Before revision: Simple schematic description of the adsorption/bio-oxidation process Influent organic matter is removed in the A-stage mainly by flocculation and sorption to sludge due to the high loading rates ( 2-10 g BOD • g VSS−1 • d−1) and low sludge age (typically 4-10 h).
After revision: Simple schematic description of the adsorption/bio-oxidation process Influent organic matter is removed in the A-stage mainly by flocculation and sorption to sludge due to the high loading rates ( 2–10 g BOD • g VSS−1 • d−1) and low sludge age (typically 4-10 h).