A kind of nitrogenous wastewater treatment method

Abstract

The invention relates to the technical field of waste water treatment, in particular to a nitrogen-containing waste water treatment method. The nitrogen-containing waste water treatment method comprises the following steps: performing pretreatment on nitrogen-containing waste water; injecting the nitrogen-containing waste water subjected to pretreatment into a biochemical unit and setting microbial fillers and active sludge in the biochemical unit, wherein the microbial fillers comprise domesticated microbial colony; treating the nitrogen-containing waste water into the biochemical unit and driving at least part of the microbial fillers in the process of treating the nitrogen-containing waste water to generate vibration; and discharging the water which reaches the standard through treatment. According to the nitrogen-containing waste water treatment method, a carbon source does not need to be put in the process of treating the waste water, an aeration device is not needed, and pipelineblockage and occurrence of a flowing dead area are effectively avoided.

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