Coagulation Sedimentation Tank
The coagulation sedimentation tank consists of a mixing reaction zone (agitator + flocculant dosing system), inclined tube/plate sedimentation zone, sludge scraper, and sludge discharge system. With a treatment capacity of 50-5,000m³/d and suspended solids removal rate ≥95%, it features high flocculation efficiency (floc formation time ≤20min), fast sedimentation (retention time 1.5-2h), and automatic sludge discharge (adjustable interval). Raw water reacts with PAC/PAM in the mixing zone to form flocs, which slowly flocculate in the reaction zone before entering the sedimentation zone. Flocs settle by gravity (settling velocity ≥0.3mm/s), with supernatant discharged through the water collection tank and sludge collected by the scraper into the sludge hopper. Widely used in suspended solids treatment for mine water (e.g., open-pit mine surface runoff), municipal wastewater pretreatment, food processing wastewater turbidity removal, and primary purification of industrial wastewater (e.g., dyeing, chemical industries).
