamic group of academically gifted students from Quintile 1-3 schools in the Free State who are currently enrolled for different UFS academic programmes, ranging from Medicine, Law, Education, and various Bachelor of Science courses. Many of these students had to overcome insurmountable challenges to perform as well as they did in their Grade 12 academic year and to become part of the top-10 cohort for the class of 2021. Due to the COVID-19 pandemic, the Department of Student Recruitment Services was forced to take a different approach to celebrate these deserving students; consequently, a weekend-long induction camp was the substitute for the annual gala dinner. 

Apply for the 2022 Free State Star of Stars competition

The UFS realised the need to establish a platform that recognises and celebrates the diverse and, in most instances, difficult circumstances that disadvantaged schools (Quintile 1-3) are facing. Consequently, the Star of Stars competition was developed and established in 2016. This competition provides disadvantaged Grade 12 learners from all districts in the Free State an opportunity to showcase their excellence, while motivating them to aspire to achieve more.

Star of Stars Flyer 2022  aplicayion for the 2022 Free State Star of Stars competition open on 1 April 2022.

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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