METHOD FOR REMOVING ALGAE, NUTRIENT SALTS FROM RESERVOIRS AND SYSTEM THEREFOR

摘要

PURPOSE: A method for removing algae, nutrient salts from reservoirs and system therefor is provided, which is characterized in that organic matters, nutrient salts, and algae are removed, and treated sludge is reused as fertilizer. CONSTITUTION: The system is composed of: a water tank equipped with an activated tank(12), a treatment tank(13), a middle weir(14), a front part weir(15), a back part weir(16), and a discharge hole(17); first pressurizing flotation device(20) equipped with a bubble supply pipe(21) which supplies bubble into the activated tank is installed behind a front part weir(15) for activating wastewater by fine bubble; secondary pressurizing flotation equipped with a bubble supply pipe(21) for supplying bubble into the activated tank(12) is installed behind a middle part weir(14) for rising flotation sludge and settling micro-sludge.