waste management – Page 2

Microbial Consortium–Mediated Degradation of Polyethylene Terephthalate in Orthodontic Aligners: A Comprehensive Review

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This review examines how microorganisms can break down plastic used in clear orthodontic aligners (PET plastic). Clear aligners are popular because they are invisible and comfortable, but patients need new ones every 1-2 weeks, creating significant plastic waste. Scientists have discovered bacteria and fungi that produce special enzymes capable of degrading this plastic into harmless components, offering a sustainable alternative to traditional disposal methods like landfilling and incineration.

Turning the Cocopith Waste into Myceliated Biocomposite to Make an Insulator

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Researchers developed an environmentally-friendly insulation material by growing mushroom mycelium (Ganoderma lucidum) on cocopith, a waste product from coconut fiber processing. The resulting biocomposite has thermal insulation properties comparable to commercial insulators like Styrofoam and polyurethane, but is completely biodegradable and made from agricultural waste. This innovation addresses waste management problems while creating a sustainable material for thermal insulation in buildings, food processing, and industrial equipment.

Treatment of Cigarette Butts: Biodegradation of Cellulose Acetate by Rot Fungi and Bacteria

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Cigarette butts are a major global pollution problem because they contain cellulose acetate that doesn’t break down naturally. This study tested whether specific fungi and bacteria could eat away at cigarette filters. After one month of treatment, the bacteria B. cereus and fungi like P. ostreatus and L. lepideus successfully degraded about 24-34% of the cigarette material, suggesting these microorganisms could be used to help dispose of cigarette waste.

The application of laccase-rich extract of spent mushroom substrates for removing lignin from jute fabric waste: a dual management approach

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This research shows how leftover mushroom growing material (SMS) can be recycled into a useful enzyme called laccase to make jute fabric softer and lighter by removing tough lignin components. Instead of using harsh chemicals, the scientists used mild conditions and natural enzymes to process jute waste sustainably. From just one bag of mushroom waste, they could treat an area of fabric equivalent to 2000 square meters, making this an economically attractive solution for both mushroom and textile waste management.

Production of β-Glucans by Pleurotus ostreatus: Cultivation and Genetic Background

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Oyster mushrooms (Pleurotus ostreatus) are increasingly popular edible fungi that can grow on various waste materials like agricultural byproducts and food waste, making them both economical and environmentally friendly. These mushrooms produce valuable health-promoting compounds called β-glucans that have immune-boosting and antioxidant properties. Modern scientific techniques, including genetic analysis and artificial intelligence, are being used to optimize cultivation methods and increase production of these beneficial compounds. This sustainable approach to mushroom farming helps reduce waste while providing nutritious and medicinal food products.

Diversity of Culturable Fungi in Two-Phase Olive Mill Waste, a Preliminary Evaluation of Their Enzymatic Potential, and Two New Trichoderma Species

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Scientists discovered 31 different fungal species living in olive mill waste, including two previously unknown species. These fungi have the ability to break down tough plant materials and remove harmful dyes from waste, making them useful for cleaning up environmental pollution. This research suggests these fungi could be used to transform olive oil production waste into useful products, supporting a circular economy.

The removal of black ink via Emericella quadrilineata as a green alternative technique to recycling ink waste papers

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Researchers discovered that a fungus called Aspergillus quadrilineatus can effectively remove black ink from waste paper, offering an eco-friendly alternative to harmful chemical deinking methods. Under optimal conditions, the fungus removed 97% of ink in just 6 days by absorbing it onto its surface and breaking it down with special enzymes. This biological approach could help reduce environmental pollution from paper recycling while making the process more cost-effective and sustainable.

Impact of bottom ash addition on Pleurotus ostreatus cultivation on coffee ground substrate

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This study investigated growing oyster mushrooms on a mixture of used coffee grounds and coal plant bottom ash. The researchers found that adding small amounts of bottom ash (1-5%) slowed mushroom growth slightly but actually reduced harmful heavy metals in the final mushrooms compared to using only coffee grounds. The leftover substrate after mushroom harvest could be used as a fertilizer for poor soils, creating a complete recycling system that turns industrial and food waste into useful products.

Research Topic: waste management