6 articles
Learn activated-sludge process fundamentals, including aeration basins, microorganisms, mixed liquor, return and waste activated sludge, secondary clarification, organic loading, solids control, and process stability.
Learn activated-sludge aeration, mixing, and dissolved oxygen control, including oxygen demand, blower and diffuser operation, DO profiles, process loading, energy efficiency, and troubleshooting.
Learn activated-sludge solids inventory and process control, including MLSS, MLVSS, RAS, WAS, sludge age, SRT, F/M, solids mass, clarifier inventory, wasting strategy, trends, and troubleshooting.
Learn secondary clarification and activated-sludge settleability, including clarifier hydraulics, sludge blankets, RAS, SVI, settleometer tests, bulking, rising sludge, solids carryover, and troubleshooting.
Learn activated-sludge monitoring and troubleshooting, including process trends, influent loading, DO, MLSS, RAS, WAS, settling, clarifier performance, effluent quality, upset diagnosis, and corrective-action strategy.
Learn biological nutrient removal fundamentals, including nitrification, denitrification, biological phosphorus removal, aerobic, anoxic and anaerobic zones, internal recycle, carbon, alkalinity, DO control, and troubleshooting.