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02 January 2024 | Story Gerda-Marié van Rooyen | Photo Chris Nelson
Dr Maryam Amra Jordaan
Dr Maryam Amra Jordaan, co-founded SA Rebuilders.

Only 16% of plastic gets recycled in South Africa, despite technological advancements. While the Extended Producer Responsibility (EPR) Regulation of 2021 assigns post-consumer recycling responsibility to producers, substantial efforts are needed to develop effective waste management strategies, heighten public awareness, discover practical solutions, and hold plastic-producing companies accountable.

Prioritising environmental sustainability

Dr Maryam Amra Jordaan co-founded SA Rebuilders with her husband, Yasar Amra, in 2016. By combining 3D printing, chemistry, and plastic recycling, they tackle socio-economic issues while prioritising environmental sustainability. As the daughter of a miner from Kimberley, Dr Jordaan is committed to mitigating the negative effects that industries have on the health, environment, and social aspects of local communities. She was honoured with an Alumni Cum Laude Award from the University of the Free State (UFS) for her work in this regard.

Dr Jordaan’s academic journey at the UFS from 2001 to 2013 includes a BSc in Chemistry and Physiology, BSc Honours, MSc, and a PhD in Organic Chemistry. She dedicated five years to lecturing and research on the Qwaqwa Campus and four years at the Mangosuthu University of Technology (MUT). During this time, she authored 19 pharmaceutical and environmental chemistry research papers and won numerous national and international awards. She entered the UFS with dreams of assisting in some way and ended up helping to solve the Sustainable Development Goals (SDGs).

“Remarkable potential for rapid prototyping and supply chain resilience through digitisation exists, but the current energy crisis hampers the full realisation of 3D printing’s potential,” Dr Jordaan explains. Added to this, is the complex endeavour of becoming a 3D engineer. “Expertise in materials science and project management is equally essential. Creativity, quick learning, and meticulous attention to detail are all characteristics necessary to excel as a 3D engineer.”

Seeking out biodegradable product alternatives

Dr Jordaan stresses the need for effective waste management, awareness, practical solutions, and accountability for individuals and plastic-producing companies. Therefore, she promotes reusable and recyclable shopping bags, among others, and instils this behaviour in her children. The Amras actively seek out biodegradable product alternatives, as they are fully aware of the environmental impact of the manufacturing industry.

They incorporated this ideology in the manufacturing process of organic butter by transforming the plastic waste from this process into a 3D filament. This product is currently undergoing SABS testing, after which it will be available to the local market.

News Archive

Prof Tredoux turns theories regarding the formation of metals on its head
2013-09-17

 

Prof Marian Tredoux
17 September 2013

The latest research conducted by Prof Marian Tredoux of the Department of Geology, in collaboration with her research assistant Bianca Kennedy and their colleagues in Germany, placed established theories regarding how minerals of the platinum-group of elements are formed, under close scrutiny.

The article on this research of which Prof Tredoux is a co-author – ‘Noble metal nanoclusters and nanoparticles precede mineral formation in magmatic sulphide melts’ – was published in Nature Communications on 6 September 2013. It is an online journal for research of the highest quality in the fields of biological, physical and chemical sciences.

This study found that atoms of platinum and arsenic create nanoclusters, long before the mineral sperrylite can crystallise. Thus, the platinum does not occur as a primary sulphur compound. The research was conducted at the Steinmann Institute of the University of Bonn, Germany, as well as here in Bloemfontein.

Monetary support from Inkaba yeAfrica – a German-South African multidisciplinary and intercultural Earth Science collaborative of the National Research Foundation (NRF) – made this research possible. Studies are now also being conducted on other metals in the precious metal group, specifically palladium, rhodium and ruthenium.

The discovery of the nanoclusters and the combination with arsenic can have far-reaching consequences for the platinum mine industry, if it can be utilised to recover a greater amount of platinum ore and therefore less wastage ending up in mine dumps. This will signify optimal mining of a scarce and valuable metal, one of South Africa’s most important export products.

For Prof Tredoux, the research results also prove thoughts she already had some twenty years ago around the forming of platinum minerals. “Researchers laughed in my face, but the evidence had to wait for the development of technology to prove it.” Young researchers were very excited at recent congresses about the findings, since the new models can bring new insights.

“Chemistry researchers have been talking about platinum element clusters in watery environments for quite a while, but it was thought that these would not appear in magmas (molten rock) due to the high temperatures (>1 000 degrees celsius).”

Prof Tredoux has already delivered lectures at congresses in Scotland, Hungary, Sweden and Italy on this research.

Read the article at: http://www.nature.com/ncomms/2013/130906/ncomms3405/full/ncomms3405.html

 

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