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Shandong Sund Machinery WSZ-AO series buried integrated unit, plug-flow anaerobic + aerobic biological contact oxidation, elastic three-dimensional packing biofilm, resistant to shock load and not prone to sludge bulking, with a BOD5 removal rate above 90%. Main products: Sund WSZ-AO; representative models: WSZ-AO (SD series), WSZ-AO-2, WSZ-AO-5.
Business scope: Upstream · Water Services › III. Biochemical Treatment › Aerobic Bioreactor › Activated Sludge Process (Conventional / A²O / Multi-stage AO / Deep-shaft / Pure Oxygen / Bio-doubling).