Antiscalants

RO Membrane Antiscalant RO systems use crossflow membrane filtration, where the water that is not purified exits the system as a concentrated brine. As water passes to the permeate side, the unpurified fraction of the water is left with all the salts, organics and colloidal particles that are rejected by the membrane. The higher the operating recovery, the more concentrated the brine will be. When dissolved salts in the brine exceed saturation, they begin to precipitate as scales. Likewise, organics and colloidal particles have a higher fouling potential as they become more concentrated along the length of the membrane system.

A S Harrison & Co offers highly effective inhibitors that eliminate the most challenging scales and significantly reduce colloidal and organic fouling in reverse osmosis (RO) and nanofiltration (NF) membrane systems. All our antiscalants are NSF approved for use in potable membrane systems. Our antiscalants are highly effective for all feedwater sources, including groundwater, wastewater, fresh surface water, seawater, and municipal water.

Our high-performance reverse osmosis (RO) antiscalants are effective at remarkably low dosages and can inhibit scales even at very high saturations. The use of our antiscalants can eliminate the need for acid dosing, enable plants to operate at higher recoveries, and reduce cleaning frequencies. In addition, these antiscalants control scales such as calcium carbonate, calcium phosphate, calcium sulfate, barium sulfate, strontium sulfate, calcium fluoride, iron hydroxide, iron phosphate, silica, and colloidal foulants. Our RO antifoulants disperse colloidal silica and natural organic matter.

A S Harrison & Co offers a wide range of reverse osmosis (RO) antiscalants to suit various operational, regulatory and financial requirements as show here:

Sulfate Scaling-High Saturation

AWC® A-101

Membrane antiscalant designed for inhibition of sulfate scale formation in challenging feed water; calcium sulfate, barium sulfate & strontium sulfate.

AWC® A-108

Membrane antiscalant designed for inhibition of calcium carbonate scaling up to CCNI of 2.3. Tolerant to ferric coagulant carryover; Highly effective in water reuse membrane applications.

AWC® A-119

Reverse Osmosis membrane antiscalant for feedwater with high concentration of ferric and/or aluminum coagulant carryover. Highly effective for control of aluminum silicate scales.

Megaflux® AF

Premium broad spectrum antiscalant designed to inhibit inorganic scale formation in membrane separation processes.

Megaflux® Fe

Reverse Osmosis membrane antiscalant for feedwater with high concentration of ferric and/or aluminum coagulant carryover. Highly effective for control of aluminum silicate scales.

Ultratek Si

Colloidal silica dispersant for use with industrial and municipal RO membrane systems. Prevents formed colloidal silica particles from coalescing and depositing on the membrane surface.

Seawater

Pureflux® MAR

A broad spectrum antiscalant designed to inhibit inorganic scale formation in SWRO plants operating at a feed pH < 8.7.

Pureflux® SW

A broad spectrum antiscalant designed to inhibit inorganic scale formation in SWRO plants operating at a feed pH < 8.7.

Pureflux® SWPF

A phosphorous- free broad spectrum antiscalant designed to inhibit inorganic scale formation in SWRO plants operating without pH adjustment.

Phosphorous Free-Antiscalants

AWC® A-104

Phosphorous-free membrane antiscalant with broad inhibition capabilities; highly effective for inhibition of sulfate and phosphate scales.

AWC® A-105

Broad spectrum Reverse Osmosis antiscalant designed for use with municipal water reuse membrane systems.

AWC® A-110

Premium RO Membrane antiscalant that exhibits excellent control of phosphate scale formation even in the presence of ferric coagulant carryover. Highly effective for control of aluminum silicate scales.

AWC® A-112

Premium Phosphorous-free RO antiscalant with broad spectrum capabilities. Effective for inhibition of sulfate and phosphate scales at very high saturation potentials. Good tolerance to ferric coagulant carryover.

Iron Scaling / Fouling-High Saturation

AWC® A-108

Membrane antiscalant designed for inhibition of calcium carbonate scaling up to CCNI of 2.3. Tolerant to ferric coagulant carryover; Highly effective in water reuse membrane applications.

AWC® A-117

Premium RO/NF antiscalant for control of high levels of ferric and aluminum coagulant carryover.

AWC® A-119

Reverse Osmosis membrane antiscalant for feedwater with high concentration of ferric and/or aluminum coagulant carryover. Highly effective for control of aluminum silicate scales.

Megaflux® AF

Premium broad spectrum antiscalant designed to inhibit inorganic scale formation in membrane separation processes.

Megaflux® Fe

Reverse Osmosis membrane antiscalant for feedwater with high concentration of ferric and/or aluminum coagulant carryover. Highly effective for control of aluminum silicate scales.

General Purpose

AWC® A-106

Broad spectrum antiscalant/antifoulant for use with high natural organic matter (NOM) containing feed water.

AWC® A-107

Broad spectrum Reverse Osmosis antiscalant with tolerance to low concentrations of ferric coagulant carryover.

AWC® A-111 Plus

Broad spectrum phosphorous-free RO antiscalant designed for use in municipal potable water systems.

Everflux®

Super concentrated RO antiscalant for reduced shipping cost.

Megaflux® AC

Premium broad spectrum antiscalant designed to inhibit inorganic scale formation in membrane separation processes.

Pureflux® GP

Premium broad spectrum antiscalant designed to inhibit inorganic scale formation in membrane separator processes.

Pureflux® GW

A broad spectrum antiscalant designed to inhibit inorganic scale formation in membrane separation processes.

Pureflux® M

A broad spectrum antiscalant designed to inhibit inorganic scale formation in membrane separation processes.

Veraflux®

Phosphorous-free, concentrated reverse osmosis antiscalant for reduced shipping cost.

Carbonate Scaling – High Saturation

AWC® A-107

Broad spectrum Reverse Osmosis antiscalant with tolerance to low concentrations of ferric coagulant carryover.

AWC® A-108

Membrane antiscalant designed for inhibition of calcium carbonate scaling up to CCNI of 2.3. Tolerant to ferric coagulant carryover and highly effective in water reuse membrane applications.

AWC® A-109

Reverse osmosis antiscalant that maintains its inhibition properties even in feedwater with very high alkalinity; High resistance to calcium-antiscalant precipitation formation. For use with CCNI up to 2.3.

AWC® A-110

Premium RO Membrane antiscalant that exhibits excellent control of phosphate scale formation even in the presence of ferric coagulant carryover. Highly effective for control of aluminum silicate scales.

Aluminum Scaling & Fouling – High Saturation

AWC® A-117

Premium RO/NF antiscalant for control of high levels of ferric and aluminum coagulant carryover.

AWC® A-119

Reverse Osmosis membrane antiscalant for feedwater with high concentration of ferric and/or aluminum coagulant carryover. Highly effective for control of aluminum silicate scales.

Megaflux® AF

Premium broad spectrum antiscalant designed to inhibit inorganic scale formation in membrane separation processes.

Megaflux® Fe

Reverse Osmosis membrane antiscalant for feedwater with high concentration of ferric and/or aluminum coagulant carryover. Highly effective for control of aluminum silicate scales.


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