Adsorptive Media for the Removal of Arsenic, Uranium, and Heavy Metals
Produced by Graver Technologies, MetSorb HMRG 16/60 is a unique titanium dioxide (TiO2) based granular adsorbent media used to remove arsenic III & V, uranium, and a wide variety of heavy metals including Lead, Cadmium, Copper, Chromium+6, Selenium, and Zinc from drinking water.
- Top-performing arsenic removal media - removes both trivalent and pentavalent arsenic
- Also removes uranium and a wide range of heavy metals
- Spent media meets requirements for non-hazardous landfill disposal
- Minimal backwash needed - reduces water waste
- Will not "dump" contaminants upon media exhaustion
- Chemical regeneration not required
- Low cost per gallon treated - long media life in most applications
- Less affected by competing ions than competitive technologies
- Made in the U.S.A.
MetSorb consistently ranks as as a top media choice for the treatment of arsenic in independet testing due to its higher adsorption capacity and lower level of ion interference than competitive iron-based and alumina-based media. MetSorb has extremely fast kinetics, allowing for contact times of only 1.5 to 3 minutes.
MetSorb can be used in a wide variety of water treatment settings from inline drinking water filters, cartridge filters, point-of entry residential and commercial filters, up to large-scale municipal water treatment plants and industrial/mine remediation systems.
MetSorb systems are normally operated in downflow configuration with a periodic but infrequent backwash to reduce the risk of channelling and to remove particulate trapped in the media bed. Pre-filtration for particulates is recommended to reduce the frequency of backwash needed. Treatment systems can be configured as single-tank systems or as multi-tank systems in parallel for higher flow rates or in series (lead-lag) flow for applications with high influent contaminant concentrations (generally recommended where the arsenic levels exceed 60 ppb). For challenging applications, an empty-bed contact time (EBCT) of 3 minutes is recommended.
MetSorb HMRG has been evaluated using the EPA TCLP (CFR 40-RCRA Regs.) and the California WET methods, and has been found to be non-hazardous and safe for landfill disposal when used for general arsenic and heavy metal removal. For uranium removal applications, MetSorb is capable of adsorbing enough uranium to reach hazardous waste thresholds in some jurisdictions. Graver Technologies can model a run cycle and provide throughput estimates so media can be replaced before this threshold is reached. Since each application differs, however, Graver Technologies and HomePlus Products recommend that exhausted MetSorb HMRG be evaluated following all federal, state, and local regulations regarding necessary approvals for landfill disposal.
As the contaminants removed by MetSorb are generally harmful, we strongly recommend ongoing water testing to monitor for contaminant breakthrough and to assess media life and schedule for media replacement.
Operating Conditions / Requirements:
| Service Flow Rate: | 8-10 GPM/ft2 |
|---|---|
| Flow Direction: | Downward Flow |
| Empty Bed Contact Time (EBCT): | 1.5-3 Minutes |
| Typical Pressure Drop: | <5 psi |
| Backwash Flow Rate: | 8-10 GPM/ft2 |
| Backwash Flow Volumes: | 5-7 Bed Volumes |
| Typical Freeboard: | 35-40% |
| Minimum Bed Depth: | 24 Inches |
| Recommended Bed Depth: | 30 Inches |
| Maximum Feed Temperature: | 150F |
| Maximum Recommended pH | 8.3 |
| Weight: | 40 lbs per ft3 |
| Service Flow Rate: | 8-10 GPM/ft2 |
|---|---|
| Flow Direction: | Downward Flow |
| Empty Bed Contact Time (EBCT): | 1.5-3 Minutes |
| Typical Pressure Drop: | <5 psi |
| Backwash Flow Rate: | 8-10 GPM/ft2 |
| Backwash Flow Volumes: | 5-7 Bed Volumes |
| Typical Freeboard: | 35-40% |
| Minimum Bed Depth: | 24 Inches |
| Recommended Bed Depth: | 30 Inches |
| Maximum Feed Temperature: | 150F |
| Maximum Recommended pH | 8.3 |
| Weight: | 40 lbs per ft3 |
Elevated levels of iron and manganese will reduce media life. It is recommended that iron and manganese be treated to reduce influent levels to 0.30 ppm (mg/l) and 0.05 ppm (mg/l), respectively prior to MetSorb. High free silica levels may impact media life in certain circumstances - please contact one of our certified water treatment technicians for assistance if your water supply has more than 30 ppm (mg/l) of free silica or more than 15 ppm (mg/l) of silicon. pH should be reduced to less than 8.3. If hydrogen sulfide (rotten egg odor) is present, please contact us for advice before applying MetSorb as additional pre-treatment will be required. Conversion of trivalent arsenic to pentavalanet arsenic prior to treatment with MetSorb is not required, however, it will enhance MetSorb performance. We recommend Filox media for the pre-treatment of iron, manganese and hydrogen sulfide, and to convert trivalanet arsenic to pentavalent arsenic.
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