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26 June 2020 | Story Nitha Ramanth | Photo Valentino Ndaba
Takudzwa Nyamunda.
Takudzwa Nyamunda is the proud new representative of the University of the Free State (UFS) for the 2020 Commonwealth Future Student Leadership programme. Nominated at a recent workshop themed ‘Reimagining Peace’, organised by the Association of Commonwealth Universities in collaboration with the British Council and the Durban University of Technology, Takudzwa demonstrated exceptional leadership, coupled with his experience of issues related to the UFS student committee, which provided the perfect foundation for his selection. 

“From a personal point of view, this was one of the most enriching experiences I have ever had, both in terms of the relationships established and the world knowledge gained. I am personally grateful for the opportunity to attend and would support any further initiative of this nature. I think the essence of this workshop was to encourage the young leaders present – all of whom were active citizens in their communities in one way or another – to continue fighting the good fight. The core message from the panellists was that it is all worth it in the end, and that even in the face of adversity and discouragement, we should keep fighting for the work we believe in,” says Takudzwa. 

Participants from 13 nations, including activists and thought leaders on non-violence affiliated with the International Centre of Nonviolence, the Gandhi Development Trust, and the Commonwealth Countering Violent Extremism Unit, contributed to the workshop. Over the course of three days, participants were divided into five groups and worked together on projects linked to three main themes – gender-based violence, global warming, and inequality.

The selection committee was convened by the Vice-Rector: Research and Internationalisation, Prof Corli Witthuhn, and facilitated by the Office for International Affairs. Currently in the final year of his Master of Industrial Psychology degree, Takudzwa’s wealth or experience includes being the founder and first president of the International Students Association (2016), and holder of the International Student portfolio as Student Representative Council (SRC) member (2017), coupled with being co-founder and first vice-chairperson of the South African Board for People Practices (SABPP): UFS Chapter and Vice-president of the SABPP National Youth Council (2019).

“I will continue to do what I have been doing for the past five years at the UFS, which is to make a difference in my sphere of influence”, says Takudzwa. 

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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