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10 May 2024 | Story Leonie Bolleurs | Photo supplied
Maureen Maisiri - Keynote Speaker PhD Candidate UFS
Delivering the keynote address at the first PhD Colloquium in Disaster Risk Management and Climate Change Adaption, Maureen Maisiri said that it is important to stop taking approaches that do not include people affected by disasters and climate change.

In the midst of South Africa's complex socioeconomic challenges, including poverty, food insecurity, and environmental degradation, a study tiled: Nature-based solutions practices: implications on farm performance, sustainable environment, poverty reduction and food security among South African households? explores the potential of nature-based solutions (NBS) to address these pressing issues. Focused on disaster risk management and climate change adaptation, this study examines the adoption of NBS and its impact on environmental sustainability, agricultural productivity, and community resilience. Collins Okolie aims to offer valuable insights for policy makers, farmers, and communities by investigating the viability of NBS as a strategy for mitigating disaster risk and managing climate change. His work emphasises the importance of raising awareness about NBS and its transformative potential in enhancing farm performance, food security, and poverty reduction.

This study was one of a number of studies discussed during the first three-day PhD Colloquium in Disaster Risk Management and Climate Change Adaptation hosted by the Disaster Management Training and Education Centre for Africa (DiMTEC) at the University of the Free State (UFS).

Becoming a centre of excellence

According to Dr Olivia Kunguma, Lecturer in DiMTEC who acted as chair, the colloquium was inspired by DiMTEC’s vision to become a centre of excellence. It aimed to support PhD candidates and find solutions and recommendations for the increasing incidents and declared disasters in Africa. She added that the colloquium was also the centre’s way of contributing to the achievement of global targets, such as the Sendai Framework for Disaster Risk Reduction 2015-2030 priorities, the Paris Climate Change Agreement of 2015, and the Sustainable Development Goals.

Among the more than 80 delegates who attended the colloquium were key stakeholders in disaster management, including representatives from the National Disaster Management Centre and the Gauteng Provincial Disaster Management Centre, in addition to the PhD candidates. The event also received support from UFS research structures, including the Directorate Research Development represented by its Director, Dr Glen Taylor, and the Faculty of Natural and Agricultural Sciences, represented by the Dean, Prof Paul Oberholster. External stakeholders in attendance included Counsellor Lulama Titi-Odili, the Deputy Mayor of the Mangaung Metropolitan Municipality, and Khotso Tsotsotso, the acting Head of the Old Mutual Foundation. The event was also sponsored by the Old Mutual Foundation, the Gauteng Provincial Disaster Management Centre, and the National Disaster Management Centre. “Having the Old Mutual Foundation as the primary sponsor is exciting for the disaster management fraternity, as it will see insurance companies take a growing interest in disaster risk management, resilience building, and climate change adaptation,” said Dr Kunguma.

Dr Kunguma pointed out the excitement and productive engagement between the audience and the PhD candidates as a particular highlight of the event. She emphasised the rigorous and scientific feedback received by the candidates, allowing them to reflect on their research motivation, perspectives, and future implications. The event provided an invaluable opportunity for PhD candidates to receive practical, social, and scientific feedback from both research experts and industry professionals. Dr Kunguma remarked, “The feedback and engagements have improved their work, and sharpened their presentation skills and confidence in their work and in themselves.”

Additionally, the initiative provoked praise from the Deputy Mayor, who underlined her role in advocating for increased funding for disaster management. Counsellor Titi-Odili stressed the importance of budgeting sufficiently for disasters. She acknowledged that disasters often originate at the local level and advocated for adjustments in the disaster declaration process. She also proposed the involvement of interns or graduates in government disaster management efforts.

Jurgens Dyssel from the National Disaster Management Centre also provided his input on the value of this initiative. He indicated that such a platform brings new knowledge that should be aligned with industry needs for translation into community impact. He suggested that the colloquium be aligned with the National Disaster Management Research Agenda, a repository for all research in disaster and climate studies.

Tshepo Motlhale, Chief Director of the Gauteng Provincial Disaster Management Centre, added that the colloquium is an innovative platform for diversifying all aspects of interventions and creating a space to enhance partnerships and collaborations to come up with solutions.

Blended systematic and sustainable solutions

Giving a voice to the PhD candidates was Maureen Maisiri, who was also appointed as the keynote speaker for this event. According to her, there is a need to create blended systematic and sustainable solutions and to stop taking approaches that do not include people affected by disasters and climate change. Maisiri encouraged fellow PhD candidates to work in teams, to appreciate diversity, and to be disciplined.

In the panel discussion on My PhD journey and contribution to Disaster Risk Management and Climate Change Adaptation, the work of Daizy Nalwamba and Zukiswa Poto investigated critical aspects of disaster risk management and climate change adaptation. Nalwamba's study in Zambia explored the effectiveness of environmental education in promoting sustainable practices, revealing gaps between knowledge and practical application. Meanwhile, Poto's research in South Africa highlighted the need to prioritise economic resilience in disaster management legislation, advocating for proactive measures to support business continuity and community resilience.

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.

 

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