KHIA headerKnow-How in Action

VOL XXVI, NO 111, ELITE

Belzona® Provides Protection From Hot Gases At Water Treatment Plant

 
 

Industry:

Water / Wastewater (WATR)

 
 

Application:

Tanks and Chemical Containment Areas (TCC)

 
 

Customer Location:

Water treatment plant, Slovakia

 
 

Application Date:

March 2011

 
 

Application Situation:

Gases collected from the bilogical water treatment are processed in thermo-reactor and the gases at 75 – 130°C are corrosive.

 
 

Problem:

Sulphides, Sulphates, Chlorides, Ammonia, etc. in the gas caused pitting corrosion in the unit after 10 months.

 
 

Products:

Belzona® 1392

Belzona® 4311 (Magma CR1)

 

Substrate:

Stainless steel (AISI 304 L)

 
 

Application Method:

Application was carried out in accordance with Belzona Know-How System Leaflet TCC-5. After grit blasting and chemical cleaning, areas were coated with Belzona® 1392 or Belzona® 4311 (depending on temperature).

 
 

Belzona Facts:

Based on high temperature and various chemicals present,Belzona solution was chosen. After more than 12 months in service no defects have occurred and equipment remains fully protected.

 
 

Photographs Description

  1. General view of the reactor
  2. Corrosion before repair
  3. After grit blasting pitting corrosion clearly evident
  4. Iinspection after 6 months showed no damage or defects on the coating
 
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