News tagged with filters
Houseplants cut indoor ozone
Sep 08, 2009 |
4.8 / 5 (6) |
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Ozone, the main component of air pollution, or smog, is a highly reactive, colorless gas formed when oxygen reacts with other chemicals. Although ozone pollution is most often associated with outdoor air, ...
Fitting squares into circles
Jun 25, 2009 |
5 / 5 (1) |
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Particle filters are standard in the basic fittings for cars. Construction machines, city buses and garbage trucks must now follow suit. This can be achieved effectively and inexpensively thanks to a new material ...
First 'nanorust' field test slated in Mexico
Nanotechnology / Bio & Medicine
May 27, 2009 |
5 / 5 (3) |
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Rice University researchers today announced that the first field tests of "nanorust," the university's revolutionary, low-cost technology for removing arsenic from drinking water, will begin later this year ...
Membrane filters are key to future of public water supply, scientists say
Apr 21, 2009 |
4.4 / 5 (5) |
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As municipalities across the United States reduce their dependence on groundwater sources to mitigate environmental impacts like subsidence and flooding, there is a growing need for better purification processes to keep contaminants ...
Study: Spammers scourge to inbox and environment
Apr 15, 2009 |
not rated yet |
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(AP) -- There are plenty of reasons to hate spammers. Add this to the list: They're environmentally unfriendly.
Engineer helps poor in developing nations purify drinking water
Mar 16, 2009 |
4 / 5 (4) |
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The device looks deceptively simple - a porous clay pot placed in a five-gallon plastic bucket with a spigot - but Vinka Craver believes it can save millions of lives each year.
Biological sand filters, a practical approach to combat poverty and inequality
Biology /
Sep 24, 2008 |
4.3 / 5 (6) |
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Microbiologically contaminated water plagues approximately 1.1 billion people in rural and peri-urban populations in developing countries. Roughly 2.2 million people without safe access to drinking water die each year from ...
