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Washington University in St. Louis News & Information > University Groups > School of Engineering & Applied Science >
Center for Air Pollution Impact and Trend Analysis
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Kind of a drag
Engineer devises ways to improve gas mileage
March 16,
2009 --
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| Agarwal |
A mechanical engineer at Washington University in St. Louis is developing techniques that will lessen our monetary pain at the pump by reducing the drag of vehicles — planes, autos and trucks. Drag is an aerodynamic force that is the result of resistance a body encounters when it moves in a liquid or gaseous medium (such as air). Reduction in drag means less fuel would be required to overcome the fluid resistance encountered by the moving vehicle. Working with undergraduate and graduate students, Ramesh K. Agarwal, Ph.D, the William Palm Professor of Engineering at WUSTL, has successfully demonstrated that the drag of airplane wings and cars/trucks can be reduced by employing the active flow control technology.
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Cleans up nice
Washington University, two industries, team to clean up mercury emissions
Jan. 14,
2008 --
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| Pratim Biswas, Ph.D., chair of WUSTL's energy, environmental and chemical engineering department, heads a project involving Washington University, Chrysler LLC and Ameren Corporation to test a mercury removal process in a full-scale power plant. |
Washington University in St. Louis is partnering with Chrysler LLC and a major Midwest utility company in a project to determine if paint solid residues from automobile manufacturing can reduce emissions of mercury from electric power plants. The project is based upon the technical expertise of Pratim Biswas, Ph.D., Stifel & Quinette Jens Professor of Environmental Engineering Science who has demonstrated the effectiveness of titanium dioxide in controlling mercury in lab and recent field studies. He heads the project that will test a mercury removal process in a full-scale power plant.
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Breaking up is easy to do
Cell splits water via sunlight to produce hydrogen, cheap source of energy
May 1,
2007 --
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| David Kilper/WUSTL Photo |
| Pratim Biswas and his group have developed a method to make a variety of oxide semiconductors that, when put into water promote chemical reactions that split water into hydrogen and oxygen. |
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Engineers at Washington University in St. Louis have developed a unique photocatalytic cell that splits water to produce hydrogen and oxygen in water using sunlight and the power of a nanostructured catalyst. The group is developing novel methodologies for synthesis of nanostructured films with superior opto-electronic properties.
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A world of promise
Chemist explores ways to make hydrogen a viable fuel
Nov. 2,
2005 --
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| Storing hydrogen is problematic. A WUSTL chemist and his colleagues are exploring different approaches to help make hydrogen fuel more practical. |
A chemist at Washington University in St. Louis hopes to find the right stuff to put the element hydrogen in a sticky situation. Lev Gelb is exploring several different ways to store hydrogen and prepares theoretical models of molecules that could enable storage and transport of hydrogen gas. One process would involve materials that hydrogen would stick to.
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Some like it hot
Environmental engineer identifies troublesome bioaerosol
April 7,
2005 --
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| A WUSTL researcher has identified a bacterium as the pathogen living on bubbles in hot water environments. |
A team of researchers, led by an environmental engineer at Washington University in St. Louis, has applied a molecular approach to identify the biological particles in aerosol responsible for making employees of a Colorado hospital therapeutic pool ill. They found: when the bubble bursts, the bacteria disperse, and lifeguards get pneumonia-like symptoms.
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Money down the drain?
Tap water just as safe as bottled, says environmental engineer
Aug. 5,
2004 --
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| David Kilper / WUSTL Photo |
| Bottled water or tap? A WUSTL environmental engineer specializing in aquatic chemistry sees no difference between the two in terms of health. |
Paying extra for bottled water? You may be wasting your money, says an expert in aquatic chemistry. Daniel Giammar, Ph.D., a faculty member in the Environmental Engineering Science Program at Washington University in St. Louis, says that tap water is just as safe to drink as bottled water. He also says that the pricey bottled water you value so highly might well be nothing more than repackaged tap water. "The tap water we drink meets very strict standards that are designed to protect our health," Giammar says. "These are developed over many years of study and they all include fairly large factors of safety. Any differences between tap and bottled water, in terms of health, are negligible."
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Oxidizing hazardous particles
Device traps, deactivates airborne bioagents
March 3,
2004 --
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| Anthrax is nasty stuff. An environmental engineer at WUSTL uses smart catalysts in his device that can detect the presence of airborne anthrax and disable it. |
An environmental engineer at Washington University in St. Louis with his doctoral student has patented a device for trapping and deactivating microbial particles. The work is promising in the war on terrorism for deactivating airborne bioagents and bioweapons such as the smallpox virus, anthrax and ricin, and also in routine indoor air ventilation applications such as in buildings and aircraft cabins.
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The beat of a different drum
Honoring time, computer greats consider evading time
March 3,
2004 --
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| To meet design and cost changes, industry and government are considering clockless computing. |
Computing royalty, including Ivan Sutherland, the father of computer graphics, and Wesley A. Clark, the designer of the world's first personal computer, will gather at a computing symposium Friday, March 26th, 2004, from 1:00-5:30 p.m. at Washington University in St. Louis's Whitaker Hall Auditorium. As part of the University's 150th anniversary of its founding, participants will honor time by contemplating how computing can evade time as the industry prepares to go clockless.
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Colloquium on childhood lead poisoning leads off environmental series
Continuing the strong start in the fall, the spring Environmental Initiative colloquia explore the role research universities can play in addressing environmental concerns.
Jan. 28,
2004 -- Continuing Washington University's yearlong Sesquicentennial Environmental Initiative, the final set of colloquia will cover significant issues such as tackling childhood lead poisoning, building a sustainable environment in plant sciences, understanding the effect of aerosols in our air; creating ecological and economically viable structures; and understanding how research universities can impact environmental education and public policy.
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Smoke in Iraq
An air pollution expert at Washington University in St. Louis says the air pollution created by the Iraqi war is regional and should remain that way
April 10,
2003 --
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| This NASA image shows the smoke from Iraq's oil fires set early in the confrontation. |
An air pollution expert at Washington University in St. Louis says the air pollution created by the Iraqi war is regional and should remain that way unless something catastrophic happens such as the torching of the Kuwaiti oil wells in the 1991 Gulf War.
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