ARC- DS SM-30

RO membrane, the feed must be dechlorinated to prevent oxidation of the membrane. RO membranes have some chlorine tolerance before noticeable loss of salt rejection is observed. The first sign of chlorine attack on RO membrane is loss of membrane flux followed by an increase in membrane flux and salt passage. Eventual degradation may occur after approximately 200–1,000 hours of exposure to 1 mg/L of free chlorine (200–1,000 ppm-h tolerance). The rate of chlorine attack depends on various feed water characteristics. Under alkaline pH conditions, chlorine attack is faster than at neutral or acidic pH. An acidic pH is preferred for better biocidal effect during chlorination. Chlorine attack is also faster at higher temperatures and higher concentrations of heavy metals (e.g., iron), that can catalyze membrane degradation. Since oxidation damage is not covered under warranty, Albatross recommends removing residual free chlorine by pretreatment prior to exposure of the feed water to the membrane.

BENEFITS OF ARC- DS SM-30

ARC- DS SM-30 is used for removal of free chlorine and as a biostatic.

ARC- DS SM-30 is food-grade quality and free of impurities

ARC-DS SM-30 doesn’t contain any catalyst or any heavy metal

Although the dechlorination itself is rapid, good mixing is required to ensure completion. Static mixers are recommended.

The recommended injection point is downstream of the cartridge filters in order to protect the filters by chlorine.