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Along with the corporate Green Recycling in Rogaland, SINTEF is planning to research quite a lot of applied sciences geared toward changing low high quality plastic from synthetic turf into recyclable supplies. Credit score: Pixabay

It’s troublesome to recycle synthetic turf and there are not any apparent deposit-return techniques for these plastics available on the market. However researchers are actually seeking to discover a answer to the issue.

“In the present day, all synthetic turf leads to the setting, both within the type of greenhouse gases or microplastic,” says SINTEF researcher Ross Wakelin.

However may it’s doable to make redundant synthetic turf into one thing helpful as a substitute? Along with the corporate Green Recycling in Rogaland, SINTEF has launched a mission wanting into applied sciences that may flip low high quality plastic from synthetic turf and different waste into reusable supplies. Such a course of is essential to what we name the “round financial system.”

One thought is to transform the bogus turf into chemical substances that can be utilized to fabricate new plastic merchandise. This may assist to scale back and prolong the lifetime of the fossil useful resource.

Why not merely ban synthetic turf?

It has been steered now and again that synthetic turf must be banned in Norway. One various is to make use of gravel pitches, however these don’t permit gamers to develop the identical degree of abilities as they might on turf. Footballs transfer in another way on gravel than on turf and sliding tackles could be virtually not possible.

“A straightforward answer could be to ban the usage of synthetic turf, however this generates different impacts that must be considered,” explains Wakelin. “The Norwegian local weather makes the upkeep of resilient pure grass pitches very troublesome, and these additionally generate emissions and have detrimental impacts on the setting,” he says.

“In Norway, entry to all-weather sports activities amenities is essential to offering youngsters with alternatives for bodily exercise, and is important to ,” says Wakelin It is a public well being subject,” he provides.

Deposit-return system for synthetic turf?

Ross Wakelin has quite a lot of concepts, based mostly on rules, that could possibly scale back the quantity of synthetic turf that finally ends up polluting the setting.

“The discharge of synthetic turf elements into the setting, comparable to rubber crumb granules, is linked to underestimates of the worth of synthetic turf,” he says.

Wakelin believes that we’ve to acknowledge the true worth of this materials. We merely have to extend the to not discard all of the elements in synthetic turf pitches, however to recycle them as the idea for brand spanking new merchandise.

“The deposit-return system employed for is an efficient instance of what occurs when waste is valued as a useful resource,” says Wakelin “In international locations that haven’t any such techniques, it’s nonetheless frequent to see plastic bottles kicking round within the cities and cities and polluting the pure setting,” he says.

However environmental safety measures, waste reception facilities and deposit-return techniques are simply the beginning. We nonetheless must discover a means of “changing” plastic waste into helpful merchandise.

We’re ‘super-consumers’

If we proceed to devour and discard our sources on the fee we’re at the moment, we are going to want greater than two planets by 2050. That is the unmistakable prognosis issued by the EU Fee in its doc “Roadmap for a Useful resource-Environment friendly Europe.”

This is the reason we can not proceed to disregard the truth that the sources obtainable to us at the moment usually are not inexhaustible.

“The issue isn’t confined to the tiny particles contaminating the , dumping, and poor waste administration,” says Challenge Supervisor Daniela Lima at Green Recycling. “As people, we’re at present consuming sources as if there was no tomorrow. Combustion amenities are sometimes the ultimate vacation spot for synthetic turf, however then new sources must be discovered to make new pitches,” she says.

“We launched this mission with SINTEF with the goal of discovering a sustainable and round answer for managing redundant ,” says Lima. “We consider that can happen with out over-exploiting the planet’s sources and negatively impacting on the setting,” she says.


Why artificial turf may truly be bad for kids


Quotation:
Dangerous synthetic turf could be made right into a helpful useful resource (2022, August 17)
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To help meet global EV demand, researchers develop sustainable method for recycling older lithium-ion batteries

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To help meet global EV demand, researchers develop sustainable method for recycling older lithium-ion batteries


Professor Gisele Azimi and PhD candidate Jiakai (Kevin) Zhang have proposed a brand new, extra sustainable methodology to get better helpful metals from lithium-ion batteries which have reached the tip of their helpful lives. Credit score: Safa Jinje

A College of Toronto researcher has developed a brand new method to assist recycle the metals in lithium-ion batteries, that are in excessive demand amid surging world gross sales of electrical automobiles.

