Reverse Osmosis Membrane Antiscalant and Antifoulants are designed to inhibit formation of inorganic scales in membrane separation processes. ALKRO range of RO Antiscalants and Antifoulants are highly effective on R.O. feed water having a high calcium sulfate scaling potential. It stops crystal growth of calcium sulfate scale, which is extremely difficult to remove once it has formed on an RO membrane. It surpasses the performance of other antiscalants (such as Perma-treat 191 etc. of Nalco) under stressed conditions of high pH. ALKRO antiscalants also effectively stabilizes metal ions to prevent fouling of the membrane. ALKRO R.O. MEMBRANE ANTISCALANTS are available in low and high pH that enables to adjust the pH of permeate water without adding acid and alkali. Equivalent or even better than the followings:- Permatreat PC 191, Maxtreat 9001, Maxtreat 9004, Indion 8111 etc. Application: RO, NF, UF Membranes Specification Chemical Type Organic chemical compound Form Liquid Specific Gravity Ranges from 1.1 – 1.3 depending upon product pH Ranges from 2 – 7 depending upon product Solubility Completely soluble in water RO Membrane Antiscalant Dosage: ALKRO antiscalant or antifoulant chemical is normally fed continuously prior to the final cartridge filter. It should be injected by chemical dosing pump from a dilution tank or directly from the drum to the feed water line. The amount of antiscalant or antifoulant required to inhibit scale formation depends on the quality of feed water and size of the membrane system. The specific dosage rates will be specified by the CSL technical representative. Major Benefits Prevention of Scaling Reduced downtime required for periodic cleaning of membranes Enhances the quality of permeate water Easy to use and handle Maintains flow rate close to design and saves power Increase in productivity

1. Chemtex manufactures Reverse Osmosis Membrane Antiscalant
and Antifoulants for industrial purposes.
Reverse Osmosis Membrane Antiscalant and Antifoulants are designed to inhibit formation
of inorganic scales in membrane separation processes.
ALKRO range of RO Antiscalants and Antifoulants are highly effective on R.O. feed water
having a high calcium sulfate scaling potential. It stops crystal growth of calcium sulfate scale,
which is extremely difficult to remove once it has formed on an RO membrane. It surpasses the
performance of other antiscalants (such as Perma-treat 191 etc.of Nalco) under stressed
conditions of high pH. ALKRO antiscalants also effectively stabilizes metal ions to prevent
fouling of the membrane.
ALKRO R.O. MEMBRANE ANTISCALANTS are available in low and high pH that enables to
adjust the pH of permeate water without adding acid and alkali.
Equivalent or even better than the followings:-
Permatreat PC 191, Maxtreat 9001, Maxtreat 9004, Indion 8111 etc.
Application:
RO, NF, UF Membranes
Specification
Chemical Type
Organic chemical
compound
Form Liquid
Specific Gravity
Ranges from 1.1 – 1.3
depending upon product
pH
Ranges from 2 – 7
depending upon product
Solubility Completely soluble in water
Dosage:
ALKRO antiscalant or antifoulant chemical is normally fed continuously prior to the final
cartridge filter. It should be injected by chemical dosing pump from a dilution tank or directly
from the drum to the feed water line. The amount of antiscalant or antifoulant required to inhibit
scale formation depends on the quality of feed water and size of the membrane system. The
specific dosage rates will be specified by the CSL technical representative.

2. Major Benefits:-
Prevention of Scaling
Reduced downtime required for periodic cleaning of membranes
Enhances the quality of permeate water
Easy to use and handle
Maintains flow rate close to design and saves power
Increase in productivity