Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
03 July 2023 | Story Leonie Bolleurs | Photo Stephen Collett
Prof Oliver Mutanga and Prof Melanie Walker
Prof Oliver Mutanga, one of the first PhD gradautes under the SARChI Chair in Higher Education and Human Development, pictured with his former supervisor, Prof Melanie Walker, during his first visit to the university after ten years.

Prof Oliver Mutanga, a University of the Free State (UFS) alumnus with a PhD in Development Studies and an experienced researcher focused on matters pertaining to disability, education, equality, and health issues, recently took up the position of Assistant Professor in the Graduate School of Education at the Nazarbayev University in Astana, Kazakhstan.

Prof Melanie Walker, Director of the SARChI Chair in Higher Education and HumanDevelopment (HEHD) at the UFS, invited Prof Mutanga to discuss his own research via an open webinar and to engage with members of her research group.

Prof Walker explained that she was delighted to host Dr Mutanga at the university, given his profile as an outstanding and internationally mobile early career researcher, from whom others in her group could learn. “Further, I very much wanted Dr Mutanga to speak about his own research, given its overall academic excellence, quality, and impact. Going forward, I am looking forward to developing this link with Dr Mutanga and his colleagues abroad around critical diversity studies,” she states.

Profs Walker and Mutanga have collaborated in the past to write articles for academic journals arising from his doctoral research. Examples include, ‘Towards a disability-inclusive higher education policy through the capabilities approach’ (published in the Journal of Human Development and Capabilities) as well as ‘Exploration of the academic lives of students with disabilities at South African universities: Lecturers’ perspectives’ (published in the African Journal of Disability).

Prior to joining Nazarbayev University, Prof Mutanga gained valuable research and development experience in various countries, including Zimbabwe, Botswana, South Africa, Norway, and the United Kingdom.

He has also received several accolades for his work, including the prestigious Marie Sklodowska Curie Postdoctoral Fellowship at the University of Oslo, Norway, and the Global Challenges Research Fellowship at University College London's Institute of Education.

A unique outlook on disability

In 2013, Prof Mutanga was part of the first cohort of PhD students under the SARChI Chair in Higher Education and Human Development. Recently, during his three-day visit to the UFS, he addressed the HEHD research group and an international academic audience during a hybrid seminar on the perceptions and experiences of disability within the Tembo Mvura communities of Northern Zimbabwe.

In his research for this paper, Prof Mutanga uses storytelling and in-depth interviews to offer a distinctive, community-based, and Southern interpretation of disability. By applying the capabilities approach and the ubuntu philosophy, his study presents a contrast to Western perceptions of disability that often emphasise individual limitations and differences based on physical and mental characteristics, which have the potential to both result in isolation and to understanding people as autonomous but isolated beings.

Within the Tembo Mvura communities, he discovered that disability is viewed through a lens of interconnectedness between individuals, their environment, and the spiritual world: “They recognise the inherent worth and dignity of all individuals, irrespective of their impairments,” found Prof Mutanga. Indeed, impairment of full personhood is understood as lacking in any of the three dimensions outlined above.

Thus, Prof Mutanga explored the complex interaction of identity, access to land, laws, and language, as well as labelling, highlighting how these factors shape perceptions and experiences of disability within these communities.

He is of the view that these findings will have implications for North-dominated disability discourse and for policy, practice, and research within indigenous contexts, such as the Tembo Mvura, where disability is uniquely perceived and experienced.

In addition to the hybrid seminar, Prof Mutanga led valuable sessions with the HEHD Research Group, where the PhD and postdoctoral fellows had the opportunity to workshop and refine various aspects of their current research papers and to engage in discussions around building their academic careers.

News Archive

Researcher part of project aimed at producing third-generation biofuels from microalgae in Germany
2016-05-09

Description: Novagreen bioreactor  Tags: Novagreen bioreactor

Some of the researchers and technicians among the tubes of the Novagreen bioreactor (Prof Grobbelaar on left)

A researcher from the University of the Free State (UFS), Prof Johan Grobbelaar, was invited to join a group of scientists recently at the Institute for Bio- and Geo-Sciences of the Research Centre Jülich, in Germany, where microalgae are used for lipid (oil) production, and then converted to kerosene for the aviation industry.

The project is probably the first of its kind to address bio-fuel production from microalgae on such a large scale.  

“The potential of algae as a fuel source is undisputed, because it was these photoautotrophic micro-organisms that were fixing sunlight energy into lipids for millions of years, generating the petroleum reserves that modern human civilisation uses today.  However, these reserves are finite, so the challenge is marrying biology with technology to produce economically-competitive fuels without harming the environment and compromising our food security.  The fundamental ability that microalgae have to produce energy-rich biomass from CO2, nutrients, and sunlight through photosynthesis for biofuels, is commonly referred to as the Third-Generation Biofuels (3G),” said Prof Grobbelaar.

The key compounds used for bio-diesel and kerosene production are the lipids and, more particularly, the triacylglyserols commonly referred to as TAGs.  These lipids, once extracted, need to be trans-esterified for biodiesel, while a further “cracking” step is required to produce kerosene.  Microalgae can store energy as lipids and/or carbohydrates. However, for biofuels, microalgae with high TAG contents are required.  A number of such algae have been isolated, and lipid contents of up to 60% have been achieved.

According to Prof Grobbelaar, the challenge is large-scale, high-volume production, since it is easy to manipulate growth conditions in the laboratory for experimental purposes.  

The AUFWIND project (AUFWIND, a German term for up-current, or new impetus) in Germany consists of three different commercially-available photobioreactor types, which are being compared for lipid production.

Description: Lipid rich chlorella Tags: Lipid rich chlorella

Manipulated Chlorella with high lipid contents (yellow) in the Novagreen bioreactor

The photobioreactors each occupies 500 m2 of land surface area, are situated next to one another, and can be monitored continuously.  The three systems are from Novagreen, IGV, and Phytolutions.  The Novagreen photobioreactor is housed in a glass house, and consist of interconnected vertical plastic tubes roughly 150 mm in diameter. The Phytolutions system is outdoors, and consists of curtains of vertical plastic tubes with a diameter of about 90 mm.  The most ambitious photobioreactor is from IGV, and consists of horizontally-layered nets housed in a plastic growth hall, where the algae are sprayed over the nets, and allowed to grow while dripping from one net to the next.

Prof Grobbelaar’s main task was to manipulate growth conditions in such a way that the microalgae converted their stored energy into lipids, and to establish protocols to run the various photobioreactors. This was accomplished in just over two months of intensive experimentation, and included modifications to the designs of the photobioreactors, the microalgal strain selection, and the replacement of the nutrient broth with a so-called balanced one.

Prof Grobbelaar has no illusions regarding the economic feasibility of the project.  However, with continued research, optimisation, and utilisation of waste resources, it is highly likely that the first long-haul flights using microalgal-derived kerosene will be possible in the not-too-distant future.

Prof Grobbelaar from the Department of Plant Sciences, although partly retired, still serves on the editorial boards of several journals. He is also involved with the examining of PhDs, many of them from abroad.  In addition, he assisted the Technology Innovation Agency of South Africa in the formulation of an algae-biotechnology and training centre.  “The chances are good that such a centre will be established in Upington, in the Northern Cape,” Prof Grobbelaar said.

 

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept