News tagged with sewage sludge
EPA sets pollution controls for boilers, incinerators
The Environmental Protection Agency on Wednesday said new pollution controls for boilers and incinerators will save thousands of lives every year but at half the cost of an earlier proposal that industry and lawmakers had ...
Feb 25, 2011 |
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Wastewater treatment lowers pathogen levels
A recent study by a team of researchers at the University of Arizona has tracked the incident of pathogens in biosolids over a 19 year period in one major U.S. city. In the same study, the researchers also analyzed pathogen ...
Jan 03, 2011 |
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Report suggests more rigorous assessment of nanosilver use
(PhysOrg.com) -- A new report published in the journal Science suggests the risks to the environment of nanosilver used in consumer goods should be examined more stringently.
Nanotechnology / Bio & Medicine
Nov 22, 2010 |
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Biodiesel from sewage sludge within pennies a gallon of being competitive
Existing technology can produce biodiesel fuel from municipal sewage sludge that is within a few cents a gallon of being competitive with conventional diesel refined from petroleum, according to an article ...
Technology / Energy & Green Tech
May 20, 2010 |
4.3 / 5 (6) |
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Groundwater Cleanup at Superfund Site
(PhysOrg.com) -- A chain of chemical reactions between organic waste and naturally occurring chromium appears to explain the long-standing elevated levels of the chemical chromium-6, a human carcinogen, in groundwater at ...
Feb 08, 2010 |
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Energy efficient sewage plants
High-rate digestion with microfiltration is state-of-the-art in large sewage plants. It effectively removes accumulated sludge and produces biogas to generate energy. A study now reveals that even small plants can benefit ...
Technology / Energy & Green Tech
Aug 13, 2009 |
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Cholesterol-busting bug with a taste for waste
A novel species of bacteria with cholesterol-busting properties has been discovered by scientists at the Universidad Complutense de Madrid, Spain. Dr Oliver Drzyzga and colleagues isolated the new bug, called Gordonia ch ...
May 14, 2009 |
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