Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > News > Nanotech and 'tea bag' to clean up drinking water

January 3rd, 2011

Nanotech and 'tea bag' to clean up drinking water

Abstract:
Lack of access to clean water is still a problem for millions of people across the world, but new developments in nanotechnology and a water filter that resembles a humble tea bag could prove to be effective solutions.

The "teabag" filter is the brain-child of Professor Cloete of Stellenbosch University.

It is designed to fit in the neck of a standard sized water bottle, meaning it is interchangeable, and, depending on the quality of water being filtered, costs between one and five cents per liter.

"The outside of the bag is coated in a polymer that includes a biocide, which means that it both filters water and kills bacteria -- we haven't yet come across a bacteria it can't kill.

"While the inside -- the tea, if you like -- is made of activated carbon, which can remove chemical pollutants.

The "teabag" isn't the only interesting filtration tech on the horizon, and researchers in California are developing a filter that uses nanotech and silver to produce clean water.

It works using a mesh made from a combination of tiny carbon cylinders -- known as nanotubes -- and silver wire. Silver is known to kill bacteria, but the addition of an electric current makes the process even more effective, killing up to 98% of bacteria.

Source:
cnn.com

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Atomic imperfections move quantum communication network closer to reality June 25th, 2017

Research accelerates quest for quicker, longer-lasting electronics: UC Riverside-led research makes topological insulators magnetic well above room temperatures June 25th, 2017

U.S. Air Force Research Lab Taps IBM to Build Brain-Inspired AI Supercomputing System: Equal to 64 million neurons, new neurosynaptic supercomputing system will power complex AI tasks at unprecedented speed and energy efficiency June 23rd, 2017

Rice U. chemists create 3-D printed graphene foam June 22nd, 2017

Products

STMicroelectronics Peps Up Booming Social-Fitness Scene with Smart Motion Sensors for Better Accuracy, Longer Battery Life, and Faster Time to Market January 2nd, 2017

Cutting-edge nanotechnologies are breaking into industries November 18th, 2016

STMicroelectronics’ Semiconductor Chips Contribute to Connected Toothbrush from Oral-B That Sees What You Don’t: Microcontroller and Accelerometer help brushers clean their teeth more effectively October 4th, 2016

Particle Works launches range of high quality magnetic nanoparticles August 31st, 2016

Academic/Education

Oxford Instruments congratulates Lancaster University for inaugurating the IsoLab, built for studying quantum systems June 20th, 2017

The 2017 Winners for Generation Nano June 8th, 2017

MIT Energy Initiative awards 10 seed fund grants for early-stage energy research May 4th, 2017

Bar-Ilan University to set up quantum research center May 1st, 2017

Announcements

Atomic imperfections move quantum communication network closer to reality June 25th, 2017

Research accelerates quest for quicker, longer-lasting electronics: UC Riverside-led research makes topological insulators magnetic well above room temperatures June 25th, 2017

U.S. Air Force Research Lab Taps IBM to Build Brain-Inspired AI Supercomputing System: Equal to 64 million neurons, new neurosynaptic supercomputing system will power complex AI tasks at unprecedented speed and energy efficiency June 23rd, 2017

Rice U. chemists create 3-D printed graphene foam June 22nd, 2017

Water

Smart materials used in ultrasound behave similar to water, Penn chemists report June 16th, 2017

Plasmonics could bring sustainable society, desalination tech June 2nd, 2017

Using light to propel water : With new method, MIT engineers can control and separate fluids on a surface using only visible light April 25th, 2017

Graphene holds up under high pressure: Used in filtration membranes, ultrathin material could help make desalination more productive April 24th, 2017

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project