Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
25 May 2018 Photo Rulanzen Martin
UFSAfricaWeek Make this Africa Day a day of reflection - Dr Stephanie Cawood
Dr Stephanie Cawood is the acting Director of the CGAS

On 25 May 2018, we celebrate the 55th Africa Day since the Organisation of African Unity (OAU) was formed on this day in 1963. The conception of Africa Day, however, goes back to 1958 to the First Conference of Independent African States held in Accra, Ghana, hosted by Kwame Nkrumah. It was at that conference where Africa Freedom Day was first proclaimed and celebrated on 15 April to commemorate the progress of the African liberation movement as more and more African states gained independence. When more than 30 heads of state of independent African countries met in Addis Ababa, Ethiopia, to form the OAU (now the African Union) on 25 May 1963, African Freedom Day was dubbed African Liberation Day and moved to May. Today, known as Africa Day, it is commemorated across the African continent and the diaspora. 

What is the significance of Africa Day more than 50 years after its inception? African countries may have been liberated, but freedom is often qualified and limited by poverty persistent conflict, poor governance, neopatrimonialism, intolerance and other social injustices? Seen through a gender lens, one may well ask whether we have anything to celebrate when African women and sexual minorities carry such a heavy burden in daily struggles for survival and bear the brunt of persistent conflict. 

On this Africa Day, let’s rejoice in all the progress made since that very first commemoration. Let’s revel in all the vibrant cultural diversity in Africa and its diaspora, but let’s make this Africa Day a day of remembrance and reflection. As a day of remembrance, Africa Day should remind us of the liberation struggles that came before and it should prompt us to reflect on the struggles that remain in areas like gender equality and LGBTQI rights, poverty and sustainable livelihoods, social and environmental injustice, economic dependency, and conflict and what we can do to help effect change for the better. To quote an African proverb, “Use your tongue to count your teeth” for it is only through deep reflection that one will realise what needs to be done and how one should do it.    


This article was written by Dr Stephanie Cawood from the Centre for Gender and Africa (CGAS) Studies at the University of the Free State

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.

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept