"Homes will have smaller systems built from old geysers, petrol drums and plumbing pipes," he said.
"If people can pick up the plastic in their environment and have a small system like this one, they can use it to get gas energy for cooking and get rid of [harmful] plastics.
"Taking plastic out of the environment and [using it] as fuel in our cars puts us in a position where we can remove that sort of toxic uptake where it's entering our food chain."
A USE FOR BAG WASTE
Vanessa von der Heyde, from the Sustainability Institute near Stellenbosch, said single-use plastics were some of the most environmentally detrimental wastes, and were also extremely resource-inefficient relative to their lifespan.
"South Africans are starting to take more stringent measures, and we are seeing a groundswell in civil society and organisations that are tackling the issue of single-use plastics, such as bags and straws," she said.
"Many restaurants have banned plastic straws already, or don't give you a straw with your drink unless you request one."
According to the environmental group Strawless Ocean, more than 500 million plastic straws are used every day in the US alone, and most of those end up in the sea.
It says an estimated 71% of seabirds and 30% of sea turtles have been found with plastics in their stomachs. The World Economic Forum says eight million tonnes of plastic ends up in the ocean every year.
Last year a team of scientists from the Council for Scientific and Industrial Research's polymer and composite research group in Port Elizabeth broke new ground when they developed 100% biodegradable plastic bags made from agricultural by-products.
The Dung Beetle is set to make its debut at AfrikaBurn next month before going on tour to communities around the Western Cape and Limpopo.