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Tag: eco-friendly plastics

Invasive Species Refined: Bioplastics from Water Hyacinth

Posted on by dishanth
Invasive Species Refined: Bioplastics from Water Hyacinth

In a pioneering breakthrough, researchers have unveiled an innovative technique to make bioplastics from water hyacinth (Pontederia crassipes) to solve pollution and plastic waste. Leveraging the notorious water hyacinth, an invasive aquatic weed causing havoc in waterways, the scientists have demonstrated a circular approach to tackle environmental challenges.

Revolutionizing Bioremediation and Value-Added Products

Water hyacinth is endemic to South America and was introduced to North America and the rest of the world as an ornamental plant. However, once in the environment, they are infamous for choking waterways, causing damage to ecosystems, and causing over $100 million in annual control costs in the U.S. alone. However, the research team at the University of California, Riverside, led by Dr. Zhiwei Hu, discovered a way to harness the potential of this invasive plant for environmental redemption. Their technique involves using water hyacinth to absorb and break down pollutants from wastewater, addressing excessive nutrient pollution, and then converting the biomass into valuable bioplastics and fertilizer.

“We aimed to tackle two environmental problems — excessive nutrient pollution and plastic waste — with one circular solution,” explained Dr. Hu. “And we discovered the resulting bioplastics from water hyacinth perform on par with standard petrochemical plastics in terms of flexibility, durability, and strength.”

This groundbreaking approach provides a sustainable solution to the environmental issues associated with water hyacinths and offers a valuable resource for manufacturing bioplastics from water hyacinths. The researchers are investigating ways to enhance the experimental bioplastics to enable full industrial substitution for materials like polyurethane in consumer goods.

Turning a Troublesome Weed into a Resource

Fueled by excessive nitrogen and phosphorous levels in surface waters, water hyacinth outbreaks have been wreaking havoc on freshwater habitats. Creating bioplastics from water hyacinths and other valuable products could jumpstart more resilient regional bio-manufacturing ecosystems.

“The collaboration between wastewater treatment plants and our water hyacinth bioremediation technique combined with material generation is under exploration,” noted Dr. Hu. “Scaling this will help relieve stress on conventional plastic supply chains while supporting greener, carbon-conscious manufacturing.”

Towards a Greener Future: Scaling and Collaboration

The potential for scaling bioplastics from water hyacinths holds promise for addressing the challenges posed by water hyacinths and contributing to sustainable manufacturing practices. Water hyacinth is an invasive aquatic plant that can cause substantial ecological and economic damage by outcompeting native species, reducing biodiversity, and impeding water flow.

However, researchers have discovered that the fibrous tissues and polymers within water hyacinth can be extracted and used as feedstock for biodegradable plastics. By repurposing these invasive plants into valuable bioplastics, an immense potential exists for transforming an environmental burden into economic opportunity.

The research showcases the environmental benefits and highlights the economic potential of repurposing invasive plants. Scaling up bioplastic production from water hyacinth could provide a renewable, compostable alternative to conventional petroleum-based plastics.

Water hyacinth is an ideal candidate for sustainable bioplastic feedstock as an abundant and fast-growing invasive species requiring no additional land, water, or nutrient resources. If successful, this approach could present an economically viable alternative to conventional plastic production, supporting ecological resilience through invasive plant control and closed-loop manufacturing powered by renewable plant biomass.

Additionally, the bioplastics from water hyacinths offer promising mechanical properties comparable to polyethylene and polypropylene. The research indicates that water hyacinth bioplastics could replace conventional plastics in various applications. By incentivizing large-scale harvesting of invasive plants, bioplastic production can mitigate ecological damage while meeting material demands.

Unlikely Collaborations: A Key to Sustainable Solutions

The collaboration between scientists and troublesome flora exemplifies the potential for finding solutions where they are least expected. By tapping into the disruptive tendencies of invasive plants, the research opens up new possibilities for environmental redemption and industrial symbiosis.

