Olin Corporation

Jeffery D Casteel

Ronald L Dotson

Sanders H Moore

James F Pickering

Carey O Burger

Phillip J Reed

Richard E Mellor

A process for the removal of mercury from industrial waste streams is disclosed wherein the waste stream is a nitrate based solution that has been decomposed by the addition of hypochlorite. The method involves adding a reducing agent to reduce the hypochlorite and/or adjusting the pH by the use of a strong acid to less than about 2.0, converting any residual chlorine to a soluble unreactive salt, adding a soluble precipitating agent, such as sodium sulfide, to the solution in a ratio to the mercury present of greater than 1:1 to about 2:1 to precipitate out the mercury as a mercury compound. The solution is then filtered to remove the precipitated mercury compound.

Growing community of inventors

Englewood, TN, United States of America

Jeffery D Casteel