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19 September 2023 | Story University of the Free State | Photo Supplied
Staff from UFS University Estates: Engineering Services; Obakeng Mocwana, Ben Mhlomi, Sibusiso Lediga, Waylon Kruger, Alain Isaacs, and Nicolaas Esterhuysen.

Last year, the University of the Free State (UFS) launched a progressive institutional strategy, which contains bold but achievable goals to maximise its impact on society. Vision 130 expresses the institution’s intent and commitment to be acknowledged by peers and society as a top-tier university in South Africa, ranked among the best in the world. It highlights key focus areas for the period leading up to 2034 when the university celebrates 130 years of existence. A set of key values have been identified to guide UFS strategies and operations – with sustainability occupying a central space.

As an institution of teaching and learning, research, and engagement, the UFS wants to use its strategic position to drive sustainability issues by establishing green campuses and adopting sustainable built environment practices.

It aims to renew, rejuvenate, regenerate, and revisit facilities and infrastructure. This includes a commitment to implementing energy-saving and effective water management initiatives for greater sustainability.

Solar energy

A flagship renewable energy project is the installation of solar plants across the three UFS campuses in response to the call for urgent solutions to load-shedding problems, and promoting sustainable, clean energy solutions.

The microgrid installation on the Qwaqwa Campus in the Eastern Free State is one of the biggest solar-diesel hybrid systems in South Africa, enabling this campus to keep running despite excessive power interruptions in the region.

The installed grid-tied solar plants operate without batteries on all three campuses, giving the university an optimal configuration between capital cost and payback period.
The UFS has saved up to R32,5 million since the first solar plant was commissioned in 2017. This will soon increase substantially with the commissioning of two large new ground-mounted solar plants on the Bloemfontein Campus.

Waterwise landscaping

Changing environmental conditions are putting precious water resources under strain across the world – especially in drought-prone sub-Saharan Africa.  

The UFS has been implementing innovative waterwise and greywater initiatives over the past couple of years in response to continuous local drought conditions and sporadic water restrictions, replacing large expanses of lawn with hard elements and paving, as well as waterwise indigenous plants, including a range of hardy succulents. 

Rainwater harvesting systems have been fitted at all residences and academic buildings. Other water-saving initiatives include greywater systems installed at residences, waterless urinals in administrative and academic buildings, water restrainers, pressure control systems (reducing the volume of water) and push-button systems instead of taps.  

Encouraging energy-saving results

A clear indication that the energy-saving measures are yielding positive results is that energy consumption has decreased with 14,5% since 2017, even though the gross surface area of the university has grown with 8,8%.

UFS carbon emissions have shown a significant reduction over the years – from 0.115 CO2/m2 in 2013 to 0.088 CO2/m2 in 2022 – making it a frontrunner in low carbon emissions among South African higher education institutions.  This is mainly due to the implementation of energy-efficient strategies and solar generation, effectively minimising energy consumption. 

The UFS not only prioritises sustainability as a fundamental institutional focus, but also actively engages in numerous projects that contribute to a more sustainable world, aligned with the United Nations Sustainable Development Goals. In this way, it lives up to its mission to be a research-led, student-centred, and regionally engaged institution that contributes to development and social justice through the production of globally competitive graduates and knowledge. 

Energy-efficient buildings

The UFS has thorough guidelines for pursuing sustainability in its built environment, with factors such as energy efficiency given meticulous consideration when new buildings and structures are planned. The university also measures and tracks energy consumption in all its existing buildings.

On the Bloemfontein Campus, the multi-functional Modular Lecture Building offers flexible teaching and learning spaces, where large numbers of students exchange knowledge and information in an environment enhanced and supported by electronic media. This facility is considered a hub for innovative learning, recently receiving a National Merit Award from the South African Institute of Architects (SAIA). Adjudicators noted that the building sets a benchmark for rational planning and technical efficiency and helps to complete the campus urban framework through its placing and material choices.

The building incorporated various energy-saving measures in its design, including building orientation to optimise exposure to sunlight in spaces where it matters, seasonal sun control, double glazing and louvres for energy conservation, rainwater harvesting and storage on the roof of the building, trees and waterwise landscaping.

This facility forms part of an endeavour to create a cohesive campus identity that improves the university’s core business, and exemplifies its emphasis on innovation and excellence.

The UFS has adopted technical guidelines for building design and development, following the rating systems and tools developed by the Green Building Council of South Africa (GBCSA), which are used for the certification of sustainability performance in the built environment. These guidelines, which apply to indoor environmental quality, energy, materials, land use ecology, emissions, innovation, and water, among others, form part of the measures used when new buildings are developed.
 
