ATTN RAPTOR!
12-15-2004 | 12:06 PM
#1
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ATTN RAPTOR!
A researcher has discovered an effective way to remove a troubling new pollutant from our nation's water sources.
Pratim Biswas, The Stifel and Quinette Jens Professor of Environmental Engineering Science and director of the Environmental Engineering Science Program at Washington University in St. Louis, has found a method for removing the toxin MTBE from water. MTBE (methyl tertiary butyl ether) has been detected at low levels in municipal water sources around the nation and in several cases has made its way into citizens' tap water.
Biswas discovered that a nanostructured form of a compound called titanium dioxide causes MTBE to react with dissolved oxygen so that it yields the harmless gas carbon dioxide.
Pratim Biswas, The Stifel and Quinette Jens Professor of Environmental Engineering Science and director of the Environmental Engineering Science Program at Washington University in St. Louis, has found a method for removing the toxin MTBE from water. MTBE (methyl tertiary butyl ether) has been detected at low levels in municipal water sources around the nation and in several cases has made its way into citizens' tap water.
Biswas discovered that a nanostructured form of a compound called titanium dioxide causes MTBE to react with dissolved oxygen so that it yields the harmless gas carbon dioxide.
12-15-2004 | 01:45 PM
#2
Joined: Jul 2001
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From: La Crescenta, CA
Thanks, Josh, I'll look into this. It sounds like a possibly effective air sparging technique. My concerns are (1) the possible health risks of titanium dioxide nanoparticles, (2) feasibility of scaling up from bench scale to an in-situ remediation system, and (3) acquiring air emission permits for carbon dioxide.
12-15-2004 | 03:57 PM
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From: Oxfordshire
Originally Posted by The Raptor,Dec 15 2004, 09:45 PM
Thanks, Josh, I'll look into this. It sounds like a possibly effective air sparging technique. My concerns are (1) the possible health risks of titanium dioxide nanoparticles, (2) feasibility of scaling up from bench scale to an in-situ remediation system, and (3) acquiring air emission permits for carbon dioxide.
Great minds think alike.....
12-15-2004 | 04:44 PM
#6
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From: La Crescenta, CA
Rich-
How would you approach vapor extraction testing for calculation of radius of influence and flow rates for 2" vapor extraction well placement for eventual in-situ site remediation of perchloroethylene and other (breakdown compound) chlorinated (halogenated) hydrocarbon volatile organic compounds in subsurface soil?
How would you approach vapor extraction testing for calculation of radius of influence and flow rates for 2" vapor extraction well placement for eventual in-situ site remediation of perchloroethylene and other (breakdown compound) chlorinated (halogenated) hydrocarbon volatile organic compounds in subsurface soil?
12-15-2004 | 04:57 PM
#7
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From: FCUK
Originally Posted by The Raptor,Dec 16 2004, 08:44 AM
Rich-
How would you approach vapor extraction testing for calculation of radius of influence and flow rates for 2" vapor extraction well placement for eventual in-situ site remediation of perchloroethylene and other (breakdown compound) chlorinated (halogenated) hydrocarbon volatile organic compounds in subsurface soil?
How would you approach vapor extraction testing for calculation of radius of influence and flow rates for 2" vapor extraction well placement for eventual in-situ site remediation of perchloroethylene and other (breakdown compound) chlorinated (halogenated) hydrocarbon volatile organic compounds in subsurface soil?
What should we do? 
