waste management

Genetically engineered microbes convert waste plastic into vanillin

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via Chemistry World

Scientists in the UK have genetically engineered Escherichia coli to transform plastic waste into vanillin. ‘Instead of simply recycling plastic waste into more plastic, what our system demonstrates for the first time is that you can use plastic as a feedstock for microbial cells and transform it into something with higher value and more industrial utility,’ says Stephen Wallace from the University of Edinburgh. The biotransformation ‘isn’t just replacing a current chemical process, it’s actually achieving something that can’t be done using modern synthetic methods.’

Polyethylene terephthalate (PET) is one of the most widely used types of plastic. Most existing recycling technologies degrade PET into its substituent monomers, ethylene glycol and terephthalic acid, then repurpose them in second-generation plastic materials. Wallace and Joanna Sadler, also at the University of Edinburgh, want to upcycle these monomers into alternative products.

Read the full story here: https://www.chemistryworld.com/news/genetically-engineered-microbes-convert-waste-plastic-into-vanillin/4013767.article

plastic scrap

New tool highlights the world’s ocean pollution problem

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via The Denver Channel

We know pollution is a problem, and we know waste ends up in our waterways. But it’s hard to quantify exactly how much waste and where it’s coming from. A new, first-of-its-kind data tool aims to change that by letting us see how much plastic is being dumped, and what’s being done about it.

“A lot of the waste is generated on land and ultimately can end up in the oceans being brought through rain and wind and rivers and other forms of direct dumping that produces between 19 and 23 million metric tons of plastic waste entering our oceans and lakes and rivers every single year,” said Molly Morse, project scientist at UC Santa Barabara’s Benioff Ocean Initiative.

Read the full story here: https://www.thedenverchannel.com/news/national/new-tool-highlights-the-worlds-ocean-pollution-problem

National Oceans Day And ‘The Plastic Pandemic.’ What Will You Do?

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via Forbes

The covid pandemic increased the amount of plastic used globally in our efforts to try to keep Covid-19 from spreading.

Plastic gloves, plastic bags instead of canvas shopping bags, plastic in face mask fibers, plastic face shields and even those syringes the medical professionals use to vaccinate us all. Plastic water bottles, more takeout food in Styrofoam containers, more plastic garbage bags as we cleaned more and took out the garbage more often, and don’t forget all that bubble wrap for all those online orders….Think about what plastic you used over the past 15 months, for example. Now multiply that times 320 million Americans or 7+ billion people worldwide.

Read the full story here: https://www.forbes.com/sites/joanmichelson2/2021/06/09/national-oceans-day-and-the-plastic-pandemic-what-will-you-do/

Sri Lanka Sues Singapore After Ship Spews Plastic Waste, Causing Huge Environmental Damage

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via Global Citizen

Sri Lanka is currently dealing with “the worst beach pollution in our history,” after a Singapore-owned container ship carrying toxic chemicals caught fire, burnt for 12 consecutive days, and spilled plastic debris and other hazardous waste into the ocean. 

The ship, carrying tens of tons of nitric acid, caustic soda, sodium methoxide and methane, was located nine miles off the coast of the capital of Colombo when it caught fire on May 20.

Read the full story here: https://www.globalcitizen.org/en/content/plastic-pollution-ocean-ship-sri-lanka/

As the Rest of the World Tackles Plastic Disposal, the US Remains Slow to Move

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via Science The Wire

plasic scrap

For the first time ever, international shipments of plastic waste came under global control this year. That’s because disposable plastic – a major pollutant of the world’s waters and atmosphere, fodder for incinerators, occupier of overflowing landfills, and material for costly recycling – was added to the Basel Convention on the Control of Transboundary Movements of Hazardous Wastes and their Disposal.

The convention is a United Nations treaty aimed at managing the adulterating of lands and seas with novel polluting entities, but how effectively this international protocol will work to control plastics disposal remains to be seen.

Read the full story here: https://science.thewire.in/environment/as-the-rest-of-the-world-tackles-plastic-disposal-the-us-remains-slow-to-move/

On Bonfires outside Bucharest, Waste from Western Europe

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via Balkan Insight

plastic scrap

Besides Turkey, Romania and Bulgaria have also become significant destinations for waste from Western Europe since China closed its doors. Much ends up being burned or buried, with dire consequences for the environment and public health.

On May 12, border officials in southern Romania stopped three trucks loaded with 59 tons of waste trying to enter from Bulgaria. The drivers’ paperwork did not entirely match the contents – steel, plastic and scrap metal – so the convoy was turned back.

Read the full story here: https://balkaninsight.com/2021/05/24/on-bonfires-outside-bucharest-waste-from-western-europe/

Pandemic mask mountain sets new recycling challenge

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via Phys.org.

Researchers in Australia want to transform single-use COVID masks into road material. In the United States, the protective gear is recycled into benches. And in France, they are reborn as floor carpets for cars.

plastic scrap

Used to curb the spread of COVID-19, masks are exacerbating another pandemic: plastic pollution.

Read the full story here: https://phys.org/news/2021-05-pandemic-mask-mountain-recycling.html

Microplastics are everywhere — but are they harmful?

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via Nature.com

Dunzhu Li used to microwave his lunch each day in a plastic container. But Li, an environmental engineer, stopped when he and his colleagues made a disturbing discovery: plastic food containers shed huge numbers of tiny specks — called microplastics — into hot water. “We were shocked,” Li says. Kettles and baby bottles also shed microplastics, Li and other researchers, at Trinity College Dublin, reported last October1. If parents prepare baby formula by shaking it up in hot water inside a plastic bottle, their infant might end up swallowing more than one million microplastic particles each day, the team calculated.

What Li and other researchers don’t yet know is whether this is dangerous. Everyone eats and inhales sand and dust, and it’s not clear if an extra diet of plastic specks will harm us. “Most of what you ingest is going to pass straight through your gut and out the other end,” says Tamara Galloway, an ecotoxicologist at the University of Exeter, UK. “I think it is fair to say the potential risk might be high,” says Li, choosing his words carefully.

Read the full story here: https://www.nature.com/articles/d41586-021-01143-3

A high-altitude clean-up in Bolivia’s Valley of the Souls

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via Reuters

In Bolivia’s Valley of the Souls, razor sharp rock formations pierce the blue sky above the nearby highland city of La Paz, from where urban sprawl over years has left the picturesque spot littered with plastic waste and construction rubble.

Now the rocky canyon is getting a clean up amid a wider push to spruce up the South American country’s scenic spots and waterways, with hundreds of volunteers, aided by heavy machinery, shifting over 15 tons of debris in the last week.

Read the full story here: https://www.reuters.com/world/americas/high-altitude-clean-up-bolivias-valley-souls-2021-05-04/

Covid-19: the plastic pandemic

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via Osservatorio Balcani e Caucaso Transeuropa 

Lowered on the chin or worn correctly, generously distributed in schools and workplaces, sold everywhere at a controlled price, face masks are now a constant presence in the lives of billions of people. A gust of wind or a distraction is enough for them to disperse in the environment, and already in the first months of the pandemic, when for many they were still unavailable, they had become fairly common waste on the beaches of all oceans.

But protective gear – not just masks, but also gloves, aprons, visors – are just one of the factors that have led plastic consumption to skyrocket in times of pandemic.

Read the full story here: https://www.balcanicaucaso.org/eng/Areas/Europe/Covid-19-the-plastic-pandemic-210266