KHIA headerKnow-How in Action

VOL XXV, NO 9

Belzona® Protects Water Treatment Plant Filter

 
 

Industry:

Water / Wastewater (WATR)

 
 

Application:

Wall Problem Areas (WPA)

 
 

Customer Location:

Water treatment plant, Girona, Spain

 
 

Application Date:

May 2008

 
 

Application Situation:

Filter for removing organic matter.

 
 

Problem:

Severe corrosion of the stainless steel substrate due to the presence of Hydrogen Sulphide and Sulphuric acid. These are created by bacterial action in the organic matter.

 
 

Products:

Belzona® 1121 (Super XL Metal)

Belzona® 4311 (Magma CR1)

 

Substrate:

Stainless steel.

 
 

Application Method:

Application was carried out in accordance with Belzona Know-How System Leaflet TCC-5. After grit blasting, deeply corroded areas were rebuilt  using Belzona® 1121 followed by coating with two layers (grey and red) of Belzona® 4311.

 
 

Belzona Facts:

The filter was rapidly repaired and put back into service. The Belzona® 4311 provides excellent corrosion protection to all concentrations of Sulphuric acid ensuring long term protection of the equipment.

 
 

Photographs Description

  1. Initial state of the sieve
  2. Rebuilding with Belzona® 1121 
  3. Application of the second coating of Belzona® 4311 
  4. Finished unit

 

 
Case study pic one

 

 
 Case study pic two

 

 
 Case study pic three

 

 
 Case study pic four

 

 
 
For more information about Belzona visit: www.belzona.com