Complete range of Scraper bridges
Longitudinal Settlers
Scraper Bridge for Sand Separator with Grease Separator
Scraper bridge with blades
Bridge scraper with suction
Circular Settlers
Scraper bridge with blades
Radial Suction Scraper Bridge
Diametral Suction Scraper Bridge
Weirs for Settlers
Gravity Thickening Tanks for Sludge
Comb-type thickening bridge
Primary settling is designed to capture gravitationally settleable suspended substances that have passed through sand separators and grease separators. The retained substances are referred to as primary sludge. The materials retained together with the primary sludge include suspended solids and organic substances expressed as the five-day biochemical oxygen demand (SS and BOD5). Secondary settling aims to capture the biologically produced sludge in activated sludge basins and separate the sludge from the treated water. Secondary settlers are positioned downstream of the biological treatment.
We have 20 years of experience in sizing, designing, and manufacturing a complete range of scraper bridges for primary and secondary settlers with diameters up to 60 m.