- India beat Bangladesh by four wickets to win Nidahas T20 Tri-Series
- Piyush Goyal junks report suggesting airline-like dynamic pricing in railway
- Bypoll defeats no referendum on BJP policies, programmes: Yogi
- NDA messed up economy, mismanaged JK: Manmohan Singh
- Putin eyes fourth term as Russians go to polls
- 3 AIIMS doctors enroute to Agra killed in accident on Yamuna e-way
- Five civilians killed in Pakistan firing on LoC
Novel way to clean drinking water a hope for India
In hope for countries like India where clean drinking water is a big issue, a team of researchers including an Indian-origin engineer has found a way to use graphene oxide sheets to transform dirty water into drinking water which could be a global game-changer.
"We hope that for countries where there is ample sunlight such as India, you'll be able to take some dirty water, evaporate it using our material, and collect fresh water," said Srikanth Singamaneni from Washington University in St. Louis.
The novel approach combines bacteria-produced cellulose and graphene oxide to form a bi-layered biofoam.
"The process is extremely simple," Singamaneni said. "The beauty is that the nanoscale cellulose fiber network produced by bacteria has excellent ability move the water from the bulk to the evaporative surface while minimizing the heat coming down, and the entire thing is produced in one shot," he added.
"The design of the material is novel here," the Indian-origin researcher added.
"You have a bi-layered structure with light-absorbing graphene oxide filled nanocellulose at the top and pristine nanocellulose at the bottom. When you suspend this entire thing on water, the water is actually able to reach the top surface where evaporation happens," he explained.
Light radiates on top of it, and it converts into heat because of the graphene oxide -- but the heat dissipation to the bulk water underneath is minimised by the pristine nanocellulose layer.
"You don't want to waste the heat; you want to confine the heat to the top layer where the evaporation is actually happening," Singamaneni said.
The cellulose at the bottom of the bi-layered biofoam acts as a sponge, drawing water up to the graphene oxide where rapid evaporation occurs.
The resulting fresh water can easily be collected from the top of the sheet.
- UK-US firms create largest genomics project to study Indian population 18 Mar 2018 | PTI
- Indian-American gives USD 5 mn to US-based varsity 18 Mar 2018 | PTI
- India, US two-plus-two meeting postponed 18 Mar 2018 | PTI
- 'Trump admin looking to work with India on Rohingya issue' 17 Mar 2018 | PTI
- Ghanaian think tank condemns deportation of Indian businessman 17 Mar 2018 | IANS
- India biggest strategic opportunity for US: Pentagon 16 Mar 2018 | PTI
- Indian-origin former McKinsey partner in US gets 2-year jail in fraud case 16 Mar 2018 | PTI
- Can't expect India to go cold turkey on Russian arms: Pentagon 16 Mar 2018 | PTI
- India committed to strengthening ties with Nepal: Prez Kovind 15 Mar 2018 | PTI
- Choose France, Macron tells India's youths and entrepreneurs 15 Mar 2018 | PTI
Sunday EditionView All
18 Mar 2018 | PNS
AAI conducts international workshop for utilizing GAGAN In keeping with the Prime Minister’s objective of using technology as a means of development and co-operation, Airports Authority of India has now offered GPS-aided Geo Augmented Navigation (GAGAN) to SAARC and Southeast Asian countries in order to allow them to reap the significant benefits that accrue from such an advanced navigation system. AAI conducted a two-day workshop on March 15 and 16, 2018...
STATE EDITIONSView All
18 Mar 2018 | PNS | Chandigarh
Haryana Chief Minister Manohar Lal on Saturday said that the previous governments indulged in the business of illegally acquiring lands with ulterior motives and with the intent of having their own cut. “This was done not only in Rohtak but in the entire state...