WT-140 is a heavy-metal precipitant ideally suited for treatment of a nickel-bearing waste, especially if heavily chelated. It contains sodium dimethyldithiocarbamate at a 40% concentration. It is not effective for metal reduction purposes and does not work well in treatment of lead or chromium.
Sulfide-based for batch, flow through and Microfiltration systems. WT-007 is a Polysulfide based material used to precipitate heavy metals. WT-007 normally does not require an additional coagulant, if sludge recycling is utilized in a flow-through precipitation application. An additional benefit is its ability to break down through contact with air, ensuring no residual sulfide in the effluent.