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26 August 2022 | Story Anthony Mthembu | Photo Supplied
Katleho Nkosi
Katleho Nkosi’s design, which won him second place in the national design competition during the Student Entrepreneurship Week 2022.

Katleho Nkosi, a fourth-year Education student at the University of the Free State (UFS), obtained second place in a national design competition hosted virtually by Entrepreneurship Development in Higher Education (EDHE). 

The national design competition formed part of the launch of the Student Entrepreneurship Week 2022, which took place at the University of Venda on 18 August 2022. As such, students from many of the universities in the country, including Nkosi, took part in designing a poster that would be used to advertise the event. 

Nkosi is delighted and excited about this accomplishment. “This win was really surprising and unbelievable for me, because obtaining the second-place position means that my work is good,” said Nkosi.

The participants were allowed to conceptualise and submit their final product between 28 June and 15 July 2022. “I had no experience in this space, I only designed content for fun, and I participated in this competition because I was motivated by a friend,” Nkosi highlighted. 

Click to view document  Click here to view poster in full size.


The motivation behind the design

Since the Student Entrepreneurship Week was held at the University of Venda, Nkosi used the vibrancy and colourfulness of Venda as inspiration for his design. “When I was designing the poster, the only thing on my mind was making sure that I put something together that was related to Venda,” he explained. In addition, the theme for the Entrepreneurship Week was ‘Move to Market’, and Nkosi asserts that he tried to integrate the theme with Venda, and this is how the design came about.

The outcome of the competition and future plans

Although Nkosi did not win the competition, he did receive a cash prize for being among the top three. Furthermore, given his accomplishment, Nkosi would like to take part in many more design competitions moving forward. “Now that I have realised that I have the potential to win, I think I can take this as a career path in the future,” he said. Nkosi is also looking at merging his love of teaching with his newfound love for design. “I’m going to try and find the connection between design and education, because I really love to teach, so I could perhaps become a design teacher,” Nkosi expressed

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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