Gisele Azimi, a professor within the departments of supplies science and engineering and chemical engineering and utilized chemistry within the School of Utilized Science & Engineering, and her workforce have proposed a brand new, extra to mine helpful metals—together with lithium, but additionally cobalt, nickel and manganese—from which have reached the tip of their helpful lifespan.

“Getting these metals from uncooked ore takes a variety of energy,” says Jiakai (Kevin) Zhang, a Ph.D. candidate in chemical engineering and utilized chemistry who’s lead writer on a brand new paper not too long ago revealed in Sources, Conservation and Recycling.

“If we recycle current batteries, we will maintain the constrained provide chain and assist deliver down the price of EV batteries, making the automobiles extra inexpensive.”

A part of Canada’s dedication to succeed in net-zero emissions by 2050 features a obligatory goal requiring 100% of recent light-duty automobiles and passenger vehicles offered within the nation to be electric by 2035.

Attaining this goal would require a rise within the provide of vital metals, the worth of which is already very excessive. For instance, cobalt, a key ingredient within the cathode manufacturing of lithium-nickel-manganese-cobalt-oxide (generally abbreviated as NMC) batteries extensively utilized in EVs, can be one of the costly parts of lithium-ion batteries attributable to its restricted reserve.

“We’re about to succeed in a degree the place many lithium-ion batteries are reaching their ,” says Azimi. ”These batteries are nonetheless very wealthy in components of curiosity and might present a vital useful resource for restoration.”

Not solely can recycling present these supplies at a decrease value, nevertheless it additionally reduces the necessity to mine uncooked ore that comes with environmental and moral prices.

The life expectancy of EV batteries is from 10 to twenty years, however most automotive producers solely present a assure for eight years or 160,000 kilometers—whichever comes first. When EV batteries attain finish of life, they are often refurbished for second-life makes use of or recycled to get better metals. However right now, many batteries are discarded improperly and find yourself in landfills.

“If we hold mining lithium, cobalt and nickel for batteries after which simply landfill them at end-of-life, there shall be a damaging environmental impression, particularly if corrosive electrolyte leaching happens and contaminates underground water programs,” says Zhang.

Standard processes for recycling lithium-ion batteries are based mostly on pyrometallurgy, which makes use of extraordinarily excessive temperature, or hydrometallurgy, which makes use of acids and decreasing brokers for extraction. These two processes are each energy intensive: pyrometallurgy produces greenhouse fuel emissions, whereas hydrometallurgy creates wastewater that must be processed and dealt with.

In distinction, Azimi’s lab group is utilizing supercritical fluid extraction to get better metals from end-of-life lithium-ion batteries. This course of separates one part from one other through the use of an extracting solvent at a temperature and strain above its vital level, the place it adopts the properties of each a liquid and a fuel.

To get better the metals, Zhang used carbon dioxide as a solvent, which was dropped at a supercritical section by growing the temperature above 31ºC, and the strain as much as 7 megapascals.

Within the paper, the workforce confirmed that this course of matched the extraction effectivity of lithium, nickel, cobalt and manganese to 90% when in comparison with the standard leaching processes, whereas additionally utilizing fewer chemical substances and producing considerably much less secondary waste. In actual fact, the primary supply of energy expended through the supercritical fluid extraction course of was as a result of compression of CO2.

“The benefit of our methodology is that we’re utilizing from the air because the solvent as an alternative of extremely hazardous acids or bases,” she says. “Carbon dioxide is plentiful, low cost and inert, and it is also simple to deal with, vent and recycle.” 

Supercritical fluid extraction just isn’t a brand new course of. It has been used within the meals and pharmaceutical industries to extract caffeine from espresso beans because the Nineteen Seventies. Azimi and her workforce’s work builds on earlier analysis within the Laboratory for Strategic Supplies to get better from nickel--hydride batteries.

Nevertheless, that is the primary time that this course of has been used to get better metals from lithium-ion batteries, she says.

“We actually imagine within the success and the advantages of this course of,” says Azimi.

“We are actually shifting in direction of commercialization of this methodology to extend its know-how readiness degree. Our subsequent step is to finalize partnerships to construct industrial-scale recycling amenities for secondary sources. If it is enabled, it will be a giant sport changer.”


