Navigation Links
Cleaner water through nanotechnology

Tiny particles of pure silica coated with an active material could be used to remove toxic chemicals, bacteria, viruses, and other hazardous materials from water much more effectively and at lower cost than conventional water purification methods, according to researchers writing in the current issue of the International Journal of Nanotechnology.

Peter Majewski and Chiu Ping Chan of the Ian Wark Research Institute, at the University of South Australia, explain that the availability of drinking quality water is fast becoming a major socio-economic issue across the globe, especially in the developing world. However, water purification technology is often complicated, requires sophisticated equipment and is expensive to run and maintain. Moreover, it usually requires a final costly disinfection stage. The Australian team suggests that nanotechnology could provide a simple answer to the problem.

The researchers have investigated how silica particles can be coated easily with a nanometer-thin layer of active material based on a hydrocarbon with a silicon-containing anchor. The coating is formed through a chemical self-assembly process so involves nothing more than stirring the ingredients to make the active particles.

These active particles, so called Surface Engineered Silica (SES), were then tested to demonstrate that they could remove biological molecules, pathogens such as viruses like the Polio virus, bacteria like Escherichia coli, and Cryptosporidium parvum, which is a waterborne parasite.

"The results clearly show that organic species can efficiently be removed at pH ranges of drinking water by stirring the coated particles in the contaminated water for up to one hour and filtering the powder," the researchers say. They point out that the filtration process occurs through an electrostatic attraction between the pathogens and the surface engineered particles.

The recent report entitled 'Water for People - Water for Life' of the World Water Assessment Program of the UNESCO says that more than 6000 people die every day due to water-related diseases, including diarrhea, worm infections, and infectious diseases. In addition, organic pollutants from industrial waste water from pulp and paper mills, textiles and leather factories, steel foundries, and petrochemicals refineries, are a major cause of illness in parts of the world where regulations do not necessarily protect people from such industrial outflows.

The team's nanotech approach to water purification could help prevent disease and poisoning for potentially millions of people.


Contact: Albert Ang
Inderscience Publishers

Related medicine news :

1. DentaBurst(TM) Freshening Teeth Cleaners Launches Outshine Everyone Video Contest
2. Kimberly-Clark Launches DentaBurst(TM) Freshening Teeth Cleaners
3. Cleaner Air Leads to Healthier Lungs
4. Fact Sheet Explains Cleaners, Disinfectants
5. City Cleaners Win 16% Wage Hike and Fully Employer-Paid Family Health Care
6. Home Spray Cleaners Could Raise Asthma Risk
7. Even occasional use of spray cleaners may cause asthma in adults
8. Green Seal Ramps Up Environmental Standard for Household Cleaners
9. Fish devastated by sex-changing chemicals in municipal wastewater
10. New Water Purification Product from Reliance Products and Procter & Gamble now Available in Retail Stores
11. Vanderbilt University Medical Center and Waters Collaborate on Tissue Imaging Research Using SYNAPT HDMS
Post Your Comments:
(Date:11/25/2015)... ... ... On November 23rd 2015 Cozy Products, a division of Bird-X Incorporated, ... explains what this means for business moving forward. , The Tri Lite heater business ... to sell personal heaters that reduce energy consumption, are economical and keep people warm ...
(Date:11/25/2015)... ... November 25, 2015 , ... ... of music, friendships, and learning in its 65th Anniversary Brillianteen Revue, scheduled for ... , For 65 years, Brillianteen has been a treasured tradition for ...
(Date:11/25/2015)... ... 25, 2015 , ... Castlewood Treatment Center for Eating Disorders, ... as a result of the $20,000 raised at the center’s recent golf ... Club in Eureka, will help individuals who otherwise might not seek treatment for ...
(Date:11/25/2015)... ... ... An unlikely combination of recycled plastic shopping bags in ... to have a more dignified and comfortable night’s sleep. , Residents of Friendship ... bags into sleeping mats for the homeless. The project, according to Jeannette ...
(Date:11/25/2015)... ... November 25, 2015 , ... Students and parents have something ... winners of the Create Real Impact awards. California Casualty is proud to ... the tide of distracted and reckless driving, the number one killer of young drivers. ...
Breaking Medicine News(10 mins):
(Date:11/24/2015)... COMMACK , Nueva York ... Avery Biomedical Devices (ABD), fabricante del Avery Breathing ... Anders Jonzon , MD; Ph.D. como consultor ...   --> Foto - ... --> El doctor Jonzon es un ...
(Date:11/24/2015)... 2015 Sectra (STO: SECT B) ... into a multi-year agreement to deploy Breast Imaging ... provide the Breast Center a future-proof platform capable of ... SECT B) announces that Breast Center of Acadiana ... Breast Imaging PACS in its two freestanding imaging centers. This ...
(Date:11/24/2015)... and BERN, Switzerland , November 24, ... Center for Biomedical Engineering Research of the University of ... of Endocrinology, Diabetes and Clinical Nutrition of the Bern ... of an exclusive collaboration to develop a novel generation ... the personalised delivery of insulin for diabetic patients with ...
Breaking Medicine Technology: