Membrane Chemicals

Summary

Product Identification

AXEON Water Technologies offers a range of engineered membrane chemicals designed for commercial and industrial applications. These chemicals are formulated to be compatible with all brands and types of Reverse Osmosis (RO), Nanofiltration (NF), and Ultrafiltration (UF) membranes. They provide antiscaling and antifouling capabilities and are certified under ANSI/NSF Standard 60 for drinking water production. The product line aims to prolong membrane life and enhance system performance.

The product categories include:

• Antiscalants: S-100, S-200
• Antifoulants: F-25
• Membrane Cleaners: C-10, C-20
• Support Chemicals (Preservatives): M-100

Antiscalants

AXEON S-100 Antiscalant

• Description: A highly effective antiscalant specifically formulated for feedwaters with high levels of metal oxides, silica, and scale-forming minerals. It is effective over a wide range of concentrations and does not flocculate dissolved polymers. It can reduce operating and capital costs for RO, NF, and UF systems and can substitute for ion exchange bed pretreatment.
• Product Benefits:
  • Effective in retarding polymerization and precipitation of silica.
  • Effectively controls inorganic scales over a large concentration range.
  • Certified under ANSI/NSF Standard 60 for drinking water production.
  • Compatible with major manufacturer’s RO, NF, and UF membranes.
  • Does not flocculate dissolved iron/aluminum oxide/silica complexes.
  • Effective in controlling calcium carbonate (CaCO₃) and calcium sulfate scales.
  • Effective in feedwaters with pH range 5.0 – 10.0.
  • Efficacious for controlling aluminum, iron, and heavy metal salts.
• Technical Specifications (Liquid):
  • Appearance: Clear, colorless
  • pH: 1.5 ± 0.8
  • Specific Gravity: 1.08 ± 0.05
• Technical Specifications (Powder):
  • Appearance: Colorless
  • pH (1% in water): 11 – 12
• Dosing Recommendations:
  • Injected into the feedstream prior to the static mixer and cartridge filter.
  • Effective pH range: 5 – 10.
  • Useful dosage range: 1 – 15 mg/L (neat).
  • Controls a wide range of inorganic scales at up to 100 times saturation values or higher.
  • Effective against scales including calcium carbonate, calcium sulfate, barium sulfate, strontium sulfate, iron hydroxide, aluminum hydroxide, and silica.
  • If frozen, may be thawed and mixed before use.
  • Stability is excellent, best used within 12 months.
• Packaging: Liquid (Pails and drums), Powder (Totes).

AXEON S-200 Antiscalant

• Description: A highly effective antiscalant formulated for feedwaters with high levels of metal oxides, silica, and scale-forming minerals. It is effective over a wide range of concentrations and does not flocculate dissolved polymers. Recommended for reducing operating and capital costs of RO, NF, and UF systems. It inhibits polymerization of reactive silica and disperses colloidal (non-reactive) silica.
• Product Benefits:
  • Effective in retarding polymerization and precipitation of silica.
  • Effectively controls inorganic scales over a large concentration range.
  • Certified under ANSI/NSF Standard 60 for drinking water production.
  • Compatible with major manufacturer’s RO, NF, and UF membranes.
  • Does not flocculate dissolved iron/aluminum oxide/silicate complexes.
  • May be used diluted or undiluted.
  • Effective in feedwaters with pH range 5.0 – 10.0.
  • Particularly efficacious for controlling coagulation of colloidal silica by aluminum, iron, and heavy metal salts.
• Technical Specifications (Liquid):
  • Appearance: Clear, colorless
  • pH: 1.5 ± 0.8
  • Specific Gravity: 1.08 ± 0.05
• Technical Specifications (Powder):
  • Appearance: Colorless
  • pH (1% in water): 11 – 12
• Dosing Recommendations:
  • Injected into the feedstream prior to the static mixer and cartridge filter.
  • Effective pH range: 5 – 10.
  • Useful dosage range: 1 – 50 ppm.
  • Controls a wide range of inorganic scales along with reactive and nonreactive silica.
  • If frozen, may be thawed and mixed before use.
  • Stability is excellent, best used within 12 months.
• Packaging: Liquid (Pails and drums), Powder (Totes).

