The Grainger challenge is a scientific competition to find an economical way to
remove
Remove, removed or remover may refer to:
* Needle remover
* Polish remover
* Staple remover
* Remove (education)
* The degree of cousinship, i.e. "once removed" or "twice removed" - see Cousin chart
* Remove (C), function in the C programming lang ...
arsenic
Arsenic is a chemical element; it has Symbol (chemistry), symbol As and atomic number 33. It is a metalloid and one of the pnictogens, and therefore shares many properties with its group 15 neighbors phosphorus and antimony. Arsenic is not ...
from
arsenic-contaminated groundwater. This competition is being funded by the
United States National Academy of Engineering
The National Academy of Engineering (NAE) is an American nonprofit, non-governmental organization. It is part of the National Academies of Sciences, Engineering, and Medicine (NASEM), along with the National Academy of Sciences (NAS) and the ...
and the Grainger Foundation and is meant to help provide safe
drinking water
Drinking water or potable water is water that is safe for ingestion, either when drunk directly in liquid form or consumed indirectly through food preparation. It is often (but not always) supplied through taps, in which case it is also calle ...
to countries such as
Bangladesh
Bangladesh, officially the People's Republic of Bangladesh, is a country in South Asia. It is the List of countries and dependencies by population, eighth-most populous country in the world and among the List of countries and dependencies by ...
,
India
India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...
, and
Cambodia
Cambodia, officially the Kingdom of Cambodia, is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. It is bordered by Thailand to the northwest, Laos to the north, and Vietnam to the east, and has a coastline ...
.
In 2007, the winner of the Gold Award ($1,000,000) was
Abul Hussam
Abul Hussam () is the inventor of the Sono arsenic filter. He is a chemistry professor at George Mason University (GMU) in Fairfax, Virginia, and a member of advisory board at Shahjalal University of Science and Technology.
Life and career
H ...
, for his invention of the
Sono arsenic filter
The Sono arsenic filter was invented in 2006 by Abul Hussam, who is a chemistry professor at George Mason University (GMU) in Fairfax, Virginia. It was developed to deal with the problem of arsenic contamination of groundwater. The filter is now ...
. The Silver Award ($200,000) was awarded to
Arup K Sengupta for his invention and implementation o
ArsenXnphybrid anion exchange (HAIX) resin.
The Children's Safe Drinking Water Program at
Procter & Gamble
The Procter & Gamble Company (P&G) is an American multinational consumer goods corporation headquartered in Cincinnati, Ohio. It was founded in 1837 by William Procter and James Gamble. It specializes in a wide range of personal health/con ...
(P&G), Cincinnati, received the Bronze Award of US$100,000 for th
PUR™ Purifier of Watercoagulation and flocculation water treatment system.
References
External links
Grainger challenge page at the National Academy of EngineeringGrainger Foundation
Water treatment
Arsenic
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