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25 July 2022 | Story Lunga Luthuli

From an early age, many have been taught that strangers are not only a danger to the individual, but to the communities too.

A StrangerKind (ASK), an organisation hosting unconventional conversations in communities on topics and responding to questions that many may not have the opportunity to ask, has partnered with the University of the Free State to host the talks that aims to promote curiosity, diversity, and social cohesion.

As part of the ASKcampus – a first to be hosted at any university in the country – participants will have an opportunity to talk to a stranger in a safe setting and ask any question that comes to mind, without any judgement.

Michelle Nöthling, Assistant Researcher in Kovsie Support Services, said: “The ASK event is an opportunity for participants to pick a topic from a list that sparks curiosity and book an available 45-minute time slot. During your session, you sit down to a one-on-one conversation with a stranger who will briefly introduce themselves and their topic. They will then share their personal life experience on that topic with you.”

The event, which will be launched at the Thakaneng Bridge, Bloemfontein Campus, on 28 July 2022, is open to both UFS staff and students.

“During the individual sessions, participants may ask the strangers anything about the chosen topic. We even encourage you to ask those questions that you might otherwise have been too shy, or felt were too ignorant, to ask. What is more, is that the strangers you will meet will be fellow UFS staff and students. But you will not know who your stranger is until you sit down with them,” said Michelle.

Individuals who want to know more about becoming a UFS stranger are encouraged to visit the organisation’s YouTube channel or register to attend training and become a ‘stranger’.

Be curious. Be brave. Talk to strangers.

Launch details:
Date
: 28 July 2022
Time
: 10:00-14:00
Venue
: Thakaneng Bridge, Bloemfontein Campus

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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