Metsorb® HMRG (Heavy Metal Removal Granules)
Highly Effective, Low-Cost Adsorbent for Reduction of Arsenic III & V and a Wide Variety of Heavy Metals
MetSorb® HMRG and HMRP adsorbents utilize a patented material to adsorb both forms of arsenic as well as a wide range of contaminants in water. Empty bed contact times as low as 10 seconds achieve high removal efficiencies. The material affords a higher capacity and a lower level of ion interference than competitive iron and alumina based products.
MetSorb® HMRG media’s adsorptive capacity is 7-12 grams of arsenic per kilogram of HMRG adsorbent in drinking water applications with a pH range of 6.5-8.5. Much higher adsorptive capacities have been measured, up to 400 g/kg, in industrial treatment applications.
Adsorbent Product Features/Benefits
- Removal of heavy metals to meet drinking water standards
- High adsorbent capacity requiring less frequent replacement
- Fast kinetics to work effectively at high flow rates
- Nonhazardous disposal as solid waste
Contaminants
- Arsenic III
- Arsenic V
- Cadmium
- Copper
- Antimony
- Lead
- Mercury
- Uranium
- Zinc
- Selenium
Applications
- Commercial and industrial treatment units for drinking water or contaminated water
- Municipal water treatment
- Carbon blocks
- Cartridges for pitchers
- Faucet mounted and counter top devices
- Household point of entry treatment units
| MetSorb® HMRG Adsorbent Specifications | |
|---|---|
| HMRG Granular | |
| Appearance | White granules |
| Moisture Content | <10% |
| Bulk Density | 0.65 grams per cc (40 lb/ft3) milliliter |
| Other | Free flowing |
| Particle Size | -16+ 60 U.S. mesh (other sizes available) |
Comparison of HMRG adsorbent with
iron-based adsorbent.
Treatment capacity as a function of tank size.
Testing was done under the conditions specified by the NSF Standard 53 for Arsenic. Results at a pH of 6.5 and a pH of 8.5 are shown in the graph above.
Lead removal by MetSorb® HMRG adsorbent in column test; 30 seconds EBCT.
Adsorption isotherms for lead between pH 5 and 7 are nearly identical.
The above graph shows the adsorption isotherm for Arsenic V at pH 8.5.