![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
. | ![]() |
. |
![]() by Brooks Hays Washington DC (UPI) Jul 1, 2021
The creators of a new instant water disinfectant, made using only hydrogen and the surrounding air, claim their invention is "millions of times more effective" at ridding water of viruses and bacteria than commercial purification methods. In addition to revolutionizing municipal water cleaning, the inventors of the novel technique suggest their disinfectant can help safely and cheaply deliver potable water to communities in need. Around the world, an estimated 780 million people are without reliable access to clean water, and millions more experience water scarcity at least once a month. The technique -- described Thursday in the journal Nature Catalyst -- uses a catalyst of gold and palladium to instantly turn hydrogen and oxygen into hydrogen peroxide, a common disinfectant. Every year, millions of tons of hydrogen peroxide are synthesized in factories. The disinfectant is then shipped and stored until it's ready to be used. To keep it shelf stable and prevent degradation, other chemicals are added. Unfortunately, some of those additives limit commercial hydrogen peroxide's disinfecting abilities. Commercial water purification systems sometimes supplement hydrogen peroxide with chlorine, but in large quantities, chlorine can react with naturally occurring compounds in water to produce toxins harmful to humans. The new disinfectant, which can be made and used on site, eliminates the safety issues associated with commercial hydrogen peroxide and chlorine purification methods. In lab tests, researchers found their catalyst yielded not only hydrogen peroxide, but a variety highly reactive compounds called reactive oxygen species, or ROS. It turned out that these novel compounds were responsible for the majority of the new disinfectant's impressive antibacterial and antiviral abilities. "The significantly enhanced bactericidal and virucidal activities achieved when reacting hydrogen and oxygen using our catalyst, rather than using commercial hydrogen peroxide or chlorination shows the potential for revolutionizing water disinfection technologies around the world," study co-author Graham Hutchings said in a press release. "We now have proven one-step process where, besides the catalyst, inputs of contaminated water and electricity are the only requirements to attain disinfection," said Hutchings, a professor of chemistry at the Cardiff Catalysis Institute. When compared to commercially produced hydrogen peroxide, scientists found their instant disinfectant was 10 million times more potent against viruses and bacteria. The disinfectant not only surprisingly effective, but also exceptionally efficient, the researchers said. "Crucially, this process presents the opportunity to rapidly disinfect water over timescales in which conventional methods are ineffective, whilst also preventing the formation of hazardous compounds and biofilms, which can help bacteria and viruses to thrive," Hutchings said.
![]() ![]() Assembly of satellite to track world's water shifts from US to france Pasadena CA (JPL) Jul 01, 2021 Set for launch next year, the Surface Water and Ocean Topography mission will help scientists monitor Earth's ocean, as well as the amount of fresh water in its lakes and rivers. The Surface Water and Ocean Topography (SWOT) mission took a big step toward launch this week when a team at NASA's Jet Propulsion Laboratory in Southern California shipped the scientific heart of the satellite to France. A U.S. Air Force C-17 airplane carrying the hardware - which includes finely tuned research instrumen ... read more
![]() |
|
The content herein, unless otherwise known to be public domain, are Copyright 1995-2024 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. General Data Protection Regulation (GDPR) Statement Our advertisers use various cookies and the like to deliver the best ad banner available at one time. All network advertising suppliers have GDPR policies (Legitimate Interest) that conform with EU regulations for data collection. By using our websites you consent to cookie based advertising. If you do not agree with this then you must stop using the websites from May 25, 2018. Privacy Statement. Additional information can be found here at About Us. |