EZ TREATTM SODIUM METABISULPHITE 33% offers an economical, food-grade alternative in comparison to activated carbon. In addition, it does not promote bacterial growth, does not add organic material or carbon fines to the RO or U.F feeder, and in many cases offers superior/more chlorine removal.
EZ TREAT SODIUM METABISULPHITE 33% should be fed through a chemical pump into the system. Locations recommended are anywhere before the prefilter and the antiscalant pump allowing for maximum contact time in order to protect the membrane from Cl. EZ TREAT SODIUM METABISULPHITE 33% should be added continuously on a proportionate basis, at rates of 5.4-9 ppm Na2S2O5 to 1ppm of Cl in order to protect the RO/UF membrane from Cl ion. We recommend an initial feed of 5.4ppm with small incremental increases if required.