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 MetSorb® HMRG is a highly effective granular adsorbent that removes arsenic III & V, and a wide variety of heavy metals including Lead, Cadmium, Copper, Chromium+6,Selenium, and Zinc from aqueous sources.

 

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  Heavy Metals and Arsenic Filter Media:

MetSorb HMRG media’s adsorptive capacity is 220 grams of arsenic per kilogram of HMRG adsorbent at a pH   level of 7. It yields 40,000 bed volumes of capacity at an inlet concentration of 40 parts per billion (ppb) of arsenic, at 1.6 minutes of empty bed contact time (EBCT), and a breakthrough of 10 ppb.

  • MetSorb® Features and Benefits:

    • Removes As (III) and As (V) 
    • High adsorbent capacity for arsenic and lead (>10 mg As per gram of METSORB)
    • Extremely Fast Kinetics: Empty Bed Contact Times (EBCT) between 1.5 – 3 minutes
    • Reduced equipment footprint
    • Simple installation and start-up
    • Reduced (in some cases eliminated) frequency of backwash
    • Nonhazardous disposal as solid waste–passes EPA TCLP (Toxicity Characteristic Leach Procedure)
    • No regeneration Chemicals Required
    • Removing Arsenic in millions of gallons of drinking water daily.
    • Proven technology with numerous references.

Process

Adsorption, the binding of molecules or particles to a surface, must be distinguished from absorption, the filling of pores in a solid. The binding to the surface is usually weak and reversible. Just about anything including the fluid that dissolves or suspends the material of interest is bound, but compounds with color and those that have taste or odour tend to bind strongly. Compounds that contain chromogenic groups (atomic arrangements that vibrate at frequencies in the visible spectrum) very often are strongly adsorbed on activated carbon. Decolourisation can be extremely efficient by adsorption and with negligible loss of other materials.

The most common industrial adsorbents are activated carbon, silica gel, and alumina, because they present enormous surface areas per unit weight. Activated carbon is produced by roasting organic material to decompose it to granules of carbon – coconut shell, wood, and bone are common sources. Silica gel is a matrix of hydrated silicon dioxide. Alumina is mined or precipitated aluminum oxide and hydroxide. Although activated carbon is a magnificent material for adsorption, its black color persists and adds a grey tinge if even trace amounts are left after treatment; however filter materials with fine pores remove carbon quite well.

 

 About  MetSorb® HMRG –  Heavy Metals and Arsenic Filter.

MetSorb® HMRG is a highly effective granular adsorbent that removes arsenic III & V, and a wide variety of heavy metals including Lead, Cadmium, Copper, Chromium+6,Selenium, and Zinc from aqueous sources. MetSorb adsorbent technology utilises a patented Titanium compound to adsorb both forms of arsenic as well as a wide range of contaminants in water. The increased surface area afforded by Titanium coupled with advanced pore volume provides excellent kinetics of adsorption. MetSorb® maintains a higher capacity and a lower level of ion interference than competitive iron and alumina based products.

  • Arsenic heavy metals  media is long-lasting and upon exhaustion, has consistently tested non-hazardous for disposal classification.
  • The media is NSF Standard 61 approved, and has received regulatory approval from agencies across the United States and Canada.
  • Results of AWWA Research Foundation Study “Adsorbent Treatment Technologies for Arsenic Removal”, 2005

MetSorb® Features and Benefits:

  • Removes As (III) and As (V) 
  • High adsorbent capacity for arsenic and lead (>10 mg As per gram of METSORB)
  • Extremely Fast Kinetics: Empty Bed Contact Times (EBCT) between 1.5 – 3 minutes
  • Reduced equipment footprint
  • Simple installation and start-up
  • Reduced (in some cases eliminated) frequency of backwash
  • Nonhazardous disposal as solid waste–passes EPA TCLP (Toxicity Characteristic Leach Procedure)
  • No regeneration Chemicals Required
  • Removing Arsenic in millions of gallons of drinking water daily.

Typical MetSorb Properties

Media Chemical Designation: Crystalline Titanium Oxide (TiO2) (Anatase)
Physical Form/Color: White Granular Solid
Moisture Content: < 7%
Particle Size:     -16 mesh /+ 60 mesh
Surface Area:     200–240 m2/gram
Bulk Density: 0.65 grams per cc (40 lbs / ft3)
Pore Volume:     0.34–0.44 cm3/gram
Avg. Pore Size: 64 - 84 Angstroms
Adsorption Capacity: 100 µg/L As (V) in NSF Ch

 Operational Design Parameters

Service Flow Rate: 8-10 gpm/ft2
Flow Direction:     Downward Flow
EBCT:    1.5-3 Minutes
Typical Pressure Drop:  < 5 psi
Backwash Flow Rate:  8-10 gpm/ft2
Backwash Volume:   5-7 Bed Volumes
Typical Freeboard:   35 - 40%
Minimum Bed Depth: 2 Feet
Maximum Feed Temperatue:  150°F

 

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