Sweage water teatment plant by existing oxidation ditch for advanced treatment.

摘要

The subject innovation is a description of the oxidation ditch to the high level process of using a microorganism to react at a sewage treatment plant or a waste water treatment plant to remove nitrogen and phosphorus.; To provide advanced treatment devices that can be object of the present invention is to some modifications to the existing oxidation ditch already installed oxidation ditch to handle a separate internal transport facilities and the installation can be a highly processed without additional and more sewage anaerobic outside the intended.; Presented to the achievement of this purpose, blocking the partition wall in the middle of the vicinity of the oxidation ditch are already installed is formed as a continuous channel-shaped donut type through a central separation wall on the side of the partition wall form a circulation channel to circulate the mixed liquor of the oxidation site and the partition wall not on the side of the anaerobic tank with a stirrer required, anoxic tank, was to be formed to the denitrification tank, respectively, and penetrate each other to form a aerobic tank (nitrification tank) outside of the partition wall in the anoxic tank to the anaerobic tank and denitrification twos in the aerobic tank is respectively required amounts by the circulation possible to install a propeller pump and the inlet sewage was allowed to flow into the anaerobic tank and conveying sludge is introduced into the anoxic tank.; Anaerobic tank, in the anoxic tank, the denitrification tank is installed and the agitator was adjusted to prevent precipitation of the sludge and to promote the denitrification and dephosphorization effect.; The subject innovation is the rate at which simplifies the advanced treatment at the on-site existing oxidation and easily be carried out and do not have a separate site necessary portion can be solved in the past and it is also adjustable optionally quantity internal circulation remove nitrogen and phosphorous in the wastewater it is possible to improve and the effect that can increase throughput sewer.