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Article: Corn-Based Heavy Metal Attractants
- Article from:
- Agricultural Research
- Article date:
- July 1, 1998
- Author:
CopyrightCOPYRIGHT 1998 U.S. Government Printing Office. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Heavy metals - lead, copper, zinc, and others - in wastewater are a weighty problem for U.S. industries. Stringent environmental regulations require treatment of wastewater to remove heavy metals and other contaminants before it can be discharged into public waterways. This is expensive and time consuming for companies, and it drives up the cost of consumer goods. To alleviate this problem, Robert E. Wing and David J. Sessa, a team of chemists at the U.S. Department of Agriculture's National Center for Agricultural Utilization Research at Peoria, Illinois, found a way to use corn derivatives to remove the heavy metals.
By chemically combining citric acid - a product ...
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