Cleaning up pollution, whey down deep.(ENVIRONMENT)(Brief article) From: Science News | Date: June 17, 2006 | COPYRIGHT 2006 Science Service, Inc. 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) Copyright information

Lab and field tests hint that dairy whey, a lactose-rich by-product of the dairy industry, could be used to clean up underground water supplies tainted with the solvent trichloroethylene (TCE), an industrial degreaser.

Consuming TCE or inhaling its fumes can cause liver and kidney damage, affect heart function, and possibly cause cancer (SN: 5/29/99, p. 343). The chemical is in groundwater at more than half of the Environmental Protection Agency's Superfund sites.

To treat the tainted groundwater, engineers often pump hydrogen-yielding substances such as sodium lactate ...

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