The "Antifreeze Bittering Act of 2009" (H.R. 615) was introduced to the U.S.
House of Representatives on January 21, 2009, and it mandates the
addition of 30-50 mg/L denatonium benzoate (DB), a bittering agent, to
antifreeze and engine coolant. At 1-10 mg/L, denatonium benzoate's
bitter taste can be detected; and water with 30-100 mg/L denatonium
benzoate is unpalatable. This project addressed concerns related to the
potential release of DB to water supplies by determining if activated
carbon treatment, a common method employed to remove taste and
odor contaminants from water, is suitable for DB removal.
The "Antifreeze Bittering Act of 2009" (H.R. 615) was introduced to the U.S.House of Representatives on January 21, 2009, and it mandates theaddition of 30-50 mg/L denatonium benzoate (DB), a bittering agent, toantifreeze and engine coolant. At 1-10 mg/L, denatonium benzoate'sbitter taste can be detected; and water with 30-100 mg/L denatoniumbenzoate is unpalatable. This project addressed concerns related to thepotential release of DB to water supplies by determining if activatedcarbon treatment, a common method employed to remove taste andodor contaminants from water, is suitable for DB removal.
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