| 摘要 |
PURPOSE: A wastewater treatment system is characterized in that a system structure of the wastewater treatment is streamlined, no existence of particle contaminants in outflow water improves the quality of the outflow water, and a dramatic decrease in sludge production lifts burdens on the sludge treatment in a flow-up process. CONSTITUTION: A wastewater treatment system includes an anaerobic reactor (40), an anaerobic fluidized bed separation film reaction bath (50) and a biological nitrogen removal reaction tank (60). The anaerobic reactor separates organic matters in wastewater, in which suspended solids are removed, into methane and carbon dioxide by using anaerobes and removes the methane and carbon dioxide. The anaerobic fluidized bed separation film reaction bath collects the remaining organic matters included in the effluent from the anaerobic reactor in a form of methane and removes particle contaminants in the effluent by using a membrane (54). The biological nitrogen removal reaction tank removes ammonia nitrogen remained in the effluent from the anaerobic fluidized bed separation film reaction bath under the condition of low concentrated-dissolved oxygen by using the anammox reaction. [Reference numerals] (59) Control unit; (62a) Air supplier |
