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PVC recycling in SA shows promising growth despite tough trading conditions

The Southern African Vinyls Association (Sava) has welcomed the plastics recycling report for 2020 released by Plastics SA, indicating that the recycling of Polyvinyl Chloride (PVC) or vinyl products in South Africa recorded a year-on-year increase of 9.5%. Despite very difficult trading conditions owing to global raw material shortages and supply chain issues, high material costs, interrupted electricity supply due to load shedding and the ravaging effects of Covid-19 on the industry, PVC was one of the only plastic polymers in the country that managed to report an increase of its annual recycling figures.
PVC recycling in SA shows promising growth despite tough trading conditions
PVC recycling in SA shows promising growth despite tough trading conditions
PVC recycling in SA shows promising growth despite tough trading conditions

“Vinyl is primarily used to manufacture products that have long lifespans (20 to 50 years or more), such as water pipes and plumbing accessories, floors, window and door profiles, cables and wiring, sports equipment, furniture and a range of lifesaving medical devices. Only 12,600 tonnes (or 9%) of the locally consumed PVC goes into packaging such as bottles, thermoformed punnets, blister packs, clingfilm and other flexible packaging. Although a small volume polymer packaging material, it is important to note that it has very specific and necessary application values. All of these vinyl products are recyclable, in high demand by recyclers, and help to reduce the amount of energy and raw materials needed to produce new products,” says Monique Holtzhausen, chief executive officer of Sava.

The total domestic demand for PVC in 2020 was 141,800 tonnes, of which 76,000 tonnes went into the manufacturing of rigids (compounds, dry blends, etc.) and 65,800 tonnes for flexibles. Although the virgin market decreased by 8.2% during this year, a total amount of 21,433 tons of PVC were recycled, of which 13,440 tonnes were flexible (PVC-P) and 7,992 tonnes were rigid (PVC-U).

“The past two years has seen the global PVC supply badly impacted by the pandemic, lockdown measures, hurricanes and other natural disasters in the northern hemisphere, as well as other domestic and international events. This has resulted in low production of chlorine, raw material shortages and PVC prices reaching a 35-year high. On the flip side, it has also helped to drive the demand for recyclate, improve our own cradle-to-cradle infrastructure and develop our circular economy,” Holtzhausen says.

South Africa currently has more than 40 recyclers which granulate and pelletise vinyl products for re-use in flooring and tiles, shoe soles or other PVC products. The biggest market (40%) for PVC recyclate continues to be the footwear industry where it is used to manufacture shoes, soles and gumboots, followed by the building and construction industry (38%) and agriculture (12%).

“Because PVC products need minimal maintenance, they require very little additional energy, raw materials and chemicals to ensure their continued functionality. Most vinyl products have the added advantage of remaining in use for a long period before they enter the waste stream. It has also been calculated that CO2 savings of up to 92% are achieved when PVC is recycled, and that recycled vinyl products have an energy demand that is typically between 45% to 90% lower than virgin PVC production (depending on the type of PVC and the recycling process).

"Although many end-markets have already been developed both for flexible and rigids, it is clear that more can be done. Our local recyclers are encouraged to continue developing and improving their recycling technologies in order to produce a consistent supply of good quality material that meets international standards. We also need to improve our collection methods and infrastructure. For this to happen, we need the buy-in of brand owners and retailers to ensure that we get back the vinyl packaging that they sell in order to effectively close the loop and thereby reduce our dependence on imports and virgin raw materials,” Holtzhausen concludes.

The Executive Summary of the 2020 Plastics Recycling report can be viewed here and the complete report can be ordered by emailing az.oc.asscitsalp@grebmulb.ennaid.

For more information visit www.savinyls.co.za.

7 Feb 2022 08:07

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