Sulfate Scale - Avista Membrane Treatment Solutions
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October 28, 2020

Sulfate Scale

Symptoms of sulfate scaling include:

  • Loss in permeate flow, primarily in the last stage
  • Poor rejection
  • Large increase in element weight (8040 elements may exceed 45 pounds)
  • Increased differential pressure
  • Visible crystalline material on the scroll ends of the affected element
  • No reaction upon the application of dilute acid to the foulant
Resource
Sulfate Scale
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