Water treatment plants

In drinking water and wastewater treatment plants, many components such as grating flooring, air transfer pipes, aeration tank covers, mixer blades, and clarifier plates are made of FRP. Isophthalic polyester resin or vinyl ester resin is chosen for their resistance to chlorine, ozone, coagulant chemicals, and biological agents. Manufacturing methods include compression molding, filament winding, or hand lay-up.

The main advantage of using FRP in treatment plants is its lack of corrosion in humid environments with corrosive gases (such as H2S). Additionally, the non-porous surface prevents biofilm and algae growth, reducing cleaning costs. Alborz Organic Materials Company supplies resins certified for contact with drinking water (NSF/ANSI 61) for water treatment plant projects.