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01 October 2019 | Story Ngang Carol | Photo Stephen Collett
International conference delegates
International delegates attending the International Conference on the Right to Development hosted on the Bloemfontein Campus.

The International Conference on the Right to Development was held in Bloemfontein for the first time from 25 to 27 September 2019, hosted by the Free State Centre for Human Rights at the University of the Free State. This is the third in the international conference series launched in 2017 with the aim of advancing the right to development both in Africa and internationally. This year’s conference follows the previous two that were held at the Centre for Human Rights, University of Pretoria, in September 2017 and August 2018.  

Based on the theme, ‘The right to development and natural resource ownership’, the 3rd International Conference on the Right to Development offered the forum and opportunity to participants from a diversity of backgrounds and disciplines to interact and share knowledge on their research outputs, which extensively explored questions on how natural resource ownership could contribute to the realisation of the right to development. The keynote address was delivered by Prof John C Mubangizi, Dean of the Faculty of Law at the University of the Free State. 

The three-day conference registered a total of 35 participants and 27 presentations out of the 33 that were scheduled. Participants came from different countries, including South Africa, Botswana, Zimbabwe, the Democratic Republic of the Congo, Cameroon, Nigeria, Ghana, Kenya, Uganda, Ethiopia, and the United Kingdom. Some of those who were unable to attend had the opportunity to present their papers through Skype. The presentations stimulated exciting and robust debates. 

The International Conference Series on the Right to Development is jointly organised and co-sponsored by the Centre for Human Rights, University of Pretoria; the Thabo Mbeki African Leadership Institute, University of South Africa; and the Free State Centre for Human Rights, University of the Free Sate. In its three years of existence, it has progressively established a steady track record of publications, including journal articles in special editions of selected journals and collections of chapters in edited volumes. 

The next (fourth) conference is intended to be much bigger and is scheduled to take place in Kigali, Rwanda, in 2021. 

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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