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in April 2007 two NASA Kennedy Space

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Center employees were inducted into the

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space technology Hall of Fame for their

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award-winning work in developing a

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substance for cleaning up water and

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soils contaminated by chlorinated

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solvents the inductees dr. Jacqueline

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Quinn a NASA environmental engineer and

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Kathleen Brooks a NASA analytical

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chemist invented an emulsion called

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emulsified zero valent iron ore ezvi to

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eliminate ground pollutants for many

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years chlorinated solvents have been

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used to clean rocket engine parts and

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other equipment by the Department of

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Energy Department of Defense NASA and

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private industry facilities around the

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country at the time the solvents called

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dense non-aqueous phase liquids or diene

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apples for short were considered safe

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when the solvents were disposed of

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because they are heavier than water they

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sank into the ground later it was

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discovered the solvents could become

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harmful especially to the aquifer which

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is often a source of drinking water dean

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apples and groundwater were difficult to

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remove and the process was cumbersome

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and costly turning to nanotechnology for

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an answer Quinn and Brooks teamed with

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researchers at the University of Central

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Florida to conduct the first phase of

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research and development of ezvi the

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team developed a thick substance

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containing a mixture of iron particles

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water and vegetable oil the oil worked

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like a magnet helping to attract

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contaminants while the nanoparticles

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broke down the din apple into harmless

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components that could be consumed by

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microbes in the soil any vegetable oil

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left in the groundwater would be

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absorbed by naturally occurring bacteria

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in the surrounding soil depending on the

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size of the contaminated site it might

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take just a few weeks before the

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groundwater is completely clean

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but ezvi is one of only a few methods

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available to treat the DiNapoli their

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source and the product is safe for the

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environment the ezvi team was granted

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yet another patent for use on metal

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contamination making their innovative

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technology even more globally applicable

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the Hall of Fame honors those who

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transform technology originally

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developed to support space exploration

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initiatives into products that help

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improve the quality of life on earth

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anyone interested in more information

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should contact NASA Kennedy Space

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Center's innovative partnerships program