As the world grapples with pollution and plastic waste, bioplastics from water hyacinths offer hope. It showcases the transformative power of unlikely collaborations and the ability to turn environmental challenges into opportunities for innovation and positive change. The researchers believe that such groundbreaking initiatives could pave the way for a greener, more sustainable future in both environmental conservation and manufacturing.

 

 

 

 

 

 

Source   Happy Eco News 

 

Danish City First To Test Return System For Reusable Coffee Cups

Posted on by dishanth
Danish City First To Test Return System For Reusable Coffee Cups

The Danish city of Aarhus launched a three-year trial program to curve down the number of disposable coffee cups where locals can use a deposit system for reusable takeaway packages.

Like in other Nordic and Central European countries, in Denmark deposit system where one receives back money one pays when purchasing a plastic bottles or cans is already in place

The project that focused on eliminating disposable cups trash is the result of a collaboration between the Municipality of Aarhus and the recycling company TOMRA which already provides other waste collection services to the city.

For a year and a half in 2022, the company All In On Green’s robotic arm SeaProtectorOne deployed in the water, collected over 100,000 disposable glasses from the city’s river Å – from which the city derived its name – demonstrating a huge level of plastic pollution in the city.

”Aarhus must be greener and more sustainable, and Aarhus must be a city where we have the courage to test new solutions.” said Nicolaj Bang, Aarhus’ councillor for technology and environment in a press release. “We use enormous amounts of takeaway packaging in Denmark, and consumption is increasing. Therefore, it really matters if we can make it easier for both consumers and businesses to choose a more sustainable alternative to disposable packaging,” he stated.

Aarhus is the second biggest city in Denmark, counting around 336,000 inhabitants – and potential disposable cup users. The trial has been set as voluntary, but so far already 44 cafés and bars in the center of the city got interested in the project – perhaps even some frequented by King Frederik X, when he used to study at the city’s university.

Initially, 40,000 cups in two designs will be produced and around 25 deposit machines will be established in the city so that citizens can return their cups, and cash back some Danish kroner. Geir Sæther, senior vice president for circular economy at TOMRA said the company expects ‘to be able to expand the system to other types of packaging in the near future’, so to facilitate the transition from single-use to reusable packaging.

The return fee for a reused cup is just over 70 dollar cents (DKK 5) , but it is not for the money that citizens should start returning their cups: ”Recycling saves the earth’s resources and our emission of CO2. More recycling means that there is less waste that ends up as rubbish in our city and our nature,” said Bang.

This is the first city in Denmark, and the world, to carry out such city experiments, although Copenhagen had previously trialed an experimental system where pizza containers, sushi trays and coffee cups should be able to be returned in the hip area of Kødbyen, situated in a central neighborhood. Currently, Danish startup Kleen hub is experimenting in the capital with its third-generation return system based on a single bank card tap.

TOMRA’s ceo Tove Andersen said in a press release that “Aarhus shows the way to one more sustainable future, and we hope that many more cities will be inspired to do the same,”.

Cities and regional authorities have so far acted upon consumer behaviors to decrease different kinds of pollution in their cities: “These policies are quietly working because local governments are addressing climate change with communities long-term together with other challenges that people care about, like healthy diets and supporting local businesses,” said Olivier de Schutter, co-chair of the sustainable food system expert team IPES-Food.

 

 

 

 

Source  Forbes

 

 

New Plastic Recycling Rules in Australia

Posted on by dishanth
New Plastic Recycling Rules in Australia

The Background to the Decision

Since industrialization, humans have had a remarkable capacity to alter and change our environment on a large scale.

To facilitate the growth of industry, we have allowed companies and other organizations to pollute the environment indiscriminately with no regard for the people, creatures, and nature that have been impacted.

In most regards, we think of pollution as the toxic air spewed from industrial plants into our atmosphere. While that is a problem, make no mistake about it, there are other problems that rapid industrialization has had on our world.

One of those is plastic pollution, the byproduct of cheap disposable products wrapped in material that the environment cannot break down easily.

