WASTEWATER TREATMENT METHOD USING ANAEROBIC CONDITION.

摘要

PURPOSE: A waste water treatment method for removing nitrogen will use biological anaerobic condition. CONSTITUTION: If concentration of nitrogen in the effluent was high, dissolved oxygen will be exhausted, and the exhaustion of dissolved oxygen will do harm to underwater life. The method is composed of nitrifying process in aerobic condition which is conducting in the aeration tank and process for removing nitrogen in the anaerobic condition after this nitrifying process. The nitrifying process is conducted by aeration process for 50 minutes, and process for removing nitrogen is an interruption of aeration for 10 minutes. The biological nitrification is the first process for removing of nitrogen, which microorganisms, for example, nitrosomonas and nitrobacter are related.