In Austria, heat is 'recycled' from the sewer

Vast amounts of hot water from household appliances, businesses and factories gurgle down the drain every day, wasting not only H2O but also another precious resource: heat energy.

Geothermal heating system draws on limitless fuel: sewage

Among the many renewable energy sources - wind, solar, hydroelectric, biofuels - there is one to which we all contribute that has not yet managed to attract the romantic advocates who have embraced other forms of green energy.

Hardened steels for more efficient engines

Scientists of Karlsruhe Institute of Technology (KIT) are working on the development of a new process for hardening steel: With the help of methylamine, they enrich low-alloy steels with carbon and nitrogen. Low-pressure ...

Electric shock to petroleum coke generates sustainable graphene

Researchers at Texas A&M University and ExxonMobil are developing a method to reprocess petroleum coke—a byproduct of refining crude oil—into a sustainable, high-value alternative. Using a chemical process called electrochemical ...

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