While some moves by industry have seen eco-friendly plastics being used in mass production, these examples are few and far between, to the dismay of eco-friendly citizens worldwide.

In some countries, though, that appears to be shifting. Recently a coalition of governments has pushed through legislation for new plastic recycling rules in Australia, forcing companies to take serious measures to curb their output of non-biodegradable plastic products.

How do the new Plastic Recycling Rules in Australia work?

The decision to impose new plastic recycling rules in Australia was made at the first meeting of federal and state environmental ministers in Sydney on Friday, June 9th. Tanya Plibersek, the federal environment minister, said that the “historic agreement” meant packaging would be “subject to strict new government rules.”

The new rules include the following:

  • A ban on single-use plastic bags.
  • A ban on selling disposable coffee cups made from expanded polystyrene (EPS).
  • A requirement for all plastic packaging to be recyclable or compostable by 2025.
  • A requirement for all plastic packaging to be labelled with clear information about its recyclability.

According to a communique released after the agreement, the new plastic recycling rules in Australia would shift the country towards a more circular economy, with the rules addressing three specific areas: packaging design, outlawing harmful chemicals and plastics, and harmonizing curbside plastic recycling.

These decisions were made in the backdrop of the goals Australia has set in regard to plastic recycling. The Australian government has said that the new rules will cost the economy $1.1 billion over the next ten years, but the benefits of reducing plastic waste outweigh the costs.

As per the voluntary model that Australia has right now, only 18% of plastic is recycled in the country, far short of the 70% goal by 2025 that it has set.

Many have come out supporting this move; the Boomerang Alliance, a coalition of 55 environment groups, stated that this was the first “substantial and meaningful step” to address plastic waste in over 20 years.

It’s not just environmentalists that are lauding this decision, as major companies such as Nestlé, Coca-Cola, and Unilever have all come out in support.

 

For the People, by the People.

Serious change needs to be made in order to address the problem of plastic waste pollution worldwide. While it would be nice to believe that companies would willingly make the decision to cut back and recycle on their own, the reality is that it isn’t in their best interest to do so.

These programs cost money, and the incentive for shareholders is to increase profits no matter what. Government regulations will force these companies to accept the new way of doing things as simply a cost of doing business, thus ensuring that the people’s best interest is upheld as a primary objective.

Ultimately, this is what governments are for, and hopefully, with the example of these new plastic recycling rules in Australia, this action will spur other governments in other countries to make similar decisions.

 

 

 

 

Source  Happy Eco News

Eco-Friendly Crab Shell BioPlastic Wrap

Posted on by dishanth
Eco-Friendly Crab Shell BioPlastic Wrap

Recently, there has been a growing demand for eco-friendly alternatives to plastic. One promising option is a new type of crab shell bioplastic wrap made from waste grab shells and wood pulp. This new film is flexible, transparent, and can be used to wrap food like plastic wrap. It is also biodegradable and compostable, making it a more sustainable option for food packaging.

Crab Shell BioPlastic Wrap

The new crab shell bioplastic wrap is made by spraying alternating layers of chitin and cellulose fibres sourced from discarded crab shells and wood pulp, respectively, onto a polylactic acid (PLA) base. Chitin is a natural polymer that is found in the exoskeletons of insects and crustaceans. Cellulose is a natural polymer that is found in the cell walls of plants. PLA is a bio-based plastic that is made from renewable resources, such as corn starch.

The new plastic wrap has a number of advantages over traditional plastic wrap. It is made from renewable resources, is biodegradable and compostable, and does not release harmful toxins into the environment. It is also transparent, flexible, and odourless.

The main material that the new plastic wrap is compared to is PET or polyethylene terephthalate. It is one of the most common petroleum-based materials used in transparent packaging, such as vending machines and soft drink bottles. The material showed up to a 67 percent reduction in oxygen permeability compared to some forms of PET. This means that the new plastic wrap could, in theory, keep foods fresher for longer.

