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21 February 2018 Photo pixabay
Water-wise expert says Is there a solution to pollution
Next time you want to throw something away, think twice. Look for ways to reuse, recycle, or repurpose.

Dr Cindé Greyling completed her PhD in Disaster Management with DiMTEC (Disaster Management Training and Education Centre for Africa) at the University of the Free State (UFS). Built on prior studies and years of communication experience, she opted to study ways in which to communicate drought mitigation information. Part of the mitigation process included saving water and reducing pollution.

A practical approach
“Look, we are all here now. And we need to eat, live, work, survive, and ultimately thrive using our planet’s resources,” she says. “But I think we’ve become so fixated on thriving, that we don’t consider survival anymore. Of course, some people do! There are wonderful projects around the world aiming at more responsible consuming, ranging from pre-loved baby clothes, to water harvesting for individual dwellings and larger compounds.” However, she understands that people may get so overwhelmed by the vast pollution problem that they consider any of their own efforts as insignificant. “That is not true. Every single bit of plastic (or cloth, glass, iron, etc.) that is recycled or repurposed, and does not end up in a landfill, makes a difference.” And here is why…

The tip of the iceberg
“Whatever you are holding in your hand and aiming for the bin is much larger than what you see. Take a piece of paper, for example. A tree was planted – the process involved fossil fuels, water, fertiliser, time, wages, administration, etc. And many years of that! Once it was felled, the resource usages continued, and expanded to processing plants, wholesalers, retailers, and then you – who also used resources to acquire that piece of paper. Do you see how large the wastage is? The same is true for food waste … that rotten tomato you forgot in the fridge is a grave loss.”

“Whatever you are holding in your hand,
aiming for the bin, is much larger what
you see.”


Little by little  
Fortunately, all is not lost. “Respect stuff,” Dr Greyling says, “it is as simple as that. To survive, we must take from the resources that the Earth provides. Because we became clever, we were able to alter these elements to make, from high-rise buildings to tiny technology. But we simply cannot keep on taking and taking without giving back Start with giving respect. Next time you want to throw something away, think twice. Look for ways to reuse, recycle, or repurpose. Consider that the denim you are wearing possibly used up to 10 000 litres of water to produce.”  

LISTEN: Dr Greyling elaborates on solutions for pollution

 

News Archive

UFS student makes breakthrough in the application of nanorobots
2005-04-21

A student from the University of the Free State (UFS) has made a ground-breaking discovery in the field of microbiology by uncovering a series of new compounds that may in future be used to lubricate man-made nanorobots.

Mr Olihile Sebolai, a full-time student at the UFS’s Department of Microbial- Biochemical and Food Biotechnology, made this discovery while working on his M Sc-study on yeast.

With this discovery Mr Sebolai will also be awarded six prestigious prizes during this week’s autumn graduation ceremony at the UFS.  This university has recognised this exceptional achievement as a build-up to the celebration of national Science and Technology week next month.     

Mr Sebolai’s dissertation on the yeast genus Saccharomycopsis Schionning has been published in an accredited international journal of repute. 

“Words cannot describe how excited I am. I never expected to receive such recognition for my studies.  I am humbled by all of this,” said Mr Sebolai.

The Lipid Biotechnology Group at the UFS recently discovered that some yeasts produce their own water-propelled capsules in which they are transported.  These capsules have different shapes and resemble among others miniature flying saucers, hats with razor sharp brims etc.  “In order to function properly, parts of the capsules are oiled with prehistoric lubricants – lubricants that are produced by yeasts and that probably existed for many millions of years as yeasts developed,” said Mr Sebolai.  

According to Mr Sebolai these capsules are so small that approximately 300 can be fitted into the full-stop at the end of a sentence and are therefore invisible to the naked eye.

“With my studies I discovered many new compounds that resemble these prehistoric lubricants.  These lubricants may in future be used to lubricate man-made nanorobots and are similar in size compared to yeast capsules,” said Mr Sebolai.  The nanorobots are used to perform tasks in places that are invisible to the naked eye and could one day be used, among others, to clean up human arteries.

Mr Sebolai has been interested in the subject of Micro technology since he was at RT Mokgopa High School in Thaba ‘Nchu.  “I was specifically interested in the many possible applications the subject has – in the industry, as well as in medicine,” said Mr Sebolai. 

His next goal is to successfully complete his Ph D-degree.

The prizes that will be awarded to Mr Sebolai this week include:

Best Magister student at the UFS (Senate medal and prize);

Best Magister student in the Faculty of Natural and Agricultural Science and Dean’s medal at the same faculty;

The Andries Brink – Sasol-prize for the best M Sc dissertation in Microbiology;

The JP van der Walt prize for best M Sc dissertation in yeast science;

The Chris Small prize for an outstanding Master’s dissertation; and

Honorary colours awarded by the UFS Student Representative Council

Media release

Issued by:                     Lacea Loader

                                    Media Representative

                                    Tel:  (051) 401-2584

                                    Cell:  083 645 2454

                                    E-mail:  loaderl.stg@mail.uovs.ac.za

20 April 2005

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