Outdoor solar water purification using HNGs in natural sunlight. (Credit: Zhao, et al.)
Saline water—classified as having more than 1,000 ppm of dissolved salts—can be made into freshwater through desalination. The process is typically fueled by the sun, or by some other power source heating the water; after the heat energy turns the saline water into steam, one captures the steam, and then distills it back into water as it cools and condenses. On a small scale, such as that of an individual-sized still, it’s a simple, rain-inspired process, albeit a slow one.
NIKE AF1 LF1 DUCKBOOT '17 MENS 11.5 OLIVE GREEN NEW 916682-202,NWOB Nike Air Max 270 Flyknit Multi-color Men's Running shoes Sz 10 AO1023-501,
Distillation not only removes salt, but also other contaminants, so it’s been a traditional standby treatment process. The challenge to improve upon it is growing more urgent as the Earth’s population booms and freshwater resources dwindle thanks to pollution and drought. Salinity is a problem in at least 30 percent of the world’s irrigated regions, and remediation is very expensive, creating additional need for low-cost desalination.
Obviously, there are a number of weaknesses in the existing “state of the art” for desalination. The team took a systematic approach to dealing with each weakness in turn.
34 Nike Free Trainer V7 Week Zero USC Trojans SZ 13 shoes AA0881-600 Southern,Nike Air Max ZERO PREMIUM Size 9.5 881982 004 Grey Retro Running shoes 2017,Nike Zoom Mercurial XI Flyknit FK FC Black Seaweed US 10.5,
Therefore, to provide enough energy for the water evaporation step of the process, most industrial solar water purification systems utilize costly and complex optical concentrators (OCs). These focus sunlight to heat the water. However, such optical concentration leads to higher construction and maintenance costs.
Nike Air Jordan Flight Flex Trainer,Nike Men's Air Force 1 AF1 Ultra Flyknit Oreo Black White sz 11 [817420 004],
Schematic of highly efficient solar vapour generation based on tailored water transport in HNGs. (Credit: Zhao, et al.)
Hydrogels are known for their high water absorbency, because they both attract water and then trap it. This is an important part of the team’s new technology.
Men's Nike Zoom Train Action Training shoes, 852438 401 Size 8.5 Cobalt Bla,Nike Air Max 90 Essential Black White AJ1285-006,Nike Hyperdunk TB Basketball shoes Mens Size 12 orange and White NEW,
What sets this particular hydrogel apart, however, is its solar abilities.
Nike Internationalist Mid Royal - Black White Size 9 904337-001,
This overall design and set of qualities means more evaporation with a much lower energy price tag.
NEW GENUINE Nike Men's Size 8 AIR MAX 90 ULTRA BR Black Grey shoes 725222-001,Nike Lebron Zoom XI 11 Kings Pride,
In fact, according to Yu, the solar desalination process achieved in tests significantly reduced the salinity of seawater—by about 3 to 4 orders of magnitude.
In a press release, Men's Nike Epic React Flyknit White Racer bluee Pink Blast AQ0067-101 Size 9.5,Brand New Nike Men's Air Jordan 1 Mid High-Top Basketball 13 Sneaker Black,
Nike Men's SF Air Force 1 Mid Size 11 917753-800 orange White Basketball shoes,NEW Nike Free RN Running shoes (831508-002) - Men's Size 9,
Characterization of the HNGs. (Credit: Zhao, et al.)
This unique hydrogel is able to vaporize more water using less energy because its polymer network can break even the strong interactions among water molecules in liquid water. Another important innovation in this work is the ability to avoid reinventing the wheel despite this technological advance.
Nike Internationalist SE, Sz US 9.5, AJ2024-701, Vagas gold,,Nike Mens Air Zoom Odyssey 2 Running shoes Size 9 Squadron bluee 844545 400 New,
Pre-owned: An item that has been used or worn previously. See the seller’s listing for full details and ... Read moreabout the condition
|US Shoe Size (Men's):||10.5||Style:||Basketball Shoes|
Green Glow/Lt Crmsn-Arctc Grn
In terms of what’s coming next for the team, scalability tests are in the near future.
Nike shoes Men Sneakers White 95942 BDT OUTLET,Nike Air Huarache 'bluee force cool grey' suede,NIKE ZOOM FLY SIZE BLACK WHITE ,
Yu believes that ultimately these materials and the technology may be in use at an industrial scale, deployed by municipalities, after they’re first put to work in smaller devices used by individual households.
Nike Air Force 25 White Varsity Royal Chrome 2007 NIB Deadstock Size 17.5 bluee,