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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

Using Bio-Based Materials to Build Cities

Posted on August 16, 2023 by dishanth

Did you know about 56% of the world’s population live in cities? The population numbers of urban dwellers are expected to double by 2050 when nearly 7 out of 10 people will live in cities. Cities are polluted due to industrial and motorized transport systems that rely on fossil fuels. The infrastructure that makes up cities is also constructed with carbon-intensive materials. As a result, cities account for over 70% of global carbon dioxide emissions.

We can’t eliminate these systems that make up our cities, but we can use bio-based materials to make them more sustainable. Carbon emissions could be significantly reduced if just a small percentage of new infrastructure in cities is constructed using sustainable bio-based materials. Moreover, these new buildings could also boost carbon storage and help us reach net zero.

Bio-based materials are catching on in the construction industry. They are materials that grow or are a natural part of the biosphere. Bio-based materials include Timber, straw, hemp, cork, clay, and earth. Besides being honest, these bio-based materials are renewable and have a lower, neutral, or negative embodied energy and carbon than traditional construction materials. Timber, for example, has around three times less embodied carbon than steel and over five times less than concrete.

The construction industry accounts for more than 39% of energy and process-related global carbon emissions. Using timber for building, it can store carbon rather than emit it. The Stockholm Wood City will be built in Sickla, Sweden, and is said to be the world’s biggest wooden city. Wooden construction means a significantly reduced climate impact during the construction phase and the whole life cycle. It also has a faster and quieter construction process.

Another bio-based material emerging in the construction industry is algae. Algae are being used in building facades as a sustainable way to generate heat and biomass for various purposes. The algae act like double glazing, but there is water and algae instead of air between the two panes. The algae will also absorb carbon dioxide and insulate the structure.

Hempcrete is a composite material made from hemp hurds, lime, and water. It is a strong, lightweight, and fire-resistant material that can be used for a variety of building applications, such as walls, floors, and roofs. Hempcrete is considered to be a carbon-negative bio-based material. It absorbs more carbon dioxide from the atmosphere than it produces during its production and use. Further, the production of hempcrete also requires less energy than the production of traditional building materials, such as concrete.

Because hempcrete is a good insulator, it can help to keep buildings cooler in the summer and warmer in the winter. This means that less energy is needed to heat and cool buildings, which reduces the amount of carbon dioxide that is emitted into the atmosphere.

Kenaf is a type of fiber that is made from the stems of the kenaf plant. It is a strong, durable, and lightweight fiber that can be used to make a variety of building materials, such as bricks, panels, and insulation.

Miscanthus is a type of grass that is grown for its biomass. It can be used to make a variety of building materials, such as boards, panels, and insulation.

Other benefits of using bio-based materials in the construction industry are that it helps to stimulate local economies, job creation, biodiversity and reforestation efforts. Using natural materials can help provide affordable and sustainable housing at scale.

While getting the entire construction industry on board with bio-based materials is challenging, some countries are trying to ensure this becomes the norm. The French government has ruled that any public construction financed by the state must contain at least 50% bio-based materials. Amsterdam requires that 20% of the city’s housing projects be constructed with bio-based materials starting in 2025.

As cities and population sizes grow, we will see a rise in carbon emissions. If the construction industry turns to using bio-based materials, there is a chance that we will see healthier cities and a healthier planet over time.

Source – Happy Eco News

Sustainable Housing that can be Recycled

Posted on May 4, 2023May 4, 2023 by dishanth

Building a house from the ground up can be environmentally damaging. Buildings have a significant carbon footprint, with over 41% of global energy consumption attributed to buildings and structures. Buildings and materials also produce dangerous emissions that pollute our air, and the construction industry alone generates more than 170 tons of debris annually. There is also the issue of landfill waste, excessive use of water and noise pollution caused by the construction of buildings and houses.

SPEE Architecten, an architecture firm in the Netherlands, may have found a sustainable solution for building houses. Their projects focus on innovation and sustainability and creating healthy elements for both the residents and the environment. The architects created their newest project Speehuis House to create a site that minimally impacts the surrounding trees and wetlands with a structure that could be dismantled and recycled.

