SBR a small sized wastewater treatment system of SBR method using both fixed and speed changeable floating aerator and a floating discharge device and the wastewater treatment process

摘要

The present invention relates to a small scale wastewater treatment apparatus equipped with a fixed speed variable surface aeration apparatus and a floating discharge apparatus, and more particularly, it is possible to control fluidity of nitrification, denitrification and phosphorus discharge according to characteristics of a treatment object, The decomposition rate is greatly improved by increasing the non-proliferation rate by repeating the continuous agitation and the oxygen on the surface of the reactor by decomposition of the organic matter and the microbial growth by the dissolved oxygen, It is possible to maintain the C / N ratio (ratio of organic carbon and nitrogen) to 3.5 ~ 4.8 in all sections of the wastewater, A waste water treatment device provided with a floating discharge device capable of discharging treated water having undergone solid- And a method for treating waste wastewater. The present invention relates to a reactor 100, a fixed speed variable surface aerator 200, a flow booster 250, a floating discharge device 300, an inlet pipe 400, a rotating current prevention wall 500, And a small-scale wastewater treatment apparatus 1000 of the SBR method including the SBR method. In the present invention, it is preferable that the fixed speed variable surface aerator 200 includes a fixing device 210, a stirring device 220, and a power generating part 230. Processing apparatus 1000 is provided. The present invention may also be applied to a small scale wastewater treatment apparatus 1000 of the SBR process, characterized in that an inflow injecting device 410 is provided in the inflow pipe 400 to inject lower wastewater into the inflow pipe. Lt; / RTI In addition, the present invention is characterized in that the flow booster 250 described above is formed at the lower end of the rotary shaft part 240 and includes at least one guide vane 251 to perform upward stirring of the wastewater flowing into the lower layer of the reaction vessel (SBR) method according to the present invention. The present invention also relates to an inflow manhole process for inflowing wastewater to be treated and transferring the wastewater to the next process for removing contaminants; A contaminant removal process for removing fine particles, noncorrosive inorganic substances, and other suspended contaminants contained in the wastewater transferred from the inflow manhole; An SBR reaction process including the small scale wastewater treatment device; An ultraviolet disinfection unit (UV disinfection unit) and a flow rate measurement process for ultraviolet disinfecting purified water discharged from the wastewater treatment apparatus and measuring the capacity; And a sludge storage tank for transferring and storing the sludge discharged from the wastewater treatment device. The present invention also relates to a process for introducing wastewater into an SBR reaction tank (meaning the reaction tank) through an inflow injector 410; In order to oxidize or remove the organic substances in the wastewater introduced through the inflow injector 410 and to over-take phosphorus by nitrogen oxidation and activated sludge, the concentration of dissolved oxygen The abandonment process varying the speed according to the speed; A reaction process in which the contact area between the organic material and the activated sludge is increased and the oxygen is blocked by simple mixing with low speed stirring for denitrification; An optimal dissolved oxygen retention rate variable abandonment process for inhibiting untreated nitrogen depletion and phosphorus release using the surface aeration device 200; A sedimentation process in which stirring of the treated water treated in the SBR reaction tank is stopped and solid-liquid separation is performed using independent precipitation, coagulation precipitation, interfacial precipitation, and consolidation precipitation; And the supernatant separated in the precipitation process discharges the supernatant of a certain depth through the floating discharge device 300. [ Also, the present invention is characterized in that the anoxic (or anaerobic) reaction and the oxic reaction are alternately carried out by the continuous cycle, and the oxic reaction is accompanied by the oxidation of the organic matter, the nitrogen oxidation and the phosphorous intake, and the anoxic (or anaerobic) And an organic substance is consumed in the waste water treatment process.