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Coffee Biochar Concrete Carbon Sequestration

Posted on January 2, 2024January 8, 2024 by dishanth

Coffee is one of the most popular drinks worldwide; on average, 400 billion cups of coffee are consumed each year. As a result, approximately 18 million tonnes of coffee grounds are produced annually. Coffee grounds can be used for a variety of purposes. It can be used to fertilize your garden or added to compost. Coffee grounds can neutralize odors, can be used to exfoliate your skin, tenderize meats, and many other uses.

Despite all of these amazing uses for coffee grounds, the reality is that most of the coffee grounds produced actually end up in landfills; about 75% in fact. Rotting coffee grounds generate methane, a powerful greenhouse gas contributing to warming. Rotting coffee grounds also emit carbon dioxide, nitrous oxide, and ammonia. While there have been programs from coffee shops that will donate their coffee grounds to customers to use in their gardens (Starbucks has been part of the Grounds for Your Garden program since 1995), but most coffee shops are not implementing these initiatives.

Researchers from the Royal Melbourne Institute of Technology University in Australia have found a way to use coffee grounds on a larger scale and to eliminate the risk of them ending up in landfills. And that is to use coffee biochar concrete in the construction industry.

The researchers have developed concrete that is almost 30 percent stronger than traditional concrete by mixing in coffee-derived biochar. The coffee biochar was created using a low-energy process called pyrolysis. The organic waste is heated to 350 degrees Celsius without oxygen to avoid the risk of generating carbon dioxide. Under pyrolysis, organic molecules vibrate and break down into smaller components, creating biochar. This is a similar process that is used to roast unused beans to enhance their taste, except without the use of oxygen.

In coffee biochar concrete, about 15 percent of the sand they would use to make concrete is replaced with the coffee biochar, thus creating new concrete. The coffee biochar is finer than sand, and its porous qualities help to bind to organic material. Reducing the total use of sand in concrete will minimize the construction industry’s environmental footprint. It is said that over 50 billion metric tons of natural sand are used annually in construction. Sand mining significantly stresses ecosystems, including riverbeds and riverbanks, coffee biochar concrete can relieve some of that pressure on the environment.

The cement industry is the third largest source of industrial air pollution, including sulfur dioxide, nitrogen oxides, and carbon monoxide. Moreover, cement currently accounts for around 8% of global carbon dioxide emissions. Turning coffee- biochar into concrete will reduce the construction industry’s reliance on continuous mining of natural resources, making the industry more sustainable.

When introduced into concrete mixtures, the coffee biochar concrete was found to act as a microscopic carbon repository within the concrete matrix. The alkaline conditions within hardened concrete enable biochar to mineralize and firmly bind carbon dioxide into its structure over time. Concrete containing even a small percentage of spent coffee biochar was shown to sequester meaningful quantities of CO2 from the curing process and surrounding environment.

Utilizing waste coffee grounds to synthesize biochar for carbon sequestration could offer a sustainable way to offset concrete’s sizable carbon footprint while giving new purpose to spent grounds. With further research, coffee biochar concrete could provide a feasible carbon capture pathway for the construction industry.

The researchers estimate that if all the waste grounds produced in Australia annually could be converted into coffee biochar, it would amount to roughly 22,500 tonnes. Compare that to the 28 million tonnes of sand that are required to produce over 72 million tonnes of cement concrete in Australia. Just think: Australia has over 13 thousand coffee shops, whereas the United States has over 38 thousand coffee shops. If this project expands outside of Australia, coffee biochar concrete could significantly impact the environment and waste.

The research on coffee biochar concrete is still in the early stages; there is still a lot of testing to be done, but it shows that there are innovative and unique ways to reduce and repurpose organic landfill waste. Once the researchers can account for things like durability, the researchers will collaborate with local councils on future infrastructure projects, including the construction of walkways and pavements. Just think, we are one step closer to adding sustainability into the construction industry and one step closer to walking on coffee biochar concrete!

Source Happy Eco News

JDE Peet’s announce new sustainable coffee packaging

Posted on July 21, 2023July 21, 2023 by dishanth

JDE Peet’s is an American-Dutch coffee and tea company with a portfolio of over 50 brands including L’OR, Peet’s, Jacobs, Senseo, Tassimo, Douwe Egberts, Old Town, Super, Pickwick and Moccona.

In 2022, JDE Peet’s generated total sales of US$9.2bn, employed a global workforce of more than 20,000 employees and served approximately 4,200 cups of coffee or tea per second.

