AWC-UF-427

Summary

Product identification

• Product Name: AWC® UF-427
• Product Description: MF/UF High pH Oxygenated Cleaning Compound

Advantages

• High strength oxygenated powder formulation specifically designed for removal of heavy organic fouling from microfiltration and ultrafiltration surfaces and pores
• Penetrates and removes biological slime
• Disperses inorganic particulates such as silt, silica, clay and other colloidal particles
• Removes polymers, emulsified oils, dyes and organic colors from the membrane surface
• Buffered to maintain pH range even when product is accidentally overdosed
• Compatible with most MF/UF modules
• Certified by NSF to NSF/ANSI Standard 60

Typical Properties

• Appearance: White crystalline powder
• Odor: Odorless
• Solubility in water: Complete
• pH (2% solution): 10.6 ± 0.4
• Peroxide Content (1% Solution): 1000 ppm as H₂O₂

Chemical Feeding and Control

• Prepare cleaning solution using MF/UF filtrate. For best results, avoid using high hardness water.
• Solution Preparation: 9–17 lbs AWC UF-427 for every 100 gallons of water (~1–2 wt% Solution).
• Minimum total cleaning time: 3 hours for heavy fouling.
• Heating solution to the maximum temperature allowed by the module manufacturer will enhance cleaning results.
• Cleaning procedure:
  1. Circulate cleaning solution throughout modules with filtrate valve closed, in feed direction for 30 min (tubular designs).
  2. Alternate with soak for 30 minutes.
  3. Reverse flow direction and recirculate for 30 more minutes.
  4. Repeat steps 1–3.
• If pH decreases below the target pH range of 10.5–11.5, add more AWC UF-427 to maintain the target range.
• Do not exceed membrane manufacturer’s recommended exposure time to high pH cleaners, and do not exceed the membrane’s hydrogen peroxide tolerance.
• If back-flushing is permissible, cleaning results may be enhanced by back flushing cleaning solution from filtrate to feed for 15 minutes.
• After cleaning, flush modules with MF/UF filtrate.

Safety & Handling

• Store in a cool, dry, and well-ventilated area. Keep containers closed.
• Wash contaminated clothes before re-use. Wash thoroughly after handling.
• For more information, see the Safety Data Sheet provided with this product.

Packaging

• 50 lb. pails and 400 lb. non-returnable plastic drums

Disclaimer This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror