Metsorb® HMRP0 pages

Filtration | Separation | Purification
MetSorb™ HMRP 50 Micron
Effective, High Value Adsorbent for Reduction of Heavy Metals
MetSorb HMRP adsorbent is a free-flowing powder
designed for incorporation into pressed or extruded
carbon blocks. The addition of Graver’s MetSorb HMRP at
relatively low levels to a carbon block design is
very effective for the reduction of lead, and at higher HMRP
usage levels effective for reduction of arsenic, to meet the
requirements of NSF Standard 42. MetSorb HMRP utilizes
a patented material to adsorb not only cationic lead
species, but also both forms of Arsenic: Arsenic III and
Arsenic V, present as (neutral) arsenite and (anionic)
arsenate respectively. MetSorb HMRP will also reduce a
wide range of other metal contaminants commonly present
in drinking water or process water, and is effective in
polishing low levels of metal contaminants from industrial
waste streams.
Recommended MetSorb HMRP Use
As a fine powder, the addition of MetSorb HMRP is
recommended as a component of pressed or extruded
carbon blocks, where heavy metal reduction is desired. In
blending HMRP with carbon and poly binder components,
one must assure that both the starting mechanical blend
and the unfinished block produced appear homogeneous.
The following guidance is provided as a starting point. The
performance of each specific design should be evaluated
as to reduction for the specific contaminant in question
using industry -standard methodologies by
qualified laboratories.
Design Parameters for Improved
Performance
A nominal 10 - inch carbon block, standard for most countertop and undercounter applications will provide more overall
volume and more functional media than the 2 to 2 1/2 inch
blocks typically used in end - of - tap (EOT) applications. For
example, a nominal 10 - inch carbon block can easily
perform for 1000 gallons or more of contaminant reduction,
while the smaller EOT blocks are rated at several hundred
gallons.
The larger block design also gives longer contact times
(EBCT or Empty Bed Contact Time) for better contaminant
reduction. For example, a nominal 10 - inch block will
provide an EBCT of 10 -15 seconds, while a typical 2 1/2
inch EOT block gives only 3 seconds EBCT.
Devices designed for slower flow rates, e.g., 0.5 gpm
(gallons per minute) versus 1.0 gpm will provide longer
contact times and better percentage contaminant reduction.
Use of higher concentrations of MetSorb HMRP will also
improve heavy metal reduction efficiencies. Uniform
dispersion of MetSorb HMRP in the carbon matrix is
important for maximum performance.
MetSorb HMRP is thermally stable and nonorganic. It
will not change characteristics, vent off-gases or odors or
lose performance when used at typical carbon block
processing temperatures. MetSorb HMRP would remain
thermally stable when processed under these manufacturing
cycle times or in general kept below 575°F (300°C.).
MetSorb HMRP Adsorbent Specifications
MetSorb HMRP Powder
Appearance
White powder
Moisture Content
<10%
Average Particle Size < 50 microns
Other
Easily dispersed in carbon-poly binder matrix
Bulk Density
0.30 grams per cc
Bulk Density
20 pounds/cubic foot