Pioneers: Sustainable packaging launch

JDE Peet’s have launched a first-of-its-kind packaging for its soluble coffee ranges as part of its net zero sustainability initiatives.

The paper packaging is recyclable and encourages consumers to reuse glass and plastic jars already in circulation.

“This is an important step in driving the sustainability agenda of our company and yet another sign of our leadership in innovation. We know that reducing packaging and promoting recyclability and reusability are increasing consumer needs,” says Fabien Simon, CEO of JDE Peet’s.

“By providing more sustainable solutions within soluble coffee, one of the world’s most beloved and consumed beverages, we can maximize our positive contribution in decarbonizing our own portfolios and the coffee market as a whole.”

Sustainability at the heart of coffee production

The packaging launch supports JDE Peet’s efforts to use 100% reusable, recyclable or compostable packaging by 2030 — 78% of its packaging is currently.

The company’s ESG initiatives operate throughout the brands, from sustainable sourcing, to burning waste coffee at factories to save landfill.

The Common Grounds programme champions an inclusive and regenerative ecosystem comprised of three pillars:

Responsible Sourcing — championing regenerative agriculture to enhance livelihoods and positively impact our planet. JDE Peet’s achieved its goal of 100% responsibly sourced palm oil by 2025 three years early.
Minimizing Footprint — striving towards a planet-positive supply chain through innovation and collaboration on sustainable solutions. JDE Peet’s has achieved zero waste-to-landfill at 22 of its 43 manufacturing facilities, and is aiming for all 43 by 2025.
Connecting People — engaging colleagues and communities to support wellbeing and promote equal opportunity. JDE Peet’s have 40% women in leadership positions, a target it had set for 2025.

“Having set carbon reduction targets with the science based targets initiative, we priorities energy efficiency projects,” says Dyfrig Davies, Engineering Manager at the JDE Coffee Manufacturing Factory in Banbury, UK.

“We’ve committed to these targets and now we have to deliver them. we’re taking action for humanity — and doing right by the planet is the right thing to do for our business as well.”

Source Sustainability

The coolest sustainability innovations of 2021

Posted on December 21, 2021 by dishanth

In a year beset with environmental and social problems made worse by a pandemic that refused to go away, scientists, engineers and other types of clever people found solutions to the world’s most pressing problems.

From lab-grown furniture to net-zero alcohol, Eco-Business highlights the sustainability innovations that gave humanity a bit of hope in another troubling year.

Milk pants

Underwear made from waste milk doesn’t sound particularly hygienic. But United States-based sustainable fabric brand Inner Mettle claims to be able upcycle underwear from surplus milk. The underwear is natural, breathable and super-soft, according to the manufacturer, which also makes shoes from recycled lycra and vegan suede.

Lab-grown furniture

Loggers take note. Furniture could soon be produced in a laboratory. Massachusetts Institute of Technology (MIT) boffins say they can rear in a lab what would take decades to grow in nature. They could even engineer the wood tissue to grow into the specific shape of the chair or table. “Trees grow in tall cylindrical poles, and we rarely use tall cylindrical poles in industrial applications,” Luis Fernando Velásquez-García, a principal scientist in MIT’s Microsystems Technology Laboratories, told Fast Company about his research paper, published in Journal for Cleaner Production. “So you end up shaving off a bunch of material that you spent 20 years growing and that ends up being a waste product.” Though the research is still in its infancy, MIT’s researcher say this could be the beginning of a new way of producing biomaterials that could also help to replace single-use plastics.

Net-zero booze

Producing a single bottle of vodka emits an average of 6 kilogrammes of carbon, according to New York-based carbon-neutral alcoholic spirits startup Air Company. The company produces carbon-negative vodka, making their alcohol from recaptured CO2 and takes an extra 45 grammes of carbon from the air in the process. Air Company’s carbon-neutral booze clinched a prize at Fast Company’s World Changing Ideas Awards this year.

Surfing to save the ocean

A surfboard that measures water acidity, temperature and wave movements could be used to find out more about the declining health of the ocean. “The reason these parameters are important is because they’re changing directly as a result of climate change,” says Dr Andrew Stern, founder of Smartfin, in a video interview with Great Big Story. “We have detailed information about the deep ocean, but very limited accurate information about the near shore.” Data is collected from an implant in the surfboard’s fin and sent the user’s phone for analysis.

