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28 February 2018 Photo Pixabay
Use less water and save more
Don't think twice about being water-wise

“Lift up the handle as soon as you flush. Don’t use the whole five litres at a go,” says Dr Cindé Greyling, who reckons we could save 25% of the water we flush down the toilet. Dr Greyling, who completed her PhD in Disaster Management at the University of the Free State (UFS), has spent years studying ways to shape the drought dialogue. Her voice is one that deserves our attention as citizens of this province.

Over the past five years the Free State has been experiencing heightened stress levels on reservoirs and dams due to the drought conditions induced by climate change. Since 2013 the issue has been worsening instead of improving.

Feasible water-conservation strategies
Students and staff members are advised to apply the same principle in the bathroom and kitchen alike by not letting the tap run while rinsing coffee cups. You could save a litre or two a day by (depending on how much coffee you drink and the number of cups rinsed) by quitting this bad habit. According to Dr Greyling, litter on campus is a secondary way of wasting water which many are unaware of. Litter blocks the drains and water which could have otherwise been recycled is lost in the process.

What do fellow Kovsies say?
Unamandla Mdlotshana, a third-year Actuarial Science student proposed eco-friendly adjustments that could potentially save litres of water on our campuses. He believes that using bottles to collect drinking water from taps, installing more water dispensers, and introducing hand sanitisers in bathrooms could drastically minimise water usage.

According to Dr Greyling, litter on campus is a
secondary way of wasting water which many
are unaware of. Litter blocks the drains and water,
which could have otherwise been recycled,
is lost in the process.


In Tebogo Chabangu’s view, taking shorter showers, turning off the tap while brushing your teeth, and making sure taps are properly closed are some of the ways we could be water-wise. For the Anthropology honours student being water conscious means changing habits on a daily basis.

Join us as we spread the message of reversing the effects of the drought by saving water prior to the Rector’s engagement with students at 11:30 on 08 March 2018 at the Albert Wessels Auditorium on the Bloemfontein campus.

Remember to tag us on your water-saving tips on Facebook, Twitter and Instagram.

 

News Archive

Heart-valve studies receive international recognition
2017-07-11

 Description: Heart-valve studies  Tags: Heart-valve studies  

Prof Francis Smit, Head of the Department of
Cardiothoracic Surgery at the UFS, and Manager of the
Robert WM Frater Cardiovascular Research Centre, with
Kyle Davis, Mechanical Engineer at the centre.

Photo: Rulanzen Martin

Three heart-valve studies which have been developed at the Robert WM Frater Cardiovascular Research Centre at the School of Medicine at the University of the Free State (UFS) were recently presented in Monte Carlo at the conference of the prestigious global Heart Valve Society (HVS).

These studies are all headed by Prof Francis Smit, Head of the Department of Cardiothoracic Surgery at the UFS, and Manager of the Robert WM Frater Cardiovascular Research Centre.
Prof Smit says the HVS is a combination of the former heart-valve societies of Europe and the US. “Studies on heart-valve disease, heart-valve-related products and operations, as well as the design and development of new valves were presented. There are both clinical and development divisions.

He says the study in which the hemodynamics of their redesigned mechanical poppet valve was compared to a commercial bi-leaflet mechanical heart valve, was named as the best poster presentation in the experimental valve development and numerical flow dynamics division. The study, which was presented by Kyle Davis, mechanical engineer at the centre, competed against some of the best heart-valve research units in the world.

The redesigned valve, based on the 1960s Cape Town poppet valve, has the potential to provide a low-cost solution for mechanical heart-valve replacement. It is possible to produce the titanium ring with 3-D printers and is, together with the silicon poppet valve, extremely inexpensive compared to current mechanical valve-manufacturing processes.
The advantages of this valve over current mechanical valves is that, due to the effective and laminar flow characteristics, as well as the simple locking mechanisms, there is a reduced chance of valve thrombosis, and the need for anti-clotting drugs is therefore limited.

It was also confirmed that the new valve more than meets the published FDA (Federal Drug Agency) requirements, which determine the minimum standards of valves for human use in the US.

The redesigned valve also has a very low platelet activation impact, which is responsible for platelet thrombosis and leads to valve thrombosis or strokes. This valve is another heart-valve project by the centre, which is also in the process of evaluating a tri-leaflet polyurethane valve developed by them.


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