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13 March 2024 Photo Sonia Small
Prof Sethulego Matebesi
Prof Sethulego Matebesi is an Associate Professor and Academic Head of Department of Sociology at the University of the Free State.

Opinion article by Prof Sethulego Matebesi, Associate Professor and Academic Head of Department of Sociology, University of the Free State.


There was a time when weekly news coverage of South Africa was dominated by various forms of racism, racial discrimination, xenophobia, and related intolerance incidents that painted a grim picture of respect for human rights

However, in the history of contemporary South Africa there has been plenty of optimism about the prospect of deepening the understanding of human rights in order to entrench a human rights culture among citizens. This optimism is underscored by a range of deliberate actions by the South African government to promote, protect, and monitor the development and observance of human rights through, for example, the South African Human Rights Commission and the Commission for Gender Equality.

Yet, while these institutions – and many other policy instruments to ensure compliance – are central to creating an environment conducive to advancing rights enshrined in the Bill of Rights, citizens also hold significant responsibility to prevent the escalation of discrimination and racial tension. But many of us face an uncomfortable truth we have become accustomed to avoiding: the ability to show unusual restraint in the face of injustice.

The challenge of combating practices that glorify intolerance

Beyond formal political rights, human rights also entail the progressive realisation of the right to the structural social determinants of well-being, such as access to clean water, food, and a healthy environment. However, while the process of social change in South Africa has many unique attributes, the response to the process reflects two extremes.

There are, on the one hand, those who cultivate an image as defenders of the rights of the ‘oppressed’ and are predominantly black activists, and on the other hand, anti-transformation forces who stall the move of the country towards a more inclusive and egalitarian future and are primarily white activists. These activists, whether advancing the reclamation of rights, perpetuate legacies of the past instead of asserting a positive commitment to eradicating socially constructed barriers to equality.

These activists are found everywhere. They are part of our education, religious, political, and social establishments. Reflecting on the painful past of the country, these activists do not help foster diversity as an ethos but advance the conscious and unconscious practices of structural racism. Aided by hyper-personalised social media feeds, these activists can stretch the boundaries of logic and destabilise fragile and established democratic and human rights.

The problem, they claim, is that those who embrace diversity and want to find amicable solutions to longstanding social injustices are either advocates of white supremacy or want to abrogate their right to freedom of expression. In such cases, when people in a hate frenzy find something to hate together, they become bonded. And anything contrary to their beliefs goes into an echo chamber of mockery. 

I do not want to establish a potentially trivialising affinity with branding activists who assert their rights as an attack on human rights. But attention is drawn to instances where noble objectives to confront the tentacles of human rights abuses have been weaponised against what is perceived as ‘the other.’

But how can we navigate this fundamental societal defect? Collective agency to advance the ethos of human rights

After three decades of democracy, attempts to eliminate systematic and institutionalised under-privilege must be welcomed. Likewise, our response to the perceived threats to efforts to enhance diversity as an ethos in public institutions and society matters. In many instances, when subjugated to hatred, hostility, or even violence, there is a tendency to believe that the best approach to such an absurd situation is more absurdity. At its most benign, such a response is not helpful to efforts to embrace diversity. At its weirdest, it garners public sympathy for hate groups and activists.

While there have been concerted efforts internationally and nationally for the progressive realisation of social rights and efforts to strengthen democratic resilience and rights-respecting societies, South Africans have been passing the buck. Rights-respecting citizens have a choice to make. They can continue to pass the buck or help build a culture where everyone achieves their potential and develops into responsible citizens.

I am convinced that beyond formal politics, the attainment of respect for cultural diversity and professing the freedom, equality, and unity of all peoples are contingent upon our collective activism and shared commitments to these values. This collective approach – although some may view it as illusory – is, in fact, our most potent weapon. Reinforcing its commitment strengthens our collective agency and resolve to respect human rights and fundamental freedoms.

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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