Azito — Iron removal for thermal power plant

Côte d'Ivoire · Yopougon · 2023 · Azito thermal power station
Target
Iron <0.2 ppm
Type
Refurbishment
Filtration
Two-stage
Client
Thermal power plant

Modernization of an existing installation that no longer met its performance targets. The raw water, loaded with iron, was degrading the power plant's equipment. Our intervention: complete refurbishment of the iron removal system, with new technologies and materials matched to the expected service life.

WAP scope

  • Spraying & aerationNew system
  • Two-stage filtrationSand → manganese media
  • Soda dosingInjection regulated by inline pH meter
  • Sand filtersStainless replacement (fibreglass)
  • Filter mediaNew, multi-grain

Process

Air injection → pH lift → oxidation tower → sand filtration → manganese-media filtration. Each stage is instrumented to maintain performance over time.

Highlights

Lower energy consumption than the previous installation, landscape integration within the existing power plant footprint, simplified maintenance through the choice of stainless and fibreglass materials.

Azito iron removal plant — stainless filters
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