WATER TREATMENT EQUIPMENT AND METHOD THEREOF

摘要

PURPOSE: A water treatment equipment and method thereof are provided, which can remove organic matter, nitrogen and phosphorus simultaneously by constituting biological reaction tank and chemical reaction tank. Especially, in the phosphorus removing tank(5), phosphorus contained in influent water is removed by aluminium ion released from aluminum plate installed in the tank(5) without any additional feed of aluminum salt. CONSTITUTION: In the water treatment equipment for removing organic matter, nitrogen and phosphorus components contained in influent water containing sewage and wastewater, the equipment comprises an anoxic tank(2) for removing organic matter from the influent water by using anaerobic microorganism; an aerobic tank(3) equipped with air distribution pipe(10) at the bottom for removing organic matter from the untreated influent water of the anoxic tank(2) by aerobic microorganism and nitrogen by nitrification microorganism at the same time; a first settling tank(4) for settling and removing sludge from the influent water of organic matter and nitrogen removed; a recycling line(8) for recycling treated water of the first settling tank(4) to the anoxic tank(2); two sludge discharge lines(16,19); a reaction tank(5) in which aluminum plate(12) for generating aluminum ion (Al¬3+) and silver plate(11) for expediting the generation of aluminum ion are installed for removing phosphorus component; a second settling tank(6) for settling and removing sludge of the influent water of phosphorus removed.