Tyler Cyronak, post-doctoral fellow at the Scripps Institute of Oceanography. Image: YouTube

Coffee capsules that die

The sort of invention that should have been invented ages ago and before disposable coffee capsules made from aluminium and plastic began lining landfills: coffee capsules that actually breakdown in the environment. The Nexe Pod, developed by plant-based materials design firm Nexe Innovations, is for people who want to drink half-decent coffee instantly, without worrying as much about the packaging footprint of such convenience (because they’re already worrying about the deforestation footprint of the coffee). Nexe Pods are plant-based, compostable in just over a month, non-toxic in soils and and can apparently fit more coffee than a standard single-serve Nespresso capsule. “We are chasing the compostability side of the market,” said Nexe Innovations president Ash Guglani in an interview with Proactive in May. “There’s a lot of recyclable alternatives out there. But recycling requires work. We’re bringing convenience back to single-serve.”

Landfill-friendly coffee capsules. Image: Nexe Innovations

Gum wheels

Skateboard wheels made of recycled chewing gum. Design students Hugo Maupetit and Vivian Fischer, from Nancy in France, found a way to collect discarded chewing gum, encouraging people to stick their used gum on a sign board rather than drop it on the floor. Once 10-30 used gums had been collected, they were melted down and moulded into wheels.

Early versions of chewing gum were made from tree sap, but most modern gum is made from the same stuff as car tyres, a synthetic rubber called polyisobutylene. Image: Dezeen

Batteries from trees

The material most often used for the anode in lithium-ion batteries is synthetic graphite, which is non-renewable. Finish pulp and paper manufacturer Stora Enso says it can replace synthetic graphite with lignin, the sturdy stuff found in the cells and bark of trees, for use in the batteries found in electric vehicles, mobile phones and laptops.

Homes from shipping containers

There’s a growing surplus of shipping containers that have reached the end of their lives. German architects and developers the Schween family teamed up with real estate expert Sean Woolley to create aesthetically pleasing and affordable homes made from used containers in Marbella, Spain.

A home made from used shipping containers. Image: Sean Woolley

Eau d’Industrie

German chemicals giant BASF has found a way to create the fragrance found in perfume and the flavours found in food from industrial waste. Called n-octanol, the stuff, which is made from a mixture of carbon monoxide and hydrogen, is sourced from steel industry waste. Using this technology, companies will be able to make any product containing n-octanol from municipal and industrial waste gases, replacing fossil fuels in the production process and also preventing them from getting into the atmosphere.

Waterless beauty

Freeze-drying used to be a popular technique for preserving food for astronauts. Now beauty brands such as Korean brand Saro de Rúe and Beijing-based biotech company Weibo Hi-Tech Cosmetics are using the method for skincare products. Freeze-drying helps the product last longer, as there is no water for bacteria to multiply on, so no need for preservatives, and the product’s ingredients can be transported in vacuum-sealed bags rather than liquid containers, saving on space. If there is a drawback, they still use plastic packaging.

Rael’s moisture melt snowball. Image: Wunderman Thompson

Photovoltaic pavement

The city of Barcelona is on a mission to achieve net-zero emissions by 2050. To help it do this, it has starting laying solar panels on pathways. The first installation is 50 square metres of photovoltaic panels in a park in the Glòries district. The path will generate 7,560 kWh a year, enough to supply three households. “We’ll have to assess the wear and tear because obviously it’s not the same as putting panels on a roof, although they are highly resistant,” Eloi Badia, who is responsible for climate emergency and ecological transition at Barcelona city council, told The Guardian newspaper.

PV pavement. Image: Ayuntamiento de Barcelona

Washing with waste

Personal care giant Unilever teamed up with biotech company LanzaTech and green chemical company India Glycols to manufacture laundry capsules made from recycled carbon emissions. Launched in China in April, the capsules are made from recaptured industrial emissions which are repurposed into surfactants, a product normally made using fossil fuels.

OMO capsules, made from industrial waste. Image: Unilever

Electric steps

Footsteps can be converted into enough electricity to power LED lightbulbs or other small appliances, by attaching an energy-harvesting device to wooden flooring. Called a nanogenerator, the device is based on sandwiching two pieces of wood between electrodes.

Vegan diamonds

Diamonds are typically dug up or produced in labs. Both methods are environmentally-intensive. US firm Aether claims to make the world’s first diamonds that “help reverse the historical damage done to ecosystems and the environment by the diamond industry.” The company’s atmospheric collectors suck carbon dioxide from the sky, pulling it into specialised filters. The CO2 is then synthesised into the right hydrocarbon for growing diamonds. The raw materials are placed into powerful reactors for the diamonds to be grown. The energy used comes from “renewable and low-emissions sources”, the company told Forbes. The product is now vegan certified.

Source Eco Business