Metalsorbents are metal precipitating agents for water and wastewater applications in municipality and industrial operations. Metalsorbents are a range of sulfur based chemical precipitants (anionic) that readily bond with metals in their dissociated forms (cationic), forming an insoluble compound that readily precipitates, and is subsequently removed from the treated stream through settling or filtering. In order to decrease production of potentially toxic gases, sulfur is chemically bonded to an organic molecule, forming dithiocarbamate. Various grades are available corresponding to various organic substrates. Metalsorbents are efficient in removing a wide array of complex or chelated metals, including copper, zinc, chromate, silver, cadmium, lead, mercury, cobalt, and nickel.
PRINCIPLE USES OF METALSORBS
- Precipitation of chelated or complex metals (e.g., copper) bearing effluent from
electroplating or metal finishing manufacturers. - Precipitation of heavily chelated, electro-less nickel from soluble nickel effluent.
- Highly efficient precipitation of zinc that is rapid settling.
- Precipitation and recovery of cadmium at a ratio of 3.5:1.
- Economical metal recovery of silver, even at very low concentrations.
- Complete precipitation of chromate, even hexavalent.
- Effectively precipitates lead at nearly a 1:1 ratio.
- High precipitation of mercury leaving very little to discharge.
BENEFITS & ADVANTAGE
- Precipitates complex and chelated metals
- Higher metal recovery
- Applicable over a pH range of 3 to 10
- Improves sludge density
- Enhanced flocculant stability
- Excellent use economy
