Wednesday, February 9, 2011

Which Cleaner Should I Use?



Before: Reverse osmosis membranes must be cleaned to yield required flowthrough rates - without contaminating food products.
After: After cleaning with TERGAZYME brand, diaphragm shows required drop in pressure differential - without an increase in the permeation flow.


Which Cleaner Should I Use? Use this chart to determine which cleaner is recommended for your cleaning application.
 Membrane
Soil Removed/Foulant Cleaned
Iron Oxide, Metals, Aluminum, Carbonate Scale, Some Polymer, Hydroxides, Other Acid Solubles
Silt, Clay, Organic Material, Aluminum, Bio-Film, Some Polymer, Oil & Grease, Alkaline Solubles
Silt, Clay, Organic Material, Aluminum, Bio-Film, Some Polymer, Oil & Grease, Alkaline Solubles
Silt, Clay, Organic Material, Aluminum, Bio-Film, Blood, Protein Based Soils, Oil & Grease, Bio-Mass Silt, Clay, Organic Material, Aluminum, Heavy Bio-Film, some Polymer, Oil & Grease, Alkaline Solubles
Cellulose, Acetate, & Tri-AC
RO/UF
Citranox, Citrajet Alconox* Liquinox* Tergazyme* n/a 
Polyamide/aramid
R/O / NF
Citranox, Citrajet Alconox Liquinox Tergazyme Alcojet**
Polysulfone & Derivative
U/F M/F
Citranox, Citrajet Alconox Liquinox Tergazyme Alcojet
PVDF & PTFE
UF/MF
Citranox, Citrajet Alconox Liquinox Tergazyme Alcojet*
Ceramic & Stainless
UF/MF
Citranox, Citrajet Alconox Liquinox Tergazyme Alcojet
All Porous Plastic
MF
Citranox, Citrajet Alconox Liquinox Tergazyme Alcojet
Polyvinyl Alcohol
Derivative NF
Citranox, Citrajet Alconox Liquinox Tergazyme Alcojet*
Polyolefin
UF/MF
Citranox, Citrajet Alconox Liquinox Tergazyme Alcojet
* Adjust pH with Citric Acid to membrane manufacturer tolerances.
** Check with membrane manufacturer for approval.
Approved membrane configurations are: Disc & Tube, Spiral Wound, Plate & Frame and Tubular styles.
RO = Reverse Osmosis, UF = Ultrafiltration, NF = Nanofiltration, MF = Microfiltration

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