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.
Tabitha Simmons Leticia Perforated Leather Sandal,NEW Nike Air Jordan Mens 11.5 Westbrook 0.2 -Suede Black & Red shoes Sneakers,
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.
DANSKO Sandals Open Toe Ankle Strap Mary Jane Wedge sissy Size 38, US 7.5-8,New Nike Air Huarache Drift Size 13 Mens Running shoes AH7334 700 NWOB,Sandali Brunello Cucinelli women - Pelle (MZAUC1150),
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.
Sanuk Womens Flip-Flop- Pick SZ color.,Women's shoes KEYS 7 (EU 37) sandals bluee suede BS15-37,
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.
New Women's multicolor Platform Open Toe Wedge Heels shoes Ladies Sandals size,Mas Artisan Women's Vice Ankle Bootie,Aerosoles Women's Stop Short Toe Loop Sandal,
What sets this particular hydrogel apart, however, is its solar abilities.
Hermes H171129Z Sandale Night 70 Veau Boucle Palladiee Sorbet miel Leather 37.5,
This overall design and set of qualities means more evaporation with a much lower energy price tag.
PRADA MILANO1X109L RUNWAY Sandalen FLAMMEN Lackleder black Gr.36,5 NEU OVP,LFL by Lust for Life Women's L-raz Flat Sandal,
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, K. Jacques Women's Loki Sandals,Sandali Miu Miu women - Raso (5XP751RASOVITNEVADA),
AG855 DOCKSTEPS schuhe black leder strass damen sandalen EU 37,EU 38, 900 Christian Dior shoes jeweled high heel Croc Sandals Beige Size 36.5,
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.
Gianvito Rossi NIB pink gold Cracked Leather Crash Slingback Sandals SZ 38.5,Womens Sandals Croft & Barrow Size 9.5,
New with box: A brand-new, unused, and unworn item (including handmade items) in the original packaging (such as ... Read moreabout the condition
|Altezza tacco:||8.5 cm||MPN:|
|Paese di origine:||Italy||Materiale:||Pelle|
In terms of what’s coming next for the team, scalability tests are in the near future.
New “Madewell” Boardwalk Ankle Strap Sandal in British Saddle - Size 7,Crocs Women's Drew Barrymore Sloane Cross-Strap Slide - Navy White Size 10 - 6,BT623 MELLUSO shoes beige cuir verni femme sandales EU 35,EU 36,EU 36,5,EU,
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.
Jimmy Choo Lance 100 Patent Sandal,