Chementator
World’s first grid-connected iron-air battery now operational in the Netherlands
The Netherlands-based startup company Ore Energy (Amsterdam, the Netherlands; www.oreenergy.com) recently announced that it has successfully connected its flagship iron-air battery system to the electric grid in the city of Delft, the Netherlands. It is the first iron-air battery system…
This process can fully mineralize PFAS with no toxic byproducts
Breaking the stable carbon-fluorine bonds within per- and polyfluoroalkyl substances (PFAS) is one of the most significant challenges in mitigating persistent PFAS pollution. The Hydrothermal Alkaline Technology (HALT; diagram), invented at the Colorado School of Mines (Golden, Colo.; www.mines.edu) and…
New reactor supports organic-assisted electrolysis for green hydrogen
The production of “green” hydrogen via electrolysis is seen as a key decarbonization pathway for certain industry sectors, but its efficiency can be hampered by a number of factors, including the accumulation of gas bubbles on electrode surfaces within electrolyzers…
Switchable solvent supports freshwater extraction from hypersaline brine
Extremely high-salinity water streams present difficulties for many types of processing equipment, such as membranes and filters, and most commercial treatment methods involve thermal evaporators or crystallization, which are energy-intensive and require special anti-corrosion materials. A new membrane-less, non-evaporative process…
Carbon dioxide removal combined with desalination
Most existing carbon-dioxide removal (CDR) approaches have focused on air, but the volumetric concentration of dissolved inorganic CO2 in surface water is much higher (150X) than its concentration in the atmosphere. Removing CO2 from water could prove to be a…
Novel reactor addresses limitations of pyrolysis for plastics recycling
Pyrolysis has received much attention as a technology capable of breaking down waste plastics in recycling processes, but existing pyrolysis approaches often give rise to products with broad molar mass distributions and poor yields. Catalysts can improve yield and selectivity,…
Micro-hydropower systems produce renewable electricity inside pipelines
A first-of-its-kind energy-recovery system harnesses the energy of water flow and pressure in pipelines to produce renewable energy. The patented HydroXS unit, developed by InPipe Energy, Inc. (Portland, Ore.; www.inpipeenergy.com) in collaboration with Grundfos Corp. (Brookshire, Tex.; www.grundfos.com/us), is a…
A decarbonized electrolytic process for producing magnesium metal
Magnesium metal is a critical ingredient for aluminum alloys and it is widely used for desulfurization in steelmaking processes. Most magnesium metal is produced in China via high-energy-consumption processes. Now, technology company Magrathea (San Francisco, Calif.; www.magratheametals.com) has developed a…
Method for improving mechanical properties of carbon-fiber-reinforced composites
Carbon-fiber-reinforced polymer composites are attractive materials for applications requiring lightweight, strong components, such as aviation and automotive. However, their performance has been partially limited by the bonds between the polymer matrix and the embedded carbon fibers. Now, researchers at Oak…
Stable nanobubbles promote cleaner effluents from dairy processing
Wastewater from dairy processing facilities can be extremely challenging to treat — not only does the effluent usually contain high volumes of solids, minerals and organic matter, these loads can vary widely from hour to hour. A large cheese-processing facility…