A kind of nitrogenous wastewater treatment method

Abstract

The invention relates to the technical field of wastewater treatment, and in particular to a method for treating nitrogen-containing wastewater, which includes the following steps: pre-processing the nitrogen-containing wastewater; injecting the pre-treated nitrogen-containing wastewater into a biochemical unit, which is provided with a Microbial filler and activated sludge, the microbial filler contains domesticated microbial colonies; the nitrogen-containing wastewater is treated in the biochemical unit, and during the process of treating the nitrogen-containing wastewater, at least part of the microbial filler is driven to vibrate; Water drains. This nitrogen-containing wastewater treatment method does not require the input of carbon sources and aeration devices during the wastewater treatment process, and effectively avoids pipeline blockage and the occurrence of flow dead zones.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a nitrogen-containing wastewater treatment method. Background technique [0002] The current industrial development is rapid, and the accompanying environmental pollution is also becoming more and more serious. The treatment of many industrial wastewaters has become a major problem, especially in the face of nitrogen-containing wastewater, especially high-concentration nitrogen-containing wastewater. Reaching the standard also requires high treatment costs, and the traditional treatment method occupies a large area, has low treatment efficiency and complicated process. [0003] The traditional wastewater denitrification method is generally AAO. This method first needs to degrade the refractory substances in the nitrogen-containing wastewater, and then treat the nitrogen-containing wastewater by inputting carbon sources and reflux. In this method, carbon sources need...

AI Technical Summary

Problems solved by technology

In this method, carbon sources need to be invested, and the cost of carbon sources is high; reflux is required, and a high proportion of reflux is likely to affect the structure of the bacterial flora in the previous section and cause fluctuations in dissolved oxygen in each section, affecting the state of the anaerobic tank; Setting up a high-power aeration device requires high energy consumption; at the same time, problems such as pipeline blockage or flow dead zone are prone to occur in each reaction tank, and the operating conditions are not good