Navigation Links
From seawater to freshwater with a nanotechnology filter
Date:5/31/2011

In this month's Physics World, Jason Reese, Weir Professor of Thermodynamics and Fluid Mechanics at the University of Strathclyde, describes the role that carbon nanotubes (CNTs) could play in the desalination of water, providing a possible solution to the problem of the world's ever-growing population demanding more and more fresh drinking water.

Global population projections suggest that worldwide demand for water will increase by a third before 2030.

But with more than a billion people already experiencing drinking-water shortages, and with a potential 3𔃄 oC increase in temperature and subsequent redistribution of rainfall patterns, things are likely to get even worse.

CNTs essentially sheets of one-atom thick carbon rolled into cylinders have been investigated by Reese and his research group, using computer simulations, as a new way of addressing this challenge and transforming abundant seawater into pure, clean drinking water.

Their technique is based on the process of osmosis the natural movement of water from a region with low solute concentration across a permeable membrane to a region with high concentration. But just as with most existing water-desalination plants, Reese's technique actually uses the opposite process of "reverse osmosis" whereby water moves in the opposite direction, leaving the salty water clean.

One can imagine a large tank of water, separated into two sections by a permeable membrane, with one half containing fresh water and the other half containing seawater. The natural movement of water would move from the fresh water side to the seawater side to try and dilute the seawater and neutralize the concentrations.

But in reverse osmosis a large amount of pressure is applied to the seawater side of the tank, which reverses the process, making water move into the fresh-water side and leave the salt behind.