The house was built in a wooded area adjacent to a wetland area. The house’s form, size and layout are tailored to the needs of a family with three and adjoins SPEE Architects’ office premises. Large, strategically-placed windows offer a lot of natural light to the inner spaces and views of the outdoors. The entire house is made of circular and biobased materials. For example, the exterior walls and sloping roofs are made from untreated, high-density, biobased bamboo slats.

The team used Bamboo X-treme beams which consist of more than 90% of thermally modified bamboo strips. Bamboo absorbs a lot of CO2 during its growth, which remains stored throughout the product’s lifespan. Bamboo X-treme is extremely durable, dimensionally stable, and harder than most types of wood. When the bamboo fibers and resin are compressed at high temperatures, the natural sugar in the bamboo caramelizes, rendering it rot-resistant. These materials can be conveniently dismantled, adapted and recycled as need be.

Most of the home’s shell, including the stairs, interior doors, desks and cabinets, is made from cross-laminated timber that was chosen to avoid using concrete. The entire shell was prefabricated in less than a week. The wood was sourced from responsibly managed forests and was selected to create a natural and healthy indoor environment and a carbon sink. The architecture team estimates that over 93 000 kg of CO2 is stored within the building. In comparison, the same building built in concrete would produce 46,694 kg of CO2.

The home that SPEE Architecten has built shows us a future of what the construction industry can look like and how we can live more sustainably. The design is spacious and tasteful and allows for comfortable living without causing harm to the environment. If more architecture firms transitioned to building homes like the Speehuis House, the environmental impact from the construction industry would decrease substantially.

Source Happy Eco News

23 Green Business Ideas for Eco-Minded Entrepreneurs

Posted on August 3, 2022 by dishanth

Today, consumers are just as interested in corporate social responsibility (CSR) as they are in a company’s products and services. This is especially good news for eco-minded entrepreneurs.

We’ve outlined 23 eco-friendly business ideas for making money and saving the planet at the same time, that can set you apart form larger companies practicing greenwashing tactics.

What is a green industry business?

A green industry business is one that uses sustainable materials to make its products. Green industry businesses aim to use as little water, energy and raw materials as possible while cutting carbon emissions, or it finds ways to utilize these materials in renewable and eco-friendly ways. This business approach minimizes the company’s strain on natural resources and contributions to climate change. In some cases, if waste is generated, it is reused as energy or raw material.

What is a green business model?

With a traditional business model, a company outlines raw material budgets, design processes, and service delivery or product distribution methods. A green business model, while ensuring ample revenue, prioritizes minimizing the company’s environmental impact instead of maximizing its profit. It may involve the restricted use of fossil fuels while emphasizing power supplied by solar panels and other approaches to drastically reduce energy consumption.

How do I start a green business?

As consumers have come to care about CSR, a greater number of green businesses have emerged, but the problems that climate change poses require many solutions. Thus, to start a green business, first identify an eco-friendly service that nobody in your market currently offers. Then think of similarly eco-minded people you know whom you could ask to join your team. Read our guide on how to start a business.

As you launch your green business, change your lifestyle to reflect the values and services of your business.

What companies are eco-friendly?

Eco-friendly companies may include outdoor apparel brands, businesses that make reusable plastic bottles, eco-friendly cleaning companies, businesses that install solar panels, a local recycling business, and many other potential ventures. If you’re looking to start your own eco-friendly, green industry business, consider any of the 23 ideas below.

1. Ink refill business

Starting an ink-refill business can not only be a highly profitable decision, it can be an environmentally conscious one, too. You might question whether refilling ink cartridges truly helps the environment considering the amount of paper that is wasted each year. However, by reusing old ink cartridges, there is less nonbiodegradable waste accumulating in landfills. Paper is still necessary in the business world, but empty ink containers are not.

