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20 March 2018 Photo Pexels
Water footprint important but misunderstood indicator
Water footprinting is the future of water conservation

The Water Footprint (WF) of a product, process or person provides an indication of how much fresh water is used, both direct and indirect, to produce a product, drive the process or lead a lifestyle. Although it is a very important indicator it is often misunderstood. Popular media contribute to this misunderstanding as they often use the WF to illustrate the large quantities of water used to produce a product without explaining what the footprint actually means.  

An example is a single kilogram of beef that has an average global WF 15 415 litres. This indeed sounds scary, but when one places it in context, the total WF includes 14 414 litres green water, 550 litres blue water and 451 litres grey water. Green water is the evapotranspiration of precipitation (rain), blue water is the fresh water from dams, rivers and underground sources, while grey water is the amount of fresh water required to dilute polluted water to acceptable levels.

According to Frikkie Maré, a lecturer at the Department of Agricultural Economics at the University of the Free State (UFS), the WF concept provides a new look at water conservation and sustainability. “Although the WF is not an indicator of sustainable water use, it is a useful tool to calculate total water demand and is used in the estimation of sustainability. Traditionally, water conservation was focused on the direct water use of individuals (time taken to shower, leaking taps etc.), but the WF now provides a tool to focus attention on total water demand.”

The Water Footprint Network assists individuals with this new trajectory on the water conservation front with the personal water footprint calculator that allows individuals globally to determine their personal water demand through their direct and indirect water usage. Maré believes this can cause the necessary paradigm shift in the aqua status quo by creating awareness among consumers on their total water demand.

With Water Week underway from 17-23 March 2018, UFS students and staff members are urged to make use of the personal water footprint calculator in order to become aware of the real importance of fresh water in our everyday lives.

News Archive

UFS team helps a pupil to hear again
2014-01-24

 

“I was scared at first. I could not remember the sound of my own voice. Being Deaf -it was like living on another planet.”

These are the words of the 18-year-old Andile (Godfrey) Jantjies after he heard sounds and words for the first time in almost 12 months.

Andile, a former pupil at the Albert Moroka School in Thaba Nchu, was the recipient of a cochlear implantation under the Bloemfontein Cochlear Implant Programme (BCIP) run by the Department of Otorhinolaryngology at the University of the Free State.

Andile lost his hearing after contracting bacterial meningitis in June 2013. This resulted in bilateral profound deafness and despite his good academic record, his school refused to have him enrolled for 2014.

The cochlear implant was inserted in October 2013 and was switched on for the first time on Thursday 23 January 2014.

“I want to go back immediately,” Andile said excitedly after gradually becoming comfortable with hearing his own and other voices.

Dr Iain Butler from the Department of Otorhinolaryngology says cases like Andile’s are a medical emergencies due to the fact that meningitis causes the inner ear to become replaced by bone.

“This can occur after as little as four months after the infection and means that the insertion of a cochlear implant becomes impossible.

A cochlear implant system costs approximately R220 000.

It converts sounds/speech into electrical signals that directly stimulate the auditory nerve, bypassing the damaged inner ear. It is indicated for babies with congenital hearing loss, as well as acquired hearing loss in children or adults. It requires intensive rehabilitation in order to learn to hear again, and most recipients develop very good hearing. Andile now has the opportunity to hear again, continue his schooling and become an economically independent member of society, rather than being dependent on others.

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