THE TREATMENT UNIT OF SEWAGE AND WASTEWATER USING MEMBRANE BIO REACTOR

摘要

The present invention relates to a wastewater treatment apparatus using a membrane separation process, a stirring tank for agitating the introduced wastewater, aeration tank for culturing and agglomeration of aerobic microorganisms through the inflow of oxygen by the aeration device, the agitated wastewater, By constructing a wastewater treatment device consisting of a filtration tank for filtering the wastewater passed through the stirring tank and the aeration tank with a hollow fiber membrane module, through this process to treat wastewater, such as domestic wastewater, toilet and livestock wastewater, factory wastewater, and the hollow fiber membrane module to backwash It is easy to manage.;According to the present invention, the stirring tank 10, the aeration tank 20, and the filtration tank 30 are composed of a main body 40 sequentially configured and a peripheral device for operating the bar. A plurality of impellers 12 are fixed to the fixed shaft 11, and the aeration tank 20 is provided with an aeration device 21 for generating air at a lower portion thereof, and the stirring tank 10 and the aeration tank ( 20 forms a penetrating flow hole 41, and the filtration tank 30 forms the aeration tank 20 and a flow portion 42 having an upper portion thereof, and the upper and lower portions of the filtration tank 30 are opened. A cylindrical sieve 31 is provided, the upper portion of which constitutes a return line 43 connected to the stirring vessel 10 by a pipe, and the lower portion of the air support device 35 that generates air. In addition, the sieve 31 is provided with a hollow fiber membrane module 32 to form a filtration tank 30 to obtain a body portion 40 together with the stirring tank 10 and the aeration tank 20. The peripheral device includes a motor 51 rotating the shaft 11, a pump pump 53 for introducing waste water into the stirring tank 10, the aeration device 21 and the air flotation device 35. It consists of an air compressor (54) for supplying the suction / pressure pump (55) for moving the filtered water, and together with the main body portion 40 constitutes a wastewater treatment apparatus.;The wastewater treatment device configured as described above cultures semi-aerobic microorganisms by introducing the introduced wastewater into the stirring process of the agitation tank. In the subsequent aeration tank, the aerobic microorganisms in the water are rapidly cultured through the air supply and aeration device, and the nitrification is carried out by nitrification process through these. Nitrogen is generated, and the wastewater introduced into the sieve of the filtration tank is filtered through the hollow fiber membrane module. At this time, air bubbles are generated around the hollow fiber membrane module by the air flotation device, thereby minimizing the formation of a gel layer on the surface of the hollow fiber membrane. In the case of cleaning according to the gel layer formation, the hollow fiber membrane module is backwashed, and its management is easy.;And part of the waste water inside the trough is introduced into the stirring tank through the return line of the upper portion, the part of the aeration tank and the filtration tank again cultivation of semi-aerobic microorganisms and aerobic microorganisms, and some of the nitrate nitrogen Nitrogen is removed by degassing.; Wastewater Treatment System, Toilet, Aeration, Sedimentation, Membrane, Separator, Filtration, Hollow Fiber Membrane