2. Environmental publications

If you love to write, start your own environmentally minded publication. Your actions can make a big difference in the world. By debunking popular myths and sharing the truth about the world we live in, you can help consumers rethink how their actions affect the planet.

3. Green finance

Green finance focuses on supporting local, community-level projects with an emphasis on sustainable, ecologically friendly agriculture. Green finance is also typically concerned with providing educational opportunities, funding for artistic endeavors and projects that support local ecology.

Green finance is preoccupied with social profitability. While monetary profit remains important, the goal of green finance is to support beneficial projects that provide value to the local community and ecology.

4. Eco-friendly retail

Consumer rewards programs are popular among retailers, and e-commerce site EcoPlum is no exception. With every purchase, customers earn EcoChipz, which are redeemable for either rewards or a donation to various environmental causes. Each product sold also carries a third-party green certification or an equivalent eco-label.

Besides selling sustainably sourced products, EcoPlum produces educational content, including monthly columns by industry experts, local green business listings, recycling information, eco tips, and book and video recommendations. If you’re considering opening a retail store, consider partnering with a company that has similar values as you and your customers.

5. Sustainable construction materials

You might not think of construction as sustainable, but some companies now provide recycled materials for use in projects like infrastructure repair.

Axion, for example, with its eco-friendly products, hopes to change the way companies think about rebuilding America’s infrastructure. The company’s railroad ties and pilings are made from recycled plastic from consumer and industrial uses rather than non-sustainable materials like steel and concrete. Axion is currently working with major partners like Long Island Rail Road to improve infrastructure safely and sustainably in the United States.

6. Organic catering

A great way for eco-friendly foodies to share their passion for food and the environment is to start an organic catering company. By catering local events and business luncheons with foods containing organic and locally grown ingredients, free-range meats, and vegan, gluten-free, and paleo meal options, you’ll appeal to nature lovers and health and wellness enthusiasts alike.

Be sure, though, to minimize the impact on the environment by avoiding plastic and paper goods as much as possible and composting food waste.

7. Eco-friendly beauty salon

If cosmetology is your passion, start a beauty business that’s Mother Nature-approved. Organic and vegan hair and beauty products are popping up everywhere. A way to make this trend work for you is to open an eco-friendly beauty salon. You can open a hair salon that uses all-natural shampoos and conditioners or a nail salon that uses environmentally friendly and vegan polishes and spa treatments.

8. Eco-friendly landscaping

Professional landscaping may make your lawn and garden look nice, but all of that maintenance isn’t necessarily great for the environment. With some eco-friendly advice and know-how, you can help homeowners make their yards literally and figuratively greener. SheKnows recommends synthetic turf, drought-resistant plants and strategically placed trees for a lawn that saves water, energy, and money.

9. Sustainable event planning

Whether they’re big or small, meetings and events can generate large amounts of waste and consume valuable resources. Green event planners use their expertise and event-planning skills to find eco-friendly venues, materials, and accommodations.

Sustainable event management benefits more than just the planet. There are financial advantages, plus it generates a positive image for event organizers, vendors and stakeholders while raising awareness, and inspiring change in the community.

10. Bicycle repair and refurbishing

Biking short distances instead of driving is better for the environment and your health. Like most modes of transportation, bicycles occasionally need a tune-up.

You could be the expert cyclists come to when their bikes need repairing or maintenance. If you have some extra space, you could purchase inexpensive older bikes, fix them up and sell them for a profit.

11. Handmade all-natural/organic products

Soaps, cosmetics and cleaning products are just a few of the household products that can be made using common organic materials.

Sure, anyone can find a recipe for a sugar scrub or vinegar-based cleaning solution and do it themselves, but if you package and sell them in sets, your customers conveniently have those all-natural products at their fingertips. Local markets and events are a good place to sell, or you could start an online store.

12. Eco-consulting

Are you an expert on green living? Start an eco-consulting service. Consultants evaluate homes and offices, and offer solutions to make them more environmentally friendly.