Although this process can remove the necessary salt and
'/>"/>

Contact: Michael Bishop
michael.bishop@iop.org
01-179-301-032
Institute of Physics
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Environmental Training Center Prepares Companies to Handle Nanotechnology Environmental and Human Safety Impacts
2. Limit to nanotechnology mass-production?
3. Study finds public relatively unconcerned about nanotechnology risks
4. IBMs MRSA Infection-Fighting Nanotechnology Caps Century of Healthcare Innovation
5. IBM and The Institute of Bioengineering and Nanotechnology Find Breakthrough for MRSA Treatment
6. Queens University professor uses nanotechnology to prolong machine and engine life
7. Reportlinker Adds Nanotechnology in Drug Delivery - Technological Improvements and Novel Approaches to Fulfill High Potential
8. Web of international collaboration boosts worldwide nanotechnology research
9. Worlds smallest battery created at CINT nanotechnology center
10. Scientists create highly ordered artificial spin ice using nanotechnology
11. Voluntary initiatives, regulation and nanotechnology oversight
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/17/2014)... , Sept. 17, 2014 The global consumption of ... 2019. Squalene is a natural skin-identical chemical that finds applications ... care, food supplements, pharmaceuticals, and in other applications like high ... market has a few major players and is regionally segregated. ... Special Liver Oil Co. Ltd. ( Japan ), ...
(Date:9/17/2014)... TRIANGLE PARK, N.C. , Sept. 17, 2014 /PRNewswire/ ... and presentation topics that will be featured at the ... Hamner Conference Center on December 3 and 4, 2014. ... managers are invited to hear the following: ... PhD UC San Diego Skaggs School of ...
(Date:9/17/2014)... (PRWEB) September 17, 2014 ... Two-Dimensional Liquid Chromatograph (2D-LC), which offers a ... sample matrices. The system provides a new ... analytes, which is beneficial to scientists analyzing ... and natural products. , Comprehensive 2D-LC combines ...
(Date:9/17/2014)... 2014 A biodegradable polymer can ... as bacteria, fungi, and algae into smaller units ... inorganic compounds, carbon dioxide, and humus in a ... and improved costs, biodegradable polymers are proving to ... to conventional polymers. Primary factors that are responsible ...
Breaking Biology Technology:Squalene Market by Source (Animal & Vegetable) & by End-user Industry (Cosmetics, Pharmaceuticals & Food Industry) - Global Trends & Forecasts to 2019 2Squalene Market by Source (Animal & Vegetable) & by End-user Industry (Cosmetics, Pharmaceuticals & Food Industry) - Global Trends & Forecasts to 2019 3In Silico Drug Discovery Conference Announces Speakers and Topics 2In Silico Drug Discovery Conference Announces Speakers and Topics 3In Silico Drug Discovery Conference Announces Speakers and Topics 4In Silico Drug Discovery Conference Announces Speakers and Topics 5In Silico Drug Discovery Conference Announces Speakers and Topics 6In Silico Drug Discovery Conference Announces Speakers and Topics 7Shimadzu’s New Nexera-e Two Dimensional Comprehensive Liquid Chromatograph Empowers Laboratories to Separate Even the Most Complex Mixtures 2Growing Demand for Eco-Friendly Products Drives the Global Biodegradable Polymers Market, According to New Report by Global Industry Analysts, Inc. 2Growing Demand for Eco-Friendly Products Drives the Global Biodegradable Polymers Market, According to New Report by Global Industry Analysts, Inc. 3
... DENVER, Nov. 8, 2011 Quest Diagnostics joined the ... participate in the American Cancer Society,s historic Cancer Prevention ... this national, longitudinal study is between November 8 and ... lifestyle, environmental and genetic factors that influence cancer risk ...
... VIENNA, November 8, 2011 Santo VC ... AFFiRiS AG   effective immediately and has also secured an ... same time, the German MIG fund increased its existing investment ... fund. As a result, AFFiRiS now has an additional EUR ...
... Biotech, Inc. (a suburban Philadelphia-based Company) announced today, at ... brand name of its flagship product to "RENADYL™." Formerly ... probiotic formulation helps maintain healthy kidney function. At a ... and health benefits of probiotics, Kibow has opted for ...
Cached Biology Technology:Quest Diagnostics Encourages Denver Area Residents to Enroll in Historic American Cancer Society Prevention Study November 8th - 19th 2Quest Diagnostics Encourages Denver Area Residents to Enroll in Historic American Cancer Society Prevention Study November 8th - 19th 3AFFiRiS AG: Capital Increase: AFFiRiS Brings Santo VC and MIG 11 on Board 2AFFiRiS AG: Capital Increase: AFFiRiS Brings Santo VC and MIG 11 on Board 3AFFiRiS AG: Capital Increase: AFFiRiS Brings Santo VC and MIG 11 on Board 4Kibow Changes Name of Flagship Kidney Function Support Product to 'RENADYL™' 2
(Date:9/16/2014)... on September 13, 2014. The fire is human-caused and ... 2,300 acres in size and is mostly being fueled ... calm Monday night due to higher humidity. Yesterday ... beginning to construct a fireline on the West and North ... on the fire: , 7 20-person Crews, 4 Hot Shot ...
(Date:9/16/2014)... of rock hit the Yukatan peninsula near the site of ... teratons of TNT. It left a crater more than 150 ... volcanism are widely accepted to have wiped out the dinosaurs ... what happened to the plants on which the dinosaurs fed? ... of Arizona reveals that the meteorite impact that spelled doom ...
(Date:9/16/2014)... votes for independence later this week, its Government could ... that fracking is necessary, research has revealed. , The ... public perception of shale gas extraction in the UK ... north of the border are the least supportive of ... in the University,s School of Geography, said: "The clear ...
Breaking Biology News(10 mins):Meteorite that doomed the dinosaurs helped the forests bloom 2Meteorite that doomed the dinosaurs helped the forests bloom 3Scottish people most sceptical on fracking, survey shows 2Scottish people most sceptical on fracking, survey shows 3
... in their own interests and do not cooperate ... severity of infection. The selfish behaviour ... treat antibiotic-resistant infections, according to research being presented ... today. Bacteria work together by using a ...
... TORONTO, ON - Widespread reports of a decline in the ... and speculation that pollination is also likely on the decline. ... long-term evidence of a downward trend in pollination, while also ... numbers may have declined at our research site, but we ...
... San Diego have discovered that a gene critical for programmed ... stem cells, a finding that could help to improve the ... chemotherapy or radiation therapy that kills cancer cells by inducing ... side effects for human cancer patients is the depletion of ...
Cached Biology News:Backstabbing bacteria: A new treatment for infection? 2Biologists find way to reduce stem cell loss during cancer treatment 2
... Cell Lines ,High Quality, Functionally-Validated, Ion Channel ... known for having a critical role in ... a key function in pain, CNS and ... have been investigated in therapeutic areas, such ...
... PrecisION Ion Channel Cell Lines ,High ... ,Ion channels are well known for having ... function and consequently have a key function ... that modulate ion channels have been investigated ...
... PrecisION Ion Channel Cell Lines ,High ... ,Ion channels are well known for having ... function and consequently have a key function ... that modulate ion channels have been investigated ...
Mouse polyclonal antibody raised against a partial recombinant CD320. NCBI Entrez Gene ID = 51293...
Biology Products: