Method and reagent system for treating mercury-contaminated material

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United States of America Patent

PATENT NO 10926308
APP PUB NO 20190091740A1
SERIAL NO

16140102

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method of treating mercury-contaminated material to obtain a treated product having reduced mercury leachability includes the steps of (a) admixing the mercury-contaminated material with a reagent system comprising calcium sulfide (CaS) and trisodium phosphate (TNaP), wherein the calcium sulfide and trisodium phosphate are preferably provided at a CaS:TNaP ratio of from 2:1 to 1:2, on a dry weight reagent basis, and the reagent system is preferably provided in an amount equal to 0.4% to 5% by weight of the contaminated material; and (b) adding water as needed to achieve a moisture content of at least 5% by weight of the contaminated material.

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Patent Owner(s)

Patent OwnerAddress
HMR SOLUTIONS INCBROOKLYN NY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yost, Karl William Anacortes, US 12 15

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