Method for quickly starting pre-denitrification biological aerated filter process

Abstract

The invention discloses a method for quickly starting a pre-denitrification biological aerated filter process, belongs to the field of sewage treatment, and solves the problem that the conventional pre-denitrification biological aerated filter process consumes long time to culture pre-denitrification flora so as to result in over-long starting time. The method for quickly starting the pre-denitrification biological aerated filter process adopts the following mode: firstly, forming biofilm; secondly, emphasizing on culturing naturalized nitrobacterium; and finally culturing naturalized denitrified bacteria. Therefore, the acclimation link is saved, the acclimation time is shortened, and the debugging cost is reduced. The method can rapidly culture the denitrified bacteria in an anoxic denitrification biological aerated filter in the pre-denitrification biological aerated filter process and finish the debugging for putting into use as soon as possible. Due to the adoption of the method,the effluent of the pre-denitrification biological aerated filter process can be debugged to reach the standard in 120 to 140 days.

Description

technical field

[0001] The invention belongs to the field of sewage; in particular, it relates to a method for quick start-up of a pre-denitrification aerated biological filter process.

[0002] Background technique

[0003] The pre-denitrification biological filter process occupies a small area, has high treatment effect and low operating cost, and is a promising sewage treatment process. However, it takes a long time to cultivate denitrifying bacteria (it usually takes more than half a year to cultivate denitrifying bacteria), which prolongs the start-up time.

[0004] Contents of the invention

[0005] The purpose of the present invention is to solve the problem of too long start-up time caused by the time-consuming cultivation of denitrifying bacteria in the existing pre-denitrification biological filter process; and to provide a method for rapid start-up of the pre-denitrification biological aerated filter process.

[0006] Among the present invention, the method th...