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16 October 2019 | Story Valentino Ndaba | Photo Rulanzen Martin
Dr Thuli Mphambukeli and Victor Okorie
Water is a fundamental human right, says Dr Thulisile Mphambukeli, (left) Senior Lecturer at the Department of Urban and Regional Planning. On the right is Dr Victor Okorie.

Research shows that “access to water and food remains critical to the survival and stability of any nation”. This is according to a team of academics that has been hard at work exploring ways in which to secure water and food in Brazil, Russia, India, China and South Africa (BRICS nations).

These scholars from the University of the Free State (UFS) and North-West University recently published a paper titled: Exploring the Political Economy of Water and Food Security Nexus in BRICS. Dr Thulisile Mphambukeli, Dr Victor Okorie, and Prof Samuel Amusan are members of the Food Security Research Cluster of the South African BRICS Think Tank that has been fervently tackling the water and food in(security) challenge.

Water as a key to social justice 

The team argues that unequal access and distribution of water has in the past led to violent conflict. The paper cites Qwaqwa as one of the many areas affected by water-service protests in the recent past. “Water and food crises are worsening thanks to the intensification of climate change, rapid urbanisation, nutrition transition and population growth. Solutions to these crises partly lie in cooperation and collaboration among nation states, regional economic commissions, and global power brokers.”

What are some of the local solutions? According to the scholars: “For agronomic and husbandry practices, there is a pressing need for research activities on innovative ways of supplying water to crops and animals such that water loss through evaporation and run-off is significantly reduced. 

“Similarly, research activities on redesigning toilets, especially the urinary section – where more than nine litres of water are used to flush less than one cubic centimetre of urine – are timely in the context of managing the water and food security nexus crises.”

Improving livelihoods

In an effort to achieve food security, BRICS aims to stimulate domestic capacity for production. Food and nutrition security cannot be achieved without water security, and vice versa. 

It is evident that the water and food insecurity issues are complex. However, concerted efforts are being made by various sectors to solve these challenges and improve the livelihoods of urban and rural citizens within BRICS nations.

News Archive

UFS Physics Research Chair receives more funding
2017-11-20


 Description: Prof Hendrik Swart, Physics Research Chair receives more funding Tags: Prof Hendrik Swart, Physics Research Chair receives more funding

Prof Hendrik Swart, Senior Researcher Professor in the
Department of Physics at UFS.
Photo: Charl Devenish

A research project into low-energy lighting using phosphor materials for light emitting diodes (LEDs) at the Department of Physics at the University of the Free State (UFS) has received further recognition. 

The South African Research Chairs Initiative (SARChi) has awarded further funding for the Research Chair in Solid State Luminescent and Advanced Materials situated in the department. Prof Hendrik Swart, a Senior Research Professor in the Department of Physics, says this means that the Chair will carry on receiving funds from SARChi for another five years. The Initiative also awarded Prof Swart in 2012 for the research, which resulted in funding for equipment and among others, bursaries.    

Better light emission in LED’s
The research focuses on better light emission of phosphor powers in LEDs. It is also looking into improving LED displays in flat screens. The research into solar cells has shown that phosphors can also increase their efficiency by increasing the range of light frequencies, which convert into electricity. It also entails that glow-in-the-dark coatings absorb light during the day and emit it at night. 

Prof Swart says over the next five years the research will focus on developing and producing devices that emit better light using the substances already developed. “We need to make small devices to see if they are better than those we already have.” In practical terms, it means they want a farmer’s water pump that works with solar energy to work better with less energy input.” 

Device that simulates sunlight
Prof Swart says the renewal of the Chair’s funding means the department can now get equipment to enhance its research   such as a solar simulator. The solar simulator uses white LEDs whose intensity output and wavelengths can be tuned. The output is measured in number of suns. It enables researchers to work in a laboratory with a device that simulates sunlight.     

According to Prof Swart the long-term benefit of the research will result in more environmentally friendly devices which use less energy, are brighter and give a wider viewing field. 

About 10 postdoctoral researchers are working on the studies done by the Chair in collaboration with the Council for Scientific and Industrial Research. 

The Research Chair Initiative aims to improve the research capacity at public universities to produce high-quality postgraduate students, research and innovative outputs. The criterion for evaluating the department’s Chair includes aspects such as how much development has occurred over the past five years. The assessors look at features such as the number of students the research entity has trained and how many publications the research team has produced.

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