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16 March 2022 | Story Nonsindiso Qwabe | Photo IAN VAN STRAATEN
Prof Francis Petersen (UFS), Alex Hickman (AMRF), Dr Ralph Clark (UFS), and Prof Shen Xiaomeng (UN Europe)
Prof Francis Petersen (UFS), Alex Hickman (AMRF), Dr Ralph Clark (UFS), and Prof Shen Xiaomeng (UN Europe)

Mountains matter; 60-80% of the earth’s fresh water comes from mountains, and 50% of the world’s biodiversity hotspots are in mountains. In addition, 50% of land across the world relies on mountain ecosystem services.

This is according to Prof Shen Xiaomeng, United Nations Vice-Rector for Europe, on the first day of the first-ever Southern African Mountain Conference (SAMC2022). The conference, under the theme Southern African Mountains – their value and vulnerabilities, is taking place from 14 to 17 March 2022 in the majestic Maloti-Drakensberg Mountains in South Africa and Lesotho. 

“We need to go beyond national and regional boundaries to have the collaboration. We have the opportunity to create a world worth living in for ourselves and our children. We can create and co-create together by transcending boundaries,” said Prof Xiaomeng.

The conference – a collective voice for the sustainable management of Southern African mountains – brings together a network of more than 200 delegates from across the globe to discuss a wide array of interventions to ensure the preservation of the ecosystem under global change.

Dr Ralph Clark, chairperson of the SAMC2022 local organising committee and Director of the Afromontane Research Unit (ARU) on the Qwaqwa Campus, said the conference – a first for the southern region – presents an opportunity for new collaborations in transdisciplinary research.

Bringing together people from various disciplines in one space for networking and information sharing, the conference seeks to create a space for robust regional and international collaboration and comparative mountain studies with an increase in research activities, student capacity, researcher capacity, and academic outputs that feed into policy and action. 

The conference was officially opened by the Vice-Chancellor and Rector of the UFS, Prof Francis Petersen, as well as Prof Xiaomeng.

Prof Petersen said the UFS firmly believes in getting involved with its surrounding communities and applying skills and knowledge towards making a real, practical, and positive impact in their lives. “Higher education institutions cannot afford to conduct research simply for its own sake. Our research efforts must address the needs of our surrounding communities and the wider world. Which is why, together with Teaching and Learning, and Research, the UFS – like many other South African universities – has a third core function, namely Engaged Scholarship, where we use our academic expertise with an intentional public-benefit purpose,” he said.

The programme has six parallel tracks – one of which is dedicated to postgraduate students – with about 200 papers delivered. In addition, there is a special Mountain Research Institute (MRI) session on long-term monitoring activities and associated data availability for climate change-related applications across Africa’s mountains, as well as a special UNESCO session on regional collaboration.

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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