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UNIST team develops novel hydrogen production process using biomass oxidation instead of water oxidation as electron source

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Conventionally, water is considered a cheap and clean source of electrons; 2H 2 O ? Briefly, PMA can be readily reduced at room temperature upon oxidation of abundant biomass wastes, such as lignin and chopped particles of giant miscanthus, acacia, rice straw and larch. —Professor Jungki Ryu, corresponding author.

Water 371
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Russian researchers develop wasteless joint processing of electric furnace and ladle slag to produce pig iron and clinker

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Scientists of Ural Federal University and the Institute of Metallurgy of the Ural Branch of RAS (Russian Academy of Sciences) have developed and successfully tested the technology of joint non-waste processing of electric furnace and ladle slag to obtain pig iron and Portland cement clinker. —Oleg Sheshukov, lead author. Background.

Portland 186
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Oleophobic hydrophobic magnetic sponge selectively soaks up oil, sparing water and wildlife

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And sorbents are not only expensive, but they generate a huge amount of physical waste—similar to the diaper landfill issue. The OHM (oleophobic hydrophobic magnetic) nanocomposite slurry can be used to coat any cheap, commercially available sponge. Skimmers don’t work in rough waters or with thin layers of oil.

Water 243
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Wireless Heater Made From a Leaf Skeleton Is Fully Biodegradable

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We’ve gotten very, very good at making things that are cheap and durable. Among them: Our society generates massive amounts of waste that is going to remain in landfills for a long time. Gallo, Andreea Danielescu, and Eric Paulos, was presented at CHI 2022. Unfortunately, there are some deleterious side effects.

Waste 71
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Lund researchers develop optimized two-phase enzymatic process for production of biodiesel

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Further, these systems are inefficient when a high free fatty acid (FFA) content is present in the starting material, thus restricting the use of conventional chemical pathways to a highly pure feedstock. The results, the authors suggested in their paper, constitute a good starting point for efficient and cheap biodiesel production.

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QUB spin-out to commercialize to technique for production of MOFs; storage for natural gas vehicles

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By simply grinding together two cheap precursors in a basic milling machine, the MOF material is produced in a matter of minutes, in a powder form, ready for applications without further treatment, and without generating solvent waste. —Prof. NGV applications.

Gas 218
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Cheap Sensors for Smarter Farmers

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With the new, cheap sensors, farmers will be able to collect data on their farms without worrying about the variability. One problem with mass-producing sensors, however, is that it creates a lot of waste. That's why Whiting and his colleagues decided on using biodegradable materials, ­­such as zinc and wood. So, it's quite reliable."

Cheap 145