* Billions of gallons of water are used each day in the United States for energy production
* huge amounts of energy are consumed in pumping, treating, heating, and delivering water.
* More than 12 percent of the energy used in the U.S. is for water production
* water is a substantial limiter on energy production
One of the top priorities for innovation is desalination. Reverse osmosis has been the state-of-the-art in water desalination for half a century. While it’s used in thousands of desalination plants around the world, the process is costly and highly energy intensive, without a lot of room left for improvement.
Berkeley Lab researchers are working on a number of approaches to efficiently separate salt from water, whether it’s seawater or brackish water, ranging from understanding the fundamental properties of water at the nanoscale to advanced technologies for water treatment. For example, Dan Miller is leading investigation of a membrane that can yield a higher rate of desalination while also being resistant to fouling, a major obstacle in cost-effective desalination.
And Chinmayee Subban is developing a technology that uses electrochemistry to treat brackish water, which is about one-third as saline as seawater and is prevalent in the United States and other parts of the world, largely as naturally occurring groundwater or through coastal intrusion. Water treated with this technology could be ideal for use in agricultural irrigation.
Another project already underway is groundwater banking, a way to basically save rainwater for a sunny day. In collaboration with the Almond Board of California, Berkeley Lab researcher Peter Nico is testing how best to do groundwater aquifer recharge, combining ground-based and airborne techniques to get geophysical images of the subsurface.
Brian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per month. His blog Nextbigfuture.com is ranked #1 Science News Blog. It covers many disruptive technology and trends including Space, Robotics, Artificial Intelligence, Medicine, Anti-aging Biotechnology, and Nanotechnology.
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