Research on water and water quality 

In line with the United Nations’ Sustainable Development Goal 6 (Clean Water and Sanitation), several UFS researchers are involved with important research efforts on water and water quality, including:

• Centre for Environmental Management: The use of freshwater algae to treat acid mine drainage or domestic wastewater.
This research, which has earned a coveted NSTF-South32 award, focuses on a more circular use of resources where waste is reduced and resources are recycled, which has driven a paradigm shift within the scientific community about wastewater solutions.

• Centre for Mineral Biogeochemistry: Developing sustainable water treatment options using biogeochemical processes in engineered technology.
The UFS has established a Mineral Biogeochemistry Research Infrastructure Platform as part of a national initiative to promote the science of biogeochemistry as a strategic objective in South Africa. It also focuses on agricultural bio-augmentation research with industry partners to help ensure long-term food security in Africa.

• Institute for Groundwater Studies (IGS): Research on fractured rock aquifers, industrial and mining contamination, groundwater governance and groundwater resource. 

The IGS water research laboratory has ISO 17025 accreditation from the South African National Accreditation System (SANAS) for all its methods, setting it apart in the field of contract research on water-related topics in the mining and industrial sectors.


 

 

WATCH: UFS' Sustainable Energy Initiatives



News Archive

Fight against Ebola virus requires more research
2014-10-22

 

Dr Abdon Atangana
Photo: Ifa Tshishonge
Dr Abdon Atangana, a postdoctoral researcher in the Institute for Groundwater Studies at the University of the Free State (UFS), wrote an article related to the Ebola virus: Modelling the Ebola haemorrhagic fever with the beta-derivative: Deathly infection disease in West African countries.

“The filoviruses belong to a virus family named filoviridae. This virus can cause unembellished haemorrhagic fever in humans and nonhuman monkeys. In literature, only two members of this virus family have been mentioned, namely the Marburg virus and the Ebola virus. However, so far only five species of the Ebola virus have been identified, including:  Ivory Coast, Sudan, Zaire, Reston and Bundibugyo.

“Among these families, the Ebola virus is the only member of the Zaire Ebola virus species and also the most dangerous, being responsible for the largest number of outbreaks.

“Ebola is an unusual, but fatal virus that causes bleeding inside and outside the body. As the virus spreads through the body, it damages the immune system and organs. Ultimately, it causes the blood-clotting levels in cells to drop. This leads to severe, uncontrollable bleeding.

Since all physical problems can be modelled via mathematical equation, Dr Atangana aimed in his research (the paper was published in BioMed Research International with impact factor 2.701) to analyse the spread of this deadly disease using mathematical equations. We shall propose a model underpinning the spread of this disease in a given Sub-Saharan African country,” he said.

The mathematical equations are used to predict the future behaviour of the disease, especially the spread of the disease among the targeted population. These mathematical equations are called differential equation and are only using the concept of rate of change over time.

However, there is several definitions for derivative, and the choice of the derivative used for such a model is very important, because the more accurate the model, the better results will be obtained.  The classical derivative describes the change of rate, but it is an approximation of the real velocity of the object under study. The beta derivative is the modification of the classical derivative that takes into account the time scale and also has a new parameter that can be considered as the fractional order.  

“I have used the beta derivative to model the spread of the fatal disease called Ebola, which has killed many people in the West African countries, including Nigeria, Sierra Leone, Guinea and Liberia, since December 2013,” he said.

The constructed mathematical equations were called Atangana’s Beta Ebola System of Equations (ABESE). “We did the investigation of the stable endemic points and presented the Eigen-Values using the Jacobian method. The homotopy decomposition method was used to solve the resulted system of equations. The convergence of the method was presented and some numerical simulations were done for different values of beta.

“The simulations showed that our model is more realistic for all betas less than 0.5.  The model revealed that, if there were no recovery precaution for a given population in a West African country, the entire population of that country would all die in a very short period of time, even if the total number of the infected population is very small.  In simple terms, the prediction revealed a fast spread of the virus among the targeted population. These results can be used to educate and inform people about the rapid spread of the deadly disease,” he said.

The spread of Ebola among people only occurs through direct contact with the blood or body fluids of a person after symptoms have developed. Body fluid that may contain the Ebola virus includes saliva, mucus, vomit, faeces, sweat, tears, breast milk, urine and semen. Entry points include the nose, mouth, eyes, open wounds, cuts and abrasions. Note should be taken that contact with objects contaminated by the virus, particularly needles and syringes, may also transmit the infection.

“Based on the predictions in this paper, we are calling on more research regarding this disease; in particular, we are calling on researchers to pay attention to finding an efficient cure or more effective prevention, to reduce the risk of contamination,” Dr Atangana said.


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