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12 October 2020 | Story Andre Damons
Prof Ivan Turok
Prof Ivan Turok, National Research Foundation research professor at the University of the Free State (UFS) and distinguished research fellow at the Human Sciences Research Council (HSRC).

New evidence provides a detailed picture of the extraordinary economic fallout from the COVID-19 pandemic. All regions lost about a fifth of their jobs between February-April, although the cities began to show signs of recovery with the easing of the lockdown to level 3. Half of all adults in rural areas were unemployed by June, compared with a third in the metros. So the crisis has amplified pre-existing disparities between cities and rural areas.

Prof Ivan Turok, National Research Foundation research professor at the University of the Free State (UFS) and distinguished research fellow at the Human Sciences Research Council (HSRC), and Dr Justin Visagie, a research specialist with the HSRC, analysed the impact of the crisis on different locations in a research report (Visagie & Turok 2020).

The main conclusion is that government responses need to be targeted more carefully to the distinctive challenges and opportunities of different places. A uniform, nationwide approach that treats places equally will not narrow (or even maintain) the gaps between them, just as the blanket lockdown reflex had adverse unintended consequences for jobs and livelihoods.

According to the authors, the crisis has also enlarged the chasm between suburbs, townships and informal settlements within cities. More than a third of all shack dwellers (36%) lost their jobs between February and April, compared with a quarter (24%) in the townships and one in seven (14%) in the suburbs. These effects are unprecedented.

Government grants have helped to ameliorate hardship in poor communities, but premature withdrawal of temporary relief schemes would be a serious setback for people who have come to rely on these resources following the collapse of jobs, such as unemployed men.

Before COVID-19

In February 2020, the proportion of adults in paid employment in the metros was 57%. In smaller cities and towns it was 46% and in rural areas 42%. This was a big gap, reflecting the relatively fragile local economies outside the large cities.
Similar differences existed within urban areas. The proportion of adults living in the suburbs who were in paid employment was 58%. In the townships it was 51% and in peri-urban areas it was 45%.

These employment disparities were partly offset by cash transfers to alleviate poverty among children and pensioners. Social grants were the main source of income for more than half of rural households and were also important in townships and informal settlements, although not to the same extent as in rural areas.  

Despite the social grants, households in rural areas were still far more likely to run out of money to buy food than in the cities.

How did the lockdown affect jobs?

The hard lockdown haemorrhaged jobs and incomes everywhere. However, the effects were worse in some places than in others. Shack dwellers were particularly vulnerable to the level 5 lockdown and restrictions on informal enterprise. This magnified pre-existing divides between suburbs, townships and informal settlements within cities.
There appears to have been a slight recovery in the suburbs between April-June, mostly as a result of furloughed workers being brought back onto the payroll. Few new jobs were created. Other areas showed less signs of bouncing back.

Overall, the economic crisis has hit poor urban communities much harder than the suburbs, resulting in a rate of unemployment in June of 42-43% in townships and informal settlements compared with 24% in the suburbs. The collapse poses a massive challenge for the recovery, and requires the government to mobilise resources from the whole of society.


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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