Antifoulants

AXEON F-25 Antifoulant

• Description: A highly effective anticoagulant and antifoulant for all membrane systems treating feedwaters with high potential for fouling by silt, organics, colloids, and fine particulates. It is effective over a wide range of concentrations and does not flocculate dissolved polymers. It acts as an anti-deposition agent for colloidal matter in sea and brackish surface waters, and industrial and municipal wastewaters. Prevents coagulation and membrane fouling by colloidal organic matter (e.g., humic acid, lignin, tannin, microorganisms, polysaccharides, lipids, proteins, cellular debris, organic polymers) and inorganic colloids (e.g., silica, clay, silt, sulfur, microcrystalline precipitates).
• Product Benefits:
  • Inhibits coagulation and deposition of organic and inorganic colloidal particles.
  • Reduces requirements for membrane cleaning by decreasing the rate of membrane fouling.
  • Effectively reduces membrane fouling when processing waters with high SDI values.
  • Certified under ANSI/NSF Standard 60 for drinking water production.
  • Eliminates the need for additional expensive pretreatment equipment and chemicals to control feedwaters with high SDI values.
  • Compatible with major manufacturers’ RO, NF, and UF membranes.
  • Compatible with simultaneous administration of antiscalants into feedwaters.
• Technical Specifications (Liquid):
  • Appearance: Amber clear liquid
  • pH: 7 – 9
  • Specific Gravity: 1.02 ± 0.15
• Technical Specifications (Powder):
  • Appearance: Tan colored powder
  • pH (1% in water): Approx. 7
• Dosing Recommendations:
  • Injected into the feedstream prior to the static mixer and cartridge filter.
  • Effective pH range: 2 – 14.
  • Useful dosage range: 1 – 100 ppm neat (liquid), and 0.3 – 33 ppm (powder). The liquid is 33% w/w of the powder in water.
  • Controls colloidal particles of microbial, plant, or inorganic origins, and organic compounds in industrial process or waste streams.
  • If frozen, may be thawed and mixed before use.
  • Stability is excellent, best used within 12 months.
• Packaging: Powder (Custom sizes, 50 lbs, 100 lbs), Liquid (Custom sizes, 5 gallons, 55 gallons).

Membrane Cleaners

AXEON C-Series Cleaners are heavy-duty action cleaners that mix with water to form an easy-to-use cleaning solution. They safely and effectively remove a wide range of membrane foulants from polyamide thin film (TF), cellulose acetate (CA), and ultrafiltration (UF) membrane elements.

• General Benefits:

  • Ideal for prolonging membrane life and obtaining a higher level of performance.
  • Formulated to counteract a variety of foulants.
  • Offers substantial cost savings on replacement membranes.

• Specific Products:

  • C-10:
    • For Removing: Calcium Carbonate Scale
    • Membrane Types: TFC, CA, and UF
    • Solution pH: 2
  • C-20:
    • For Removing: Organics
    • Membrane Types: TFC and UF
    • Solution pH: 11

• Symptoms of Calcium Carbonate Scale:

  • Scale extruding from the downstream end of the last membranes in the system.
  • Scale dissolves when introduced to a dilute hydrochloric acid solution.
  • Poor salt rejection, low flow, and/or high pressure differential on individual membrane test data.
  • 8” x 40” Element weight exceeds 45 pounds.
  • Reports of interruption in antiscalant or acid injection.
  • Reports of scale in the last vessel or piping of the concentrate stream.

• Testing for Calcium Carbonate Scale: Conduct a quick test by adding a small sample of the foulant to a 1:1 dilution of HCl and DI water. If calcium carbonate is present, it will bubble.

• Symptoms of Biological Fouling:

  • Visible slime on the feed side of the membrane.
  • Reports of slime in the cartridge filter housing and piping.
  • Reports of high pressure differential in the first array.
  • Odor.
  • Individual membrane test data reports high pressure differentials.
  • Membranes are telescoped.

• Steps to Prevent Biological Fouling:

  • Properly dose sodium bisulfite.
  • Clean and sanitize the pretreatment equipment and piping.
  • Consider an intermittent biocide treatment.
  • Evaluate the necessity of a continuous injection biocide.

Support Chemicals

AXEON M-100 Membrane Preservative

• Description: Safely prevents microbiological growth within membrane elements and systems during long and short-term storage. It replaces the use of sodium metabisulfite and other chemicals that can be hazardous or unstable, providing an effective, long-term, and environmentally safe alternative. It is a dry, stable, nonreactive powder.
• Product Benefits:
  • Safely and effectively prevents microbiological growth.
  • Replaces the use of sodium metabisulfite and other chemicals.
  • Effective long-term.
  • Does not create environmental or health risks.
  • Compatible with all membrane types.
  • Rinses easily from membranes.
  • Packaged as a dry, stable, nonreactive powder.
• Specifications:
  • For Removing: Microbiological growth within membrane elements and systems during storage.
  • Membrane Type: Thin film composite, cellulose acetate, ultrafiltration.
  • Mixing Ratio: 1 pound AXEON M-100 to 6 gallons water.
  • pH (of solution): Medium / Low.
• Procedures (In Storage):
  1. Clean the membranes with AXEON C10 or C20 Cleaners prior to storage.
  2. Mix 1 pound M-100 to 6 gallons of good quality water (RO product water).
  3. Recirculate storage solution at low pressure (less than 60 psig) through membranes for a minimum of 15 minutes.
  4. Shut system down, ensuring storage solution does not drain out of membranes.
  5. After storage, rinse membranes with good quality water for 30 minutes before system start-up.
• Procedures (Container Storage):
  1. Clean membranes with AXEON C10 or C20 Cleaners.
  2. Mix 1 pound M-100 to 6 gallons of good quality water (RO product water). Place membranes in storage container containing M-100 solution.
  3. After storage, place membranes in system and rinse with good quality water for 30 minutes prior to system start-up.

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Disclaimer: This summary is based on the provided text extract. It may not include all figures, footnotes, or the most recent revisions found in the official PDF. For contractual data, always refer to the specific OEM PDF revision used on the project.

Official datasheet (PDF)

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