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Metsorb® Arsenic & Lead Removal Media
Product Information
Heavy Metal Removal Powder
Comparison to Competitors
Disposal of Exhausted Metsorb®

Download HMRG Datasheet

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


Arsenic III
Arsenic V

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)


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

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.

© Graver Technologies, 2008.

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