DIRM 412

Iron Removal Resin Media

DOSHION DIRM 412 is resin media for effectively removal of dissolved iron from ground water. DOSHION DIRM412 is an insoluble resin media which enhances the oxidation of dissolved iron and converts the soluble iron(Fe++) into insoluble Ferric (Fe++) which produces ferric hydroxide and can be filtered through resin media.DOSHION DIRM-412 effectively removes the iron present as a ferrous iron, however colloidal iron, soluble organic iron and bacterial iron are also removed comparatively to a lesser extent. Regeneration of resin media can be done by simple back washing with raw water .

The Advantages of DOSHION DIR-412 :
• It is an insoluble resin media simply acting as an iron filter .
• Granular shape & Particle size is to suit flow dynamics of a treatment plant.
• Longer life due to regenerable nature and hence very economical over the consumable conventional media.
• High efficiency to remove iron as compare to conventional media, almost iron free water (<0.3 ppm) can be obtained.
PROPERTIES
Color Dark brown to black
Particle size mm 0.30 – 1.20
Effective size mm 0.45 – 0.60
Moisture Content % 46 – 54
Voids % 40
Bulk Density or  Shipping Weight gms/ltr 800
SUGGESTED OPERATING CONDITIONS
pH of feed water > 6.5
Dissolved oxygen > 15 % of Dissolved iron
Alkalinity ppm >100
Free chloride Nil
Organic matter ppm < 1.0
TDS (max) ppm 2500
Temperature (max)  °C 40
Bed depth mm 700 -1500
Service flow rate *BV 15
Back wash flow rate *BV 25-30
Back wash bed expansion % 50
Back wash time min 15-20
Back wash frequency hrs 8-10

*Bed Volumes

Pharma Polymer (23)

Ion Exchange Resin (36)

Cation Exchange Resins (8)

Strong Acid Cation (5)

Gel (4)

Macroporous (1)

Weak Acid Cation (2)

Gel (1)

Macroporous (1)

Non Regenerable Cation (1)

  1. CSA 309

Anion Exchange Resins (11)

Strong Base Anion (7)

Gel (3)

Isoporus (2)

Macroporous (2)

Weak Base Anion (3)

Macroporous (3)

Non Regenerable Anion (1)

  1. GA 711

Mixed Bed Resins (1)

Uniform Particle Size (7)

Speciality Resins (9)

  1. DCHR 74
  2. DCHR 78
  3. DIRM 412
  4. DCR 11
  5. CWA 66D
  6. DMB-13 S
  7. CGC 1200
  8. CMC 1900
  9. CMC 2400

Water Treatment Chemicals (0)