LONDON. — From surgical masks and gloves to disposable hospital gowns and aprons, the COVID-19 pandemic is creating a mountain of plastic medical waste that is polluting the land and sea — alarming doctors and environmentalists alike.
One young entrepreneur in Mexico has now invented a range of reusable PPE (personal protective equipment) she hopes will stop tons of single-use medical wear ending up in landfill, incinerators and waterways — and save hospitals a fortune.
Tamara Chayo said disposable PPE not only caused environmental damage but could spread the virus which survives up to three days on plastics — a particular concern in countries where medical waste management is poor.
“Most of my family are doctors and nurses. They think, ok, I’m saving humans, but I’m not saving the planet,” Chayo told the Thomson Reuters Foundation.
“And if everything is thrown away it will create more disease, so it becomes a never-ending cycle.”
Chayo, a 21-year-old chemical engineering student, co-founded MEDU Protection in mid-2020 to develop a sustainable suit to protect health professionals treating COVID-19 patients at a time when PPE was in short supply.
The garments are made from a fabric similar to the coating used on surfaces in viral research laboratories.
Chayo says a doctor can use four disposable gowns a day whereas her PPE can be worn all day and washed 50 times without losing its protective properties – meaning each garment saves 200 plastic items from landfills and incinerators.
“I’m really excited about this,” said Chayo, many of whose family members have been working on the COVID-19 frontline.
“We’re not just making medical apparel, we want to create a movement for a greener medical industry.”
‘PLANET-SAVING PPE’
MEDU’s garments are embedded with QR technology which informs health workers, via a smart phone app, how many times an item has been washed.
After 50 wears the PPE is returned to MEDU which disinfects it and converts it into cotton scrubs and bags for packaging its products.
Chayo, who plans to expand to the United States and France, estimated reusable medical apparel could slash hospital PPE spending by 90%.
Approximately 129 billion disposable masks, mostly made from plastic microfibers, and 65 billion disposable gloves have been used every month during the pandemic, according to a study in the journal Environmental Science and Technology.
The United Nations estimates about 75% of plastic generated by the pandemic – including medical waste and packaging from home deliveries during lockdowns – will likely end up in landfills or the sea.
The production of plastic which uses fossil fuels as a base material – and its incineration when discarded – is also a significant driver of climate change.
Tom Dawson, founder of Revolution-ZERO which has developed a range of “planet-saving PPE” in Britain, said the pandemic had reversed recent progress on cutting plastic use.
While there was “phenomenal” interest in reusable PPE, he said there were obstacles to its adoption.
When the pandemic struck many governments stockpiled disposable PPE which they are supplying free, meaning hospitals have no economic incentive to buy reusable products.
Another problem is the lack of clinical grade laundries which have disappeared as hospitals switched to disposable PPE.
MASKS INTO BRICKS
From Britain to India, entrepreneurs are also looking at how to recycle plastic PPE – turning it into everything from toolboxes to bricks.
In Wales, Thermal Compaction Group (TCG) makes machines about the size of a large American fridge that melt down hospital gowns, masks, hairnets, tray wraps and ward curtains into plastic bricks.
The plastic can be used to manufacture anything from school chairs to 3D printer filament and yarn for clothing.
“It takes what’s designated as a single-use product and actually turns it into a multi-use product,” said TCG managing director Mat Rapson.
The temperature inside TCG’s Sterimelt and Curtainmelt machines exceeds 300 degrees Celsius (572°F), killing COVID-19 and other pathogens.
Five UK hospitals have begun using the machines with more placing orders. TCG is also liaising with distributors in Canada, Australia and Hungary among other countries.
About 6,500kg of CO2 emissions are saved for every 10,000kg of material processed, Rapson said — mostly due to savings on transporting and incinerating the waste. — Reuters
