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17 December 2018 | Story Andre Grobler | Photo Supplied
Drought read more
Water-saving initiatives have been implemented throughout the university’s campuses to withstand the drought.

An attentive visitor to the University of the Free State (UFS) would have noticed that in the past year, certain parts of the Bloemfontein Campus’ gardens have undergone a change. This is part of the UFS’s water-wise and grey-water initiatives that are a response to the ongoing local drought conditions and water restrictions.

Waterless gardens

Senior Director: University Estates, Nico Janse van Rensburg, says the environmental conditions have had a severe impact on the appearance of the gardens. “The era where we had big lawns, has passed.”

Janse van Rensburg says the UFS decided to start the initiative at two highly visible areas, two traffic circles, one at the George du Toit Building and the other the Francois Retief Building.

More landscape changes can be seen in the gardens around the Biotechnology Building, Geography building and Muller Potgieter Building, as well as near the Institute for Groundwater Studies, Engineering Science and the Thakaneng Bridge.

Towards an energy-efficient environment

Paving in these areas is designed to allow for water to soak into the ground. Acting Grounds Services Manager, De Wet Dimo, says more than 100 indigenous trees, which are more adaptive to local environmental conditions, have also been planted. He says a new wood chipper which was recently purchased, will turn dead trees in gardens into wood chips to be used as mulch for new plants.

Dimo says the new look and feel of the gardens was created by using hard elements, paving and indigenous succulents.

New student residences, including those in Qwaqwa and South Campus will use a grey-water system using water which will be collected from showers and basins. The piping at two older residences on the Bloemfontein Campus has also been renovated to a two-way system.

“Rainwater harvesting systems have been fitted at all residences and academic buildings,” said Dimo. The 19 tanks that have been installed have a storage capacity of 265 kilolitres.  Janse van Rensburg says other water-wise initiatives that have been put into action include installing waterless urinals in administrative and academic buildings, water restrainers, pressure control systems (reducing the volume of water) and push-button systems instead of taps.

News Archive

Mineral named after UFS professor
2017-09-29

Description: Mineral tredoux Tags: International Mineralogical Association, tredouxite, Prof Marian Tredoux, Department of Geology, Barberton 

Tredouxite (white) intergrown with bottinoite (light grey),
a complex hydrous alteration product. The large host
minerals are nickel-rich silicate (grey), maybe willemseite,
and the spinel trevorite (dark grey).


More than five thousand minerals have been certified by the International Mineralogical Association (IMA). One of these minerals, tredouxite, was recently named after an academic at the University of the Free State (UFS). 

Tredouxite was named after Prof Marian Tredoux, an associate professor in the Department of Geology, to acknowledge her close to 30 years’ commitment to figuring out the geological history of the rock in which this mineral occurs. The name was chosen by the team which identified the new mineral, consisting of Dr Federica Zaccarini and Prof. Giorgio Garuti from the University of Leoben, Austria, Prof. Luca Bindi from the University of Florence, Italy, and Prof. Duncan Miller from the UFS. 

They found the mineral in the abovementioned rock from the Barberton region in Mpumalanga, in May 2017.

In the past, a mineral was also named after Marie Curie
With the exception of a few historical (pre-1800) names, a mineral is typically named either after the area where it was first found, or after its chemical composition or physical properties, or after a person. If named after a person, it has to be someone who had nothing to do with finding the mineral.

Prof Tredoux said: “As of 19 September 2017, 5292 minerals had been certified by IMA. Of these, 81 were named after women, either singly or with a near relation. Marie Curie is named twice: sklodowskite (herself) and curite (plus husband). Most of the named women are Russian geoscientists.”

Another way to assess the rarity of such a naming is to consider that fewer than 700 minerals have been named after people. Given that there are by now seven billion people on the planet, it means that a person who is granted a mineral name becomes one in 10 million of the people alive today to be honoured in such a way. To date, over a dozen minerals had been named after South Africans, three of them after women (including tredouxite).

It contains nickel, antimony and oxygen
The chemical composition of tredouxite is NiSb2O6 (nickel antimony oxide). This makes it the nickel equivalent of the magnesium mineral bystromite (MgSb2O6), described in the 1950s from the La Fortuna antimony mine in Mexico.  

“This announcement is of great academic importance: the discovery by the Italian team of a phase with that specific chemical composition will undoubtedly help me and my co-workers to better understand the origin of the rock itself,” she said. She also expressed the hope that it may raise interest in the Department of Geology and the UFS as a whole, by highlighting that world-class research is being done at the department. 

The announcement of this new mineral was published on the International Mineralogical Association Commission on New Minerals, Nomenclature and Classification website, the Mineralogical Magazine and the European Journal of Mineralogy.

 

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