Calcium Polysulfide has been in use for more than a century, but mainly for agricultural applications. Today, it is routinely used for the remediation of heavy metals.
REMOTOX®, a 29% Calcium Polysulfide Solution, is a non-toxic reagent that oxidizes under aerobic conditions to form calcium, sulfate and elemental sulfur.
REMOTOX® is considered to be an ideal reducing agent for soil and groundwater remediation, due to its effective ability to precipitate highly soluble metals as less soluble, less toxic metal sulfides. Hexavalent Chromium is reduced to Trivalent levels, which then precipitates as hydroxide.
REMOTOX® removes chromates and dichromates without prior reduction of the chromium to its trivalent state. Electrolyse nickel and other metals in process wastewater can be effectively treated. It can break and precipitate chelated and/or complexed metals, typically without pretreatment.
REMOTOX® has proven effective in removing lead, copper, thallium, cadmium, nickel, zinc, iron, silver and other metals commonly found in power plant waste and scrubber wastewater. It has additionally proven effective in capturing heavy metals emitted in flue gas from various ignition processes.
