Demineralization
Generally, demineralization of water is carried by first passing water on cation exchanger in the hydrogen form followed by an anion exchanger in hydroxyl form, in two column process.
The carbon dioxide produced after cation exchanger is economically removed by a degasser placed between the cation and anion exchangers or directly by a strong base anion exchanger.

Demineralization without silica removal
Weak base anion exchange takes up strong mineral acids like HCl and H2S04; weak acids like carbonic and silicic acids passed through without being exchanged. The carbonic acid for (or C02) is removed by a degasser placed after weak base anion exchanger. By this process most of the salts from raw water are removed except SiO2.
The weak base anion exchanger is regenerated after exhaustion by 1 to 5% of NaOH, Na2CO3 or NH4OH.

Typical Scheme Diagram

Demineralization with silica removal
Strong base anion exchanger, which removes weak acids like carbonic and silicic acids along with strong mineral acids like H2S04, HCl, etc. The degasser is generally placed between the cation and anion exchangers for economical removal of C02. The treated water quality achievable is, of conductivity <30 Micro Mhos, SiO2 < 0.5 ppm and pH 7.5 to 9.5.
The strong base anion exchanger is regenerated after exhaustion by 4 to 5% NaOH solution.

Typical Scheme Diagram

  • All the above mentioned schemes are flexible enough for suitable application based modifications.
  • PSF: Pressure Sand Filter
  • ACF: Activated Carbon Filter
  • SBA: Strong Base Anion
  • WBA: Weak Base Anion
  • DGT: De-gasser Tower
  • SAC: Strong Acid Cation
  • WAC: Weak Acid Cation
Packaging
  Super sacks   1000 lits   Super sack   35 cft
  MS drums   180 lits   Fibre drums   7 cft
  HDPE lined bags   25/30 lits   HDPE lined bags   1 cft


       Tulsion®
FEATURES
     T-42: High capacity gel resins. Excellent chemical and physical properties. Excellent resistant to oxidation.
     CXO-9: Acrylic resin. Excellent physical and chemical stability.
     CXO-12: High capacity acrylic resin. Excellent physical and chemical stability. Limited reversible swelling.
     A-23(P): High basicity. Tough gel poous resin. Excellent physical and chemical stability.
     A-27: High capacity isoporous resin. High resistance to mechanical and osmotic shock.
     A-27(MP): Macroporous resin. Excellent chemical and physical stability. High resistance to organic fouling.
     A-23: Tough gel resin. Excellent chemical and physical stability.
     A-32: Tough gel resin. Excellent chemical and physical stability. Good regenerating efficiency.
     A-36: Better regeneration efficiency. Isoporous resin. Excellent chemical and physical properties.
     A-36 (MP): Macroporous resin with good resistance to oxidation & good regenerating efficiency.
     M-30: Macroporous resin. Better temp. stability. Silica leakage in between type 1 and type 2. Good regeneration efficiency.
     A-2X (MP): High capacity macroporous resin with excellent regeneration efficiency. Excellent physical, chemical & organic resistance properties.


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