ADVANCED SEWAGE WATER TREATMENT APPARATUS AND METHOD USE OF OXIDATION DITCH

摘要

The present invention is a technique about Advanced treatment of sewage by using microorganisms in the oxidation ditch reaction (oxidation ditch) at a sewage treatment plant or a waste water treatment plant.; An object of the present invention is to improve the oxidation ditch to provide a high level of processing apparatus and method of sewage using an oxidation ditch which can be removed by treatment with nitrogen and phosphorus in the sewage with the organic material and to increase capacity.; If, but oxidation ditch of 1 for the achievement of this purpose is, install a mixing chamber for mixing the conveyed sludge and sewage in front of the oxidation ditch and separate the oxidation ditch of the rear end thoroughly mixed with the possible aerobic denitrification tank, anaerobic tank, aerobic tank each in size a ratio of 8: 6: 2, so that the total residence time was adjusted to 16 hours.; Aerobic denitrification tank are evenly installed diffuser microstructure composed of a diffuser and the pipe therein and installed the inlet manifold so that the mixture of sewage and transporting sludge evenly distributed in the aerobic denitrification tank and the aerobic denitrification circulating the mixed liquor in the tank It was to be able to install the axial flow agitator.; And the blowing air volume was set automatic controller allows to control the blowing air volume of air blower was installed so that the dissolved oxygen concentration meter, and the oxidation-reduction potentiometer (ORP) the oxidation-reduction potential can be maintained at a predetermined value.; Anaerobic tank is installed by connecting and exhalation but denitrification tank therein, the agitator was installed so that the mixed solution is not precipitated was set a redox potential meter.; Aerobic tank, but is installed on the rear end of the anaerobic tank was installed in an abandoned can supply sufficient air, aerobic tank was placed a dissolved oxygen concentration meter.; A mixture of a sewage outlet from the oxidation ditch can be purified in the final clarifier and then the symbol is the settled sludge is discharged and carries twos mixed in front of the oxidation ditch as conveying sludge sludge portion was removed as surplus sludge.; If oxidation ditch are many connections are aerobic denitrification tank, anaerobic tank, the volume of the aerobic tank 8: 6: Align the case arranged a number of oxidation ditch and, if necessary, so that the second ratio by improving the inside of each of the equipment necessary to Article as described in the It was installed.; The present invention has the effect that some improvement to be a high level processing, and is also excellent in cost-effective and also it is possible to increase the treatment effect enhanced water quality of the discharged water treatment capacity of conventional oxidation ditch.