You could advise clients on switching their home appliances to more energy-efficient machines or implement a recycling program. To further boost your credibility, become a certified eco-consultant.

13. Farmers market vendor

Thanks to the organic movement, those with a green thumb have a golden opportunity to earn money by selling non-GMO, pesticide-free produce at their local farmers market.

Selling naturally grown fruits and vegetables gives you a distinct advantage over competing growers who use conventional farming methods, including pesticides. You may have to be approved and/or get certified by your local board of health first before you can begin selling.

14. Green housekeeping services

For working parents, cleaning the house can be at the bottom of the to-do list. Market yourself as the green solution to their housekeeping woes by offering services that range from light dusting to heavy-duty chores like cleaning the kitchen and bathroom, using only approved all-natural and eco-friendly cleaning products.

Charge an hourly rate or create your own service packages for a flat fee. Remember, your clients are giving you access to their homes. Build a trustworthy reputation with people you know first before advertising to strangers.

15. ‘Upcycled’ furniture

Don’t throw out your old, broken furniture. With basic templates and access to power tools, you can break down and reassemble chairs, tables and dressers into new pieces that you can paint and sell. Shelving and storage units are easy to make from wood scraps, and depending on the item, you might even be able to fully restore a unique and valuable piece of furniture.

Alternatively, you could reupholster old chairs and couches, giving them new life. Buying secondhand doesn’t just save money, it also helps the environment.

16. Green franchises

Want to run a business with a solid brand and customer base already in place? Investing in a franchise might be the answer. While franchising might call to mind fast-food joints and hotel chains, there are many eco-friendly franchise businesses.

17. Secondhand store

New things are typically expensive, and pretty soon, those costs add up. For example, a new book could cost $15 to $30, while a used book usually costs only a couple of dollars.

Opening a secondhand store not only saves your customers money, it’s better for the environment. Instead of tossing a perfectly good item into the trash, encourage consumers to donate their used items to you so another person can get value out of that item. You can sell used clothes, coats, books, kitchen appliances and furniture.

18. Green consulting

Whether it’s cutting energy costs or reducing their carbon footprint, the pressure for businesses to adopt green practices is high, and it’s only going to grow.

Business sustainability consultant Barbara Englehart said there are numerous benefits for companies that go green, including reduced costs, risks and liabilities, and increased employee retention and productivity.

“This is all quite new in the business world, and companies need help,” Englehart told Business News Daily. “They weren’t teaching sustainability in business schools five or 10 years ago.”

19. Solar panel installation

Many green-minded homeowners have installed solar panels on their homes, and many more would like. If you know how to do this, offer this service in your area.

20. Eco-friendly cleaning

Common cleaning products contain chemicals that contribute to pollution, and harm people and pets that come in contact with them. Starting an eco-friendly cleaning business counters this problem. Your eco-friendly cleaning business can exclusively use nontoxic products or use brands that minimize their use of single-use plastics. You can further decrease your company’s environmental impact by reusing greywater whenever possible.

21. Reusable plastic bottles

Single-use plastics are indisputably a leading cause for concern among environmentalists. Offer people a way to drink water on the go without contributing to plastic pollution by launching a green industry business that designs, produces and sells reusable plastic bottles. Explore using alternative materials such as metal or glass, bottles made from recycled plastic, or renewable plastics from materials like corn starch or sawdust.

22. Environmental impact and carbon emissions lessons

Many people aren’t aware of just how much carbon emissions their daily activities produce and the impact those activities have on the environment. Offer classes to educate the public about how driving, using air conditioning in the summer, leaving lights on unnecessarily, flying and other activities contribute to carbon emissions. You can also teach people how to reduce the environmental impact of these activities.

23. Local eco-friendly recycling business

Chances are that your town’s department of public works oversees a public recycling program, but many experts say that what you put in your recycling bin doesn’t always get recycled. Some municipalities don’t accept all types of recyclable containers, while others may not thoroughly sort the collected recycling. Open an eco-friendly local recycling business to guarantee your community that their goods are recycled.

Source Business News Daily