What can the forests of Scandinavia possibly offer to migrants in faraway refugee camps? Clean water may be one thing.
A bacteria-trapping material developed from wood by researchers at KTH Royal Institute of Technology is now being tested for use as a water purification filter. The aim is to use it in places where there is no infrastructure or clean water supply.
The material, which combines wood cellulose with a positively-charged polymer, can trap bacteria by attracting and binding the bacteria to the material surface. It shows promise for bandages, plasters and packaging that kill bacteria without releasing toxins into the environment.
Led by Professor, the researchers at KTH are investigating whether the material can enable portable on-site water treatment where no facilities or wells exist to meet demand.
“Our aim is that we can provide the filter for a portable system that doesn’t need electricity – just gravity – to run raw water through it,” says, a PhD student at KTH’s School of Chemical Science and Engineering. “The great idea is that we are trapping the bacteria and removing them from the water by our positively-charged filter. The bacteria trapping material does not leach any toxic chemicals into the water, as many other on-site purification methods do.”
Her co-supervisor,, has been working with for about a decade. “We had this fantastic material that is antibacterial and can be used in different ways, and we wanted to see how to use it in a way that truly makes a difference – a way that addresses a big problem in the world,” Illergård says.
Illergård says the fibres are dipped in a positively-charged polymer solution that makes the surface becomes positively charged. Bacteria and viruses are negatively charged and therefore stick to the positively-charged polymer surface. From there, they cannot free themselves and reproduce, and as a result they die.
“One of the advantages of surfaces covered with polymers is that bacteria will not develop any resistance,” she says.
After it is used, the filter can be burned.
Receive an email update when we add a new WATER PURIFICATION article.
The Latest on: Water purification
via Google News
The Latest on: Water purification
- June date for Burla water treatment planton March 22, 2020 at 11:21 pm
SAMBALPUR: The 6 MLD treatment plant, which will solve the drinking water crisis of Burla, is likely to be completed by June this year.Assistant Engineer of PHEO, Burla Sukhamaya Sarkar said civil ...
- Electrified nanocarbon cleanses polluted water of toxic heavy metalson March 22, 2020 at 9:50 pm
The presence of toxic metals in water stemming from industrial sources makes treatment a tall order, with these polluted liquids capable of contaminating groundwater supplies for years or even decades ...
- Proven Aircraft Interior Purification System Adapted For Ground Useon March 22, 2020 at 9:04 pm
Aviation Clean Air (ACA) and International Aero Engineering have partnered to offer the ACA Ionization Purification System as a portable Ion Distribution Unit ... The electronically created positive ...
- Covid-19 not detected in drinking water, says Qeeri scientiston March 22, 2020 at 5:00 pm
Dr Deema al-Masri at work at Qeeri. An expert at Qatar Environment and Energy Research Institute (Qeeri), part of Hamad Bin Khalifa University, noted that the novel Coronavirus (Covid-19) has not been ...
- Global Ballast Water Treatment Systems Market, Forecast to 2027: Size, Share, Growth, Trends, Opportunitieson March 20, 2020 at 5:08 pm
The "Ballast Water Treatment Systems Market and Physical Treatment - Global Industry Analysis, Size, Share, Growth, Trends, and Forecast, 2019-2027" report has been added to ResearchAndMarkets.com's ...
- Unbelievable filter can turn soda into pure wateron March 20, 2020 at 5:01 pm
Aqua Tru gives ‘soda water’ a whole new meaning Click here to get your own: https://amzn.to/3aaGyJC Our team is dedicated to finding and telling you more about the products and deals we love. If you ...
- Water Treatment Equipment Market Size 2020, Market Benefits, Forthcoming Developments, Business Opportunities & Future Investments 2024on March 20, 2020 at 3:37 am
The Global “Water Treatment Equipment“Market Report 2020report supplies thorough estimation to improvement a complete information of the global Water Treatment Equipment market today and its ...
- Water treatment plant contamination solved, supply expected to resume as normal, says Selangor repon March 17, 2020 at 8:57 am
KUALA LUMPUR, March 17 — Those living in certain parts of Kuala Lumpur and Selangor who were previously informed of a possible water cut can now breathe easy after Bukit Gasing assemblyman Rajiv ...
- BioLargo Reveals Scaled Up Commercial Design for AOS Water Treatment Technologyon March 17, 2020 at 7:25 am
Westminster, CA, March 17, 2020 -- via NEWMEDIAWIRE -- BioLargo, Inc. (OTCQB:BLGO), developer of sustainable technologies and a full-service environmental engineering company,.
via Bing News