In addition to plastic film, PET plastic is used in a variety of applications, including:

  • Bottles: PET is the most common material used for beverage bottles, such as water, soda, and juice. It is also used for some food packaging, such as salad dressing and oil bottles.
  • Fibres: PET is used to make a variety of fibres, including polyester, which is used in clothing, carpets, and other textiles.
  • Films: PET makes various films, including food packaging, insulation, and tapes.
  • Other applications: PET is also used in various other applications, such as electronics, automotive parts, and construction materials.

The new plastic wrap is still in its early stages of development, but it can potentially be a major breakthrough in the fight against plastic pollution. As the technology continues to develop, it is likely to become more widely available and replace traditional plastic wrap in a number of applications.

 

Benefits of Using Crab Shell BioPlastic Wrap:

There are a number of benefits to using crab shell bioplastic wrap. These benefits include:

  • It is made from renewable resources: Eco-friendly plastic wrap is made from renewable resources, such as crab shells and wood pulp. This means that it does not contribute to the depletion of fossil fuels.
  • It is biodegradable and compostable: Eco-friendly plastic wrap is biodegradable and compostable. This means it will not harm the environment when disposed of.
  • It does not release harmful toxins into the environment: Eco-friendly plastic wrap does not release harmful toxins into the environment as it decomposes. This means that it is safe for people and animals.

 

Challenges of Using Crab Shell BioPlastic Wrap:

There are a few challenges to using crab shell bioplastic wrap. These include:

  • It is still in its early stages of development: Eco-friendly plastic wrap is still in its early stages of development. This means that it is not yet as widely available as traditional plastic wrap.
  • It can be more expensive than traditional plastic wrap: Eco-friendly plastic wrap can be more expensive than traditional plastic wrap. This is because it is made from renewable resources and is biodegradable.

Overall, eco-friendly plastic wrap is a promising alternative to traditional plastic wrap. It is made from renewable resources, is biodegradable and compostable, and does not release harmful toxins into the environment. As the technology continues to develop, it is likely to become more widely available and to replace traditional plastic wrap in a number of applications.

 

 

 

 

Source  Happy Eco News

Using Light to Convert Lignin into Sustainable Plastic

Posted on by dishanth
Using Light to Convert Lignin into Sustainable Plastic

Its biochemical cousin cellulose, a byproduct of the paper and wood milling industry, is well known to many people. But, according to industry analysts, the same procedures generate 50 million tons of lignin each year. 98% of the inky liquid is burnt to create electricity once it has been distilled.

Researchers have been looking for more effective and sustainable methods to turn this naturally occurring polymer into a cleaner and greener building block for use in developing next-generation materials.

According to a new study published in the journal ACS Central Science, scientists at Boston College have created a method for turning lignin into eco-friendly plastics using light.

The scientists then transformed the oligomers into eco-friendly plastics by reacting with crosslinkers, a molecular glue, according to the study. The oligomers produced by the catalyst have distinct chemical structures, allowing the plastics produced in this way to be chemically broken down back into the oligomers and reformed from the oligomers and the crosslinker.

The research advances a viable strategy for the circular plastic economy, a system of waste-free polymer production and reuse, according to the study co-author Dunwei Wang, the Margaret A. and Thomas A. Vanderslice Chair in Chemistry at Boston College.

Wang and Niu, both interested in creating sustainable materials, chose the project based on Wang’s experience in utilizing photocatalysis to induce chemical transformations and Niu’s work of creating recyclable polymers.

Wang added, “The pleasant surprise was the level of controls we were able to exert in decomposing lignin, which is a biopolymer that is notorious for its difficulty to break down. Such a level of control paves the way for downstream applications.”

The study team wants to improve the novel technique for turning lignin into environmentally sustainable plastics that are easy to recycle chemically.

Graduate students Gavin Giardino and Hongyang Wang, along with former post-doctoral researchers Rong Chen and Cangjie Yang, are also co-authors of the study with Niu and Wang.

 

 

 

 

Source AZoMaterial