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09 May 2018 Photo Varsity Sports
Maryke Coetzee is the new captain of the Crinums netball team
Maryke Coetzee is the new captain of the Crinums netball team.

Despite being a very young team the Free State Crinums are packed with Kovsie players, who will start the Brutal Fruit Netball Premier League as one of the strongest contenders and will hopefully be crowned the country’s best netball province.

The five-week long competition starts on Friday (11 May) in Johannesburg. The Crinums is a de facto Kovsie team with all 15 squad members currently doing a course at the university. Eleven of them were in action for the Kovsies in the Varsity Netball competition in 2017. They have only lost four players from last year which, along with the defending champs, the Jaguars, is the fewest by any team. They also boast experience in every position. The four newcomers in the squad are Sikholiwe Mdletshe, Jana Scholtz, Rykie Venter and Marétha van Heerden. Mdletshe and Venter have played for the Kovsies before. 

After winning the trophy for three years in a row, the Crinums were unable to defend it in 2017 when they finished fifth. It was, however, with a team that was officially the youngest, with an average age of 21 years and five months. This year it has increased to 21 years and six months. 

The team is coached by Kovsie netball coach, Burta de Kock, and skippered by goalkeeper Maryke Coetzee. She and Tanya Mostert (goal defender) will participate in their fifth Premier league.

The Crinums start with two matches against teams they haven’t lost to before. On Friday night they tackle the Sunbirds from Mpumalanga and a day later the Baobabs from Limpopo.

The Crinums squad: Alicia Puren, Ané Retief, Gertriana Retief, Jana Scholtz, Khanyisa Chawane, Khomotso Mamburu, Lefébre Rademan, Luscha Pienaar, Marétha van Heerden, Marna Claassens, Maryke Coetzee, Meagan Roux, Rykie Venter, Sikholiwe Mdletshe, Tanya Mostert.

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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