Closed-loop cobalt recycling from spent lithium-ion batteries based on a deep eutectic solvent


Extra info:
Jiakai Zhang et al, Recycling of lithium, cobalt, nickel, and manganese from end-of-life lithium-ion battery of an electrical automobile utilizing supercritical carbon dioxide, Sources, Conservation and Recycling (2022). DOI: 10.1016/j.resconrec.2022.106628

Quotation:
To assist meet world EV demand, researchers develop sustainable methodology for recycling older lithium-ion batteries (2022, October 4)
retrieved 5 October 2022
from https://techxplore.com/information/2022-10-global-ev-demand-sustainable-method.html

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Using microwaves for low-cost production of alkali metallic phosphate nanocomposites for use in sodium-ion batteries

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Using microwaves for low-cost production of alkali metallic phosphate nanocomposites for use in sodium-ion batteries


Using microwaves for low-cost production of alkali metallic phosphate nanocomposites for use in sodium-ion batteries
Synthesis means of sodium iron phosphate via ball milling and microwave assisted and meeting of associated batteries and supercapacitors. Credit score: Scientific Experiences (2022). DOI: 10.1038/s41598-022-20329-x

A staff of researchers at Superior Expertise and New Supplies Analysis Institute in Egypt has developed a quick and cheap solution to synthesize alkali metallic phosphate nanocomposites to be used in sodium-ion batteries. Of their paper revealed within the journal Scientific Experiences, the group describes their course of and the way properly it labored.

With the continued rising demand for battery-powered merchandise reminiscent of vehicles and telephones, there’s elevated consideration centered on batteries. The present normal is the . However is getting more durable to seek out as it’s not very plentiful, so scientists have been searching for different. To this point, sodium-ion batteries appear to carry probably the most promise. Sodium is kind of plentiful and straightforward to mine, and batteries made with it could be a lot greener than these made with lithium—and safer as a result of they might not pose an explosion danger.

Sadly, such batteries nonetheless price extra to make than , which is why researchers such because the staff in Egypt are searching for cheaper methods to make them. On this new effort, they’ve developed a that entails the usage of microwaves as a heating mechanism.

The brand new methodology concerned first mixing Fe3(PO4)2, 8 H2O, Na2HPO4, glucose and ACM. As soon as combined, the fabric was ball milled after which positioned in a microwave gadget (the researchers used an ordinary off-the-shelf microwave oven) together with a mix of rice straw ash to facilitate heating.

After heating after which cooling, the ensuing materials was a mixture of sodium, iron phosphates-carbon nanocomposites that may very well be used to make a sodium-ion battery cathode. The researchers word that the heating course of occurs in roughly 60 seconds. Additionally they word their processing approach is considerably sooner than others which have been tried and doesn’t contain the usage of high-purity inert gases throughout any stage of processing, which, they level out, reduces the price of manufacturing.

The researchers word that along with use in making , the approach they developed may be used to make sodium-ion supercapacitors.


Block copolymer electrolyte used to make stable sodium metal batteries


Extra info:
Wael Wazeer et al, Extremely-fast green microwave assisted synthesis of NaFePO4-C nanocomposites for sodium ion batteries and supercapacitors, Scientific Experiences (2022). DOI: 10.1038/s41598-022-20329-x

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Utilizing microwaves for low-cost manufacturing of alkali metallic phosphate nanocomposites to be used in sodium-ion batteries (2022, October 4)
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Online tool offers industry easier way to track carbon footprint

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Online tool offers industry easier way to track carbon footprint


Credit: Pixabay/CC0 Public Domain

Researchers at Oak Ridge National Laboratory have developed an online tool that offers industrial plants an easier way to track and download information about their energy footprint and carbon emissions.

Visualizing Energy Reporting Information and Financial Implications, or VERIFI, is a tool that uses an open-source framework with a utility dashboard. It allows energy coordinators and plant managers to monitor and improve their understanding of energy and water use patterns including the amount of carbon emitted from . Users can generate automatic reports, too.

“Industries want to know how to conserve and improve efficiency while reducing costs but often don’t know how to begin or lack the time to track it,” ORNL’s Kristina Armstrong said. “VERIFI provides a user-friendly platform for monitoring energy efficiency benchmarks and baselines and allows for the visualization of energy and utility bills.”


New evaluation framework for energy neutrality potential of wastewater treatment plants


Citation:
Online tool offers industry easier way to track carbon footprint (2022, October 4)
retrieved 4 October 2022
from https://techxplore.com/news/2022-10-online-tool-industry-easier-track.html

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