AWC-UF-405

Summary

Product identification

• Product Name: AWC® UF-405
• Description: MF/UF Low pH Cleaning Compound

Advantages

• Low pH membrane-cleaning compound for dissolution of carbonate and phosphate scales from microfiltration and ultrafiltration surfaces and pores
• Effectively dissolves and chelates iron, aluminum and other metal oxides
• Buffered to maintain pH range even when product is accidentally overdosed
• Compatible with most UF/MF modules
• Certified by NSF to NSF/ANSI Standard 60

Typical Properties

• Appearance: White crystalline powder
• Odor: Characteristic
• Solubility in water: Soluble
• pH (1% solution): 2 - 3

Chemical Feeding and Control

• Use potable water free of residual chlorine or other oxidizing agents (RO permeate or DI water preferred).
• Prepare cleaning solution by adding 10-20 lbs of AWC UF-405 for every 100 gallons of water (~1–2.5 wt% Solution), depending on severity of fouling.
• Heat water to the maximum temperature allowed by the module manufacturer.
• Circulate cleaning solution throughout modules with filtrate valve closed, in feed direction for 30 min (tubular designs).
• Maintain a pH of 2-3 during circulation.
• Reverse flow direction and circulate for 30 more minutes.
• Measure pH every 15 minutes. Add AWC UF-405 as necessary to maintain pH 2-3.
• Repeat process until solution pH remains stable for two consecutive readings.
• Systems allowing back flushing may be back flushed with cleaning solution from filtrate to feed for 15 minutes.
• Flush modules with MF/UF filtrate after cleaning.

Safety & Handling

• Avoid breathing dust. Do not get in eyes, on skin or clothing.
• Keep container closed.
• Wash thoroughly after handling.
• Refer to the Safety Data Sheet for more information.

Packaging

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

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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