Apparatus and method for nitrogen removal by combining garbage leachate SBR and anaerobic ammoxidation

Abstract

The invention relates to an apparatus and a method for nitrogen removal by combining garbage leachate SBR and anaerobic ammoxidation, which belongs to the low carbon nitrogen (CN) ratio high density ammonia nitrogen garbage leachate biological denitrogenation technical field. The apparatus comprises an integrated water tank, a SBR short distance nitrated reactor and an anaerobic ammoxidation reactor; a preposition water tank and a postposition water tank in the integrated water tank are communicated with a peristaltic pump and the SBR short distance nitrated reactor, the postposition water tank is connected with the bottom of the anaerobic ammoxidation reactor through the outlet pipe and the peristaltic pump, an self-circulation pipeline is provided on the anaerobic ammoxidation reactor, and is connected with the SBR preposition water tank through the outlet pipe and the peristaltic pump. The method comprise the following steps starting the SBR short distance nitrated reactor, starting the anaerobic ammoxidation reactor, and an operation is in series of the SBR short distance nitrated reactor and the anaerobic ammoxidation reactor is carried out. The apparatus of the present invention is suitable for organic matter removal and short distance nitrogen removal of the garbage leachate at late period in the garbage landfill, the process is advanced, and the advantages of energy saving and consumption reduction is obvious.

Description

technical field [0001] The invention relates to a combination denitrification device and method of landfill leachate SBR and anaerobic ammonium oxidation, which belongs to the technical field of biological denitrification of waste water with low carbon-to-nitrogen (C / N) ratio and high concentration of ammonia nitrogen, and is suitable for low-C waste water such as late-stage landfill leachate. / N ratio of high ammonia nitrogen wastewater biological nitrogen removal. Background technique [0002] In recent years, with the increasing output of municipal solid waste, landfilling has gradually become the most widely used treatment and disposal method in the world. The leachate produced by landfill has the characteristics of complex composition, large changes in water quality and quantity, high concentration of organic matter and ammonia nitrogen, and imbalance of microbial nutrient elements, making its treatment one of the unsolved problems in the international scope. It is oft...

AI Technical Summary

Problems solved by technology

But for high NH 4 + For denitrification of landfill leachate in late-N stage, the C / N ratio is only about 1. Due to the serious shortage of organic carbon sources, the efficiency of traditional biological denitrification can only reach about 10%.

Images