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04 August 2020 | Story Dr Nitha Ramnath
Apart from its devastating impact on people’s lives and livelihoods, the COVID-19 pandemic has also affected the nature and quality of our democracies – democracy read in its widest sense here as collective and individual self-determination. Formal, institutional democracy has beencurtailed through the imposition of states of emergency or disaster and the logistical difficulties associated with social distancing. Extra-institutional democratic work, such as protest and social-movement activity, has suffered from prohibitions imposed by law and through state suppression related to ‘lockdown’. The nature (and perhaps democratic quality) of public conversation has changed – for better or worse – from increasing reliance on ‘science’ and ‘scientists’ to justify public choices. The crisis has brought to the fore already existing characteristics of our democracies, such as the prevalence and power of special-interest bargaining, the extreme inequality of our societies, and chauvinist nationalisms that force us to ask whether we have ever had democracy at all. What will be the long-term effects of these impacts of the crisis on our democracies? What will democracy look like post-COVID? What does the crisis teach us about what our democracies have always been?

Join us for a discussion of these and other democracy-related issues in these troubled times by a panel of four hailing from Colombia, India, South Africa, and the USA.

Date: Thursday, 13 August
Time: 14:00-16:00 (South African Standard Time – GMT +2)

 

Please RSVP to Mamello Serasengwe at serasengwemsm@ufs.ac.za no later than 12 August 2020 upon which you will receive a Skype for Business meeting invite and link to access the webinar

Panel

Prof Natalia Angel Cabo (University of Los Andes, Bogota, Colombia)

Dr Quaraysha Ismail-Sooliman (University of Pretoria, Pretoria, South Africa)

Dr Usha Ramanathan  Independent Law Researcher  (Delhi, India)

Prof Katie Young (Boston College, Boston, USA) 

Moderator

Prof Danie Brand (Free State Centre for Human Rights, University of the Free State, Bloemfontein, South Africa)   




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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