Research Topic: waste recycling

Upcycling end-of-life mattresses into sustainable insulation materials through development of mycelium based biocomposites

Scientists developed an innovative way to recycle old mattresses by growing fungus on shredded mattress waste, creating a new insulation material. The resulting biocomposite is extremely heat-resistant, remaining stable even at temperatures above 990°C, and has insulation properties comparable to commercial products. This approach converts waste mattresses into valuable building materials while promoting environmental sustainability through circular economy principles.

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Supplementation in mushroom crops and its impact on yield and quality

Mushroom farmers can increase their harvest and improve mushroom quality by adding nutritional supplements to the growing medium. These supplements can be made from common agricultural waste products like grain bran and soybean meal, making them affordable and environmentally friendly. New research shows that beneficial bacteria and fungi might also boost mushroom production, offering sustainable alternatives to traditional chemical supplements.

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Spent Mushroom Substrate and Electric Arc Furnace Dust Recycling by Carbothermic Reduction Method

Scientists discovered that leftover material from mushroom farming can replace expensive coal-based chemicals used in recycling steel furnace waste. By heating this mushroom waste, they recovered valuable zinc while reducing carbon dioxide emissions by 23,000 tons per year. This innovative approach solves two environmental problems at once: it recycles agricultural waste that would otherwise be landfilled, and reduces emissions from industrial metal processing.

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Development of a consortium-based microbial agent beneficial to composting of distilled grain waste for Pleurotus ostreatus cultivation

Scientists developed a special mix of five beneficial bacteria found in grain waste composting to speed up the process of preparing grain waste as growing substrate for oyster mushrooms. This microbial treatment made the composting hotter and faster, allowing oyster mushroom roots to grow quicker on the substrate. While the final mushroom harvest was similar in quantity, using this microbial treatment allowed farmers to harvest mushrooms about a week earlier. This method offers a practical way to recycle grain waste into valuable mushroom crops.

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Sustainable Recycling of Mushroom Residue as an Effective Substitute for Cotton Hull Waste in Volvariella volvacea Cultivation: Evidence from Physicochemical and Microbiome Analyses

This research shows that mushroom waste left over from growing mushrooms can be successfully recycled as a growing medium for straw mushrooms, similar to the traditional cotton hull waste currently used. The recycled mushroom residue produces mushrooms of equivalent quality and quantity but costs much less to purchase. By analyzing the microscopic bacterial communities in the compost, scientists found that different bacteria help break down the organic matter in both types of substrates, supporting efficient mushroom growth.

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Combined effect of olive pruning residues and spent coffee grounds on Pleurotus ostreatus production, composition, and nutritional value

This study examined growing oyster mushrooms on different substrate mixtures combining wheat straw with recycled coffee grounds and olive plant waste. The researchers found that mushrooms grown on substrates with lower amounts of these waste materials produced comparable yields to standard straw while offering better nutritional profiles, including higher protein and lower fat content. The findings suggest that using these recycled agricultural wastes could benefit mushroom farming in regions where wheat straw is difficult to obtain, though lead contamination from coffee grounds was a concern requiring better cleaning procedures.

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