The advanced wastewater treatment method and equipment using the circular oxidation ditch of intermittent aeration method

摘要

end. Technical Field of the invention defined in the claims.; The present invention provides a high degree treatment of sewage, and more particularly to a single same aerobic conditions and to ever oxygen-free status is automatically repeated shift operation according to the temperature characteristics of the influent and the reactor the organic material in the reaction vessel, as well as nitrogen (N) and in an advanced treatment process of wastewater using the intermittent aeration type circular oxidation ditch to remove even the (P).; I. SUMMARY invention to solve.; A method for advanced treatment of sewage in the prior art would being processed by a step-by-step process, such as precipitation, aerated by the Activated Sludge Process for the aeration system to forcibly inject the oxygen into the reactor in a row, the required sites for the precipitation and aeration is there are large, as well as maintenance are complicated problems, above all, by the above process will have a problem that the nitrogen and phosphorus contained in sewage treatment, which gradually increase in recent years can not be.; Therefore, in recent years, but the processing method of ever reducing the spent grounds by using the oxidation ditch to embed their clarifiers in order to solve the conventional problems above-mentioned proposal of nitrogen and phosphorus treatment is still will insignificant, aerobic and anaerobic condition to occur continuously as a yirueojim oxidation ditch a processing method using a dual aeration system is a rectangular structure of the nitrogen removal and phosphorus by nitrification and denitrification reaction can be one continuous processing system must not only require that two or more reactors greatly expected Lot savings since it could not be did not completely solve the problems in the conventional wastewater treatment methods.; All. Solution subject matter of the invention.; Accordingly, the present invention as an anaerobic reaction vessel for dissolution of the components which are dissolved in the wastewater, be just a precipitated sludge as ever automatic repeat shift operation performed in a single reaction tank in an aerobic state and anaerobic state is a percentage by being decomposition of organic matter, just only two reactors being provided with denitrification, dephosphorization process is only intermittent aeration type reaction vessel of circular oxidation ditch made by to be able to remove even the nitrogen and phosphorus contained in the wastewater is one to solve all the problems described above.; la. An important use of the invention.; Advanced treatment of the sewage.