Green hydrogen from direct seawater electrolysis- experts warn against hype

No need for new development

30-Jul-2024 - At first glance, the plan sounds compelling: invent and develop future electrolysers capable of producing hydrogen directly from unpurified seawater. But a closer look reveals that such direct seawater electrolysers would require years of high-end research. And what is more: DSE electrolyzers are ...

The future of desalination?

A fast, efficient, selective membrane for purifying saltwater

16-May-2022 - Water scarcity is a growing problem around the world. Desalination of seawater is an established method to produce drinkable water but comes with huge energy costs. For the first time, researchers use fluorine-based nanostructures to successfully filter salt from water. Compared to current ...

Making seawater drinkable in minutes

A new alternative seawater desalination membrane to produce drinking water

30-Jun-2021 - According to the World Health Organization, about 785 million people around the world lack a clean source of drinking water. Despite the vast amount of water on Earth, most of it is seawater and freshwater accounts for only about 2.5% of the total. One of the ways to provide clean drinking water ...

Better Understanding Membranes

A new class of membranes promises highly interesting applications in material separation, whether in biotechnology or water purification

28-May-2021 - The theoretical understanding of these polymer membranes is, however, still incomplete. Two researchers from Helmholtz-Zentrum Hereon and the University of Göttingen now present a study, published in the renowned science journal Chemical Reviews, that identifies these gaps in knowledge and shows ...

A carbon neutral solution for desalination?

Maybe so by tapping into geothermal

07-Nov-2018 - Water shortages are hitting some areas of the world hard, and with increasing global temperatures, more regions may be experiencing drought conditions. Countries such as Saudi Arabia rely on desalination plants to provide drinking water to their residents, producing 5 million cubic meters of ...

Boring down on boron

14-Jun-2018 - High-temperature desalination technologies can efficiently reduce the concentrations of a chemical element in seawater to make it an effective substitute for fresh water. Research that has investigated how the element boron evaporates could help produce higher-quality drinking and irrigation ...

Taming 'wild' electrons in graphene

24-Oct-2017 - Graphene - a one-atom-thick layer of the stuff in pencils - is a better conductor than copper and is very promising for electronic devices, but with one catch: Electrons that move through it can't be stopped. Until now, that is. Scientists at Rutgers University-New Brunswick have learned how to ...

Reducing power plants' freshwater consumption with new silica filters

20-Oct-2017 - Power plants draw more freshwater than any other consumer in the United States, accounting for more than 50 percent of the nation's freshwater use at about 500 billion gallons daily. To help save this water, researchers at Sandia National Laboratories have developed a new silica filter for power ...

Freshwater from salt water using only solar energy

21-Jun-2017 - A federally funded research effort to revolutionize water treatment has yielded an off-grid technology that uses energy from sunlight alone to turn salt water into fresh drinking water. The desalination system, which uses a combination of membrane distillation technology and light-harvesting ...

Squeezing every drop of fresh water from waste brine

31-May-2017 - Engineers at the University of California, Riverside have developed a new way to recover almost 100 percent of the water from highly concentrated salt solutions. The system will alleviate water shortages in arid regions and reduce concerns surrounding high salinity brine disposal, such as ...