Water Pakistan

Capturing the humanitarian imagination

Source  http://www.humanitarianinnovation.org/projects/small-grants/knowledgepoint

Water, Sanitation, Hygiene and Health
Newsletter N° 149 / 1 February 2012

JMP thematic report 2011 published
The WHO/UNICEF Joint Monitoring Programme for Water Supply and Sanitation published its 2011 thematic report Drinking Water: Equity, safety and sustainability. Based on the 2008 datasets, the report investigates access to and use of drinking-water in greater detail than is possible in the regular JMP progress reports, and includes increased disaggregation of water service levels and analyses of trends across countries and regions.  Download from www.wssinfo.org

* * * *

HWTS News
The WHO/UNICEF/UNC International Network on Household Water Treatment and Safe Storage will organize a HWTS session at the 6^th World Water Forum on 14 March 14:30-16:30. The session will focus on the international target of having, by 2015, 30 additional countries with national policies regarding household water treatment and safe storage. Policy options will be linked to proven solutions, effective implementation and regulation. HTWS Network members attending the WWF6 are asked to contact Maggie Montgomery (montgomerym@who.int) who coordinates the HWTS target session.

* * * *

More HWTS News
HWTS Network members working closely with government counterparts are encouraged to assist their counterparts in completing the online HWTS survey available in English, French and Spanish. http://www.who.int/household_water/advocacy/en/

*-*-*-*Source

https://mail.google.com/mail/#inbox/1353812a97108c2e

Low cost and high speed nanotechnology water filter for developing world

Posted on 01. Sep, 2010 by Allen Smith in Technology

US researchers say they have developed a high-speed water filter that uses nanotechnology and comes at low. The new water filter they say could well be a perfect water-filteringsolution for the developing world.

Researchers at Stanford University have used plain cotton cloth dipped in a solution of silver nanowires as well as carbon nanotubes to make a filter that actually kills than filters the harmful micro organisms.

Most water filters filter or trap the microbes but the new filter which is a charged cloth(ions of silver and carbon) allows the micro organsims through, but they will not be virulent enough to cause health threat as the filter had killed them before letting them pass through with the water.

The electrical field that is present in the high-conduction nano-coated (silver and carbon) cotton generates as much as 20 volts of electric field that can kill all water-borne microbes. Under lab conditions, the filter had killed more than 98 percent of E. coli bacteria. The filter was made 2.5-inch thickness by taking several layers of fabric.

Yi Cui, Associate Professor, Materials Science and Engineering, Stanford University, says that the new treatment to make the water safe and potable can be used in remote places where people have no access to chlorine or other modes of water treatment. Yi says that the water filtering rate can also be increased by having large-sized pores.

Tags: 20 volts electricity, Buzz, cheap water filter, cloth dipped in solution of silver nano wires and carbon nanotubes kill all pathogens, cotton cloth water filter, doesnt trap but kills microorganisms,headlines, ions of silver and carbon, low cost nanotechnology filter, low cost water filter, material sciences, stanford university, top stories, Yi Cui

IN Pakistan we are using UV LAMPS for drinking water

treatment, thinking exposure to uv light kills bacteria, virus .

some who know a little more think that rather than killing it

stalls the further multiplication, so for so good. today i came across this

mutation effect that scares me to think . rather than making our wter safe we may be adding several types of mutated bacteria and virus to our system . these microorganisms are of unknown nature  may be more dangerous than the ones we are trying to get rid of and much more resistant to what  we know of controlling them.

‘Acquired (or somatic) mutations occur in the DNA of individual cells at some time during a person’s life. These changes can be caused by environmental factors such as ultraviolet radiation from the sun, or can occur if a mistake is made as DNA copies itself during cell division. Acquired mutations in somatic cells (cells other than sperm and egg cells) cannot be passed on to the next generation.’

hope microbiologists and molecular/ biological engineers can help me get rid of this negative thinking