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Qwaqwa research conference highlights value of research that is centred on humanity

11 October 2022 | Story Nonsindiso Qwabe

From socio-political dynamics and creativity in the Basotho language, to the improvement of water conditions in the upper Tugela River and antifungal studies of Cydonia oblonga extracts (known as kwepere in Sesotho) – these are just some of the highlights of the research presented at the UFS Qwaqwa Campus research conference.

With a theme focused on research as a tool for the betterment of humanity, the two-day research conference provided a space for the campus to showcase its research for sustainable development in the Afromontane region and beyond, conducted by academics and postgraduate students alike. The two-day event comprised oral student and staff presentations and sessions, with shorter presentations on the second day.

As global trends continue to challenge society to solve big and immediate problems, there has been a natural turn towards research that can make a lasting impact on local and global platforms. Through student and academic presentations, the conference provided insights into how the UFS is playing an active role in responding to some of these challenges by being outwardly focused in their approaches to problem-solving.

Balancing the sciences, industry, and society

With an intentional focus on interdisciplinarity, the guest speakers – all in different science fields – offered solutions to conducting impactful research through the lens of their own work. Prof Percy Hlangothi is currently an Associate Professor of Physical and Polymer Chemistry at Nelson Mandela University (NMU) and inaugural Director of the Centre for Rubber Science and Technology, a research entity in the Faculty of Science at the same institution. By describing his work, particularly on the production of tyres, he focused on the importance of achieving rapport between the sciences, industry, and society.

The second keynote speaker was Lukhona Mnguni, a governance, politics and development specialist and PhD candidate in Political Science at the University of KwaZulu-Natal. He currently serves as the Head of Policy and Research at the Rivonia Circle. Mnguni focused his talk on the breakthroughs of research as stemming from people, and not academic disciplines themselves. Mnguni issued a hard call towards a reflection of what the intellectual and scholarly quest for knowledge is doing to society, emphasising the need for societal involvement in issues pertaining to crises in society.

Prof Dipane Hlalele, Professor of Education at UKZN and a C2 NRF-rated researcher (2022-2027), was the final speaker for the conference. He anchored his talk on the importance of having philosophical frames behind scholarship, and spoke against approaching rural areas as lacking knowledge, to a stance of mutual understanding of knowledge schemes and models of intervention.

Campus focused on making an impact outwardly

Marking the opening of the conference, Dr Martin Mandew, Qwaqwa Campus Principal, said the campus was trying to punch above its weight and evolve its research and knowledge outputs. “We cannot just be consumers of knowledge and finished products that come from abroad. We have to produce our own knowledge that speaks to our own unique circumstances and makes complete sense of our capacities,” he said.

The conference also served as the launch platform for the campus research strategy. During the launch, Prof Pearl Sithole, Campus Vice-Principal: Academic and Research, said the strategy was centred on five frontiers. “We are trying to align what we do outwardly in terms of impact and are working on ourselves as per the commitments of the strategy. We do this excellently, because we want to advance knowledge – there is no question about that – and we put pressure on each other to do that. It does not mean that it will be easy, but we are going to engineer it such that originality and the advancement of knowledge is happening.”

The conference concluded with a prize-giving session for the best oral student presentations.

News Archive

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

2016-05-09

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.

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.

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