Dealkalization
Dealkalization with carboxylic resins
Weak Acid Cation Exchanger in H+ form is preferred when total hardness is high and equal to alkalinity. The cations associated with the alkalinity are exchanged for H+ ions. The carbonic acid thus formed is removed by a degasser giving alkalinity free soft water. Salts of mineral acids or neutral salts are not exchanged.

Split stream process with strong acid cation exchanger
This process is preferred when alkalinity is high compared to hardness and is present as Sodium alkalinity. In this scheme, water is split in two streams and is passed through strong acid cation exchange resin in Na+ form and in H+ form in such a proportion that treated, blended water is free of total hardness and alkalinity.

The exhausted cation resin in Hydrogen form is regenerated by 0.7 - 4% of mineral acids like HCl or H2SO4 and Sodium form resin is regenerated by 5 - 10% NaCl.

After every service cycle the resin is backwashed with water followed by regeneration with 5-15% of NaCl solution.

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:	High capacity acrylic resin. Excellent physical and chemical stability.
CXO-12:	High capacity acrylic resin. Excellent physical and chemical stability. Lower reversible swelling.
CXO-12(MP):	High capacity acrylic macroporous resin. Excellent physical and chemical stability. Lower reversible swelling.

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