High concentration organic wastewater treatment system combining biofilm fermentation tank and anaerobic, anaerobic and aerobic tank

摘要

1. TECHNICAL FIELD OF THE INVENTION;The present invention relates to a high concentration organic wastewater treatment system.;2. The technical problem to be solved by the invention; The present invention provides a high-concentration organic wastewater treatment system that can more efficiently treat wastewater with high inflow fluctuations by making it possible to efficiently and efficiently treat nutrients while at the same time complementing the disadvantages of the anaerobic digestion process used in conventional high-concentration organic wastewater treatment. To provide.;3. Summary of Solution to Invention;The present invention, in the high concentration organic wastewater treatment system, the high-concentration organic wastewater is acid-fermented in a biofilm fermentation tank to induce fatty acid production and use it as a resource for the stable removal of nitrogen and phosphorus in the anaerobic-oxygen-aerobic tank which is a subsequent process It features.;Accordingly, the present invention is a biofilm fermentation tank for producing a volatile fatty acid by primary fermentation of influent organic matter and acid fermentation of high concentration organic wastewater; An anaerobic tank for releasing phosphorus using volatile fatty acids produced in the biofilm fermentation tank; An oxygen-free tank for inducing denitrification of nitric acid and nitrous acid introduced through the inner conveying line from the following aerobic tank using the untreated organic material introduced from the biofilm fermentation tank as a carbon source; An aerobic tank which removes phosphorus by removing organic substances and nitrifying the phosphorus released from the anaerobic tank; A settling tank separating the inflow water transferred from the aerobic tank into supernatant water and microbial sludge; And an aerobic phase for introducing the supernatant separated from the sedimentation tank to remove residual organic matter and to discharge stable effluent.;4. Important uses of the invention;It is used in stable wastewater treatment system of organic wastewater.;Biofilm fermentation tank, volatile fatty acid, recycled aggregate, acid fermentation, denitrification, aerobic phase