PARC: Purifying water through movement
November 22, 2010 | Length: 00:02:09
Meng Lean, a principal scientist at the Palo Alto Research Center, is developing a new method to purify waste water. Using the flowing motion of water and centrifugal force, a portable device uses the method, hydrodynamic separation, to split up waste particles, eliminating the need for a filtration barrier.
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RE: PARC: Purifying water through movement
Presently we have 375 customers, but could go to a max of 800.
Could you send me any information about this technology to the
whetstonewaterdistrict@powerc.net. Very respectively, Arnold Miller
RE: PARC: Purifying water through movement
Transcript
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>> Meng Lean: My name is Meng Lean. I'm the Principle Scientist and project leader for the PARC's Clean Water Effort.
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>> Meng Lean: I'm hoping that the invention that we have created will have a significant impact on the way that we do water purification in the future. It's called hydro dynamic separation. The concept here is to be able to use a very simple idea where we understand the way that water moves and based on thge water motion we can actually separate out particles and in that aspect, totally eliminate the requirement of the use of a filter. Today we will demonstrate how we can take a very highly concentrated wastewater and run it through our spiral separator and produce a concentrated waste stream and a clean affluent stream. The way it works is that we have to understand the motion of water, how it flows, so to be able to use the way the water moves down the co-channel, it generates a centrifugal force. You only use a centrifugal force generator to create a very precise flow pattern of the water. And it's that flow pattern that sweeps the suspended particles and move them to a position where there's a force minimum. This device has many, many applications. I really believe that it is really well positioned for supplying water to small communities. So 85 percent of water communities in the United States support a few thousand people. So this would be ideal. In terms of drinking water, I think it's highly regulated, but there are other areas, for example, desalination, where the urgency to create potable water is just emerging. And I think that's an area which is much more open to novel and new solutions.
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