Reverse Osmosis Membrane Cleaning Chemicals & Nanofiltration: Reverse Osmosis (RO) Antiscalants

Nanofiltration & Reverse Osmosis: 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. AWC has developed 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 AWC 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 AWC antiscalants can eliminate the need for acid dosing, enable plants to operate at higher recoveries, and reduce cleaning frequencies. AWC RO 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.
  • AWC® A-101
    Membrane antiscalant designed for inhibition of sulfate scale formation in challenging feed water; calcium sulfate, barium sulfate & strontium sulfate.
  • AWC® A-104
    Phosphorous-free membrane antiscalant with broad inhibition capabilities; highly effective for inhibition of sulfate and phosphate scales.
  • 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.
  • Veraflux®
    Phosphorous-free, 11X concentrated reverse osmosis antiscalant (by volume) for reduced shipping cost.
  • 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.
  • AWC® A-103
    Membrane antiscalant especially designed to inhibit silica scaling at saturation levels up to MSI 12.
  • 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-108Fe
    Reverse Osmosis membrane antiscalant for feedwater with high concentration of ferric and/or aluminum coagulant carryover. Highly effective for control of aluminum silicate scales.
  • 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.
  • 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.
  • AWC® A-104
    Phosphorous-free membrane antiscalant with broad inhibition capabilities; highly effective for inhibition of sulfate and phosphate scales.
  • AWC® A-111 Plus
    Broad spectrum phosphorous-free RO antiscalant designed for use in municipal potable water systems.
  • Veraflux®
    Phosphorous-free, 11X concentrated reverse osmosis antiscalant (by volume) for reduced shipping cost.
  • 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.
  • 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.
  • 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-108Fe
    Reverse Osmosis membrane antiscalant for feedwater with high concentration of ferric and/or aluminum coagulant carryover. Highly effective for control of aluminum silicate scales.
  • AWC® A-117
    Premium RO/NF antiscalant for control of high levels of ferric and aluminum coagulant carryover.
  • AWC® A-102 Ultra
    Broad spectrum RO antiscalant designed for use with industrial membrane systems.
  • Everflux®
    Super concentrated RO antiscalant for reduced shipping cost.
  • AWC® A-102 Plus
    Broad spectrum scale inhibitor designed for use with municipal RO and NF membrane systems.
  • AWC® A-105
    Broad spectrum Reverse Osmosis antiscalant designed for use with municipal water reuse membrane systems.
  • AWC® A-111 Plus
    Broad spectrum phosphorous-free RO antiscalant designed for use in municipal potable water systems.
  • Veraflux®
    Phosphorous-free, 11X concentrated reverse osmosis antiscalant (by volume) for reduced shipping cost.
  • AWC® A-107
    Broad spectrum Reverse Osmosis antiscalant with tolerance to low concentrations of ferric coagulant carryover.
  • AWC® A-106
    Broad spectrum antiscalant/antifoulant for use with high natural organic matter (NOM) containing feed water.
  • 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-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.
  • AWC® A-107
    Broad spectrum Reverse Osmosis antiscalant with tolerance to low concentrations of ferric coagulant carryover.
  • AWC® A-108Fe
    Reverse Osmosis membrane antiscalant for feedwater with high concentration of ferric and/or aluminum coagulant carryover. Highly effective for control of aluminum silicate scales.
  • AWC® A-117
    Premium RO/NF antiscalant for control of high levels of ferric and aluminum coagulant carryover.