Anoxic bioreactor

Abstract

The invention provides an anoxic bioreactor which is divided into a strong fluidization region, a weak fluidization region and a sludge-water separation region, wherein the strong fluidization region and the weak fluidization region share one lower outer shell; the strong fluidization region is positioned on the lower part of the reactor, and is connected with the weak fluidization region through a strong fluidization region perforated column plate; the weak fluidization region is positioned on the middle part of the reactor, and comprises a partition, a sprayer, a weak fluidization region guide shell and a weak fluidization region perforated column plate; the center of the partition is provided with a hole; the sprayer is in a flared shape, the bottom of the sprayer is connected with the partition through the hole at the center of the partition, and the top of the sprayer extends into the region between the bottom plane and the middle part of the weak fluidization region guide shell; the weak fluidization region perforated column plate is positioned on the top of the weak fluidization region; the partition, sprayer, weak fluidization region guide shell and weak fluidization region perforated column plate are positioned on one axial line from bottom to top; and the sludge-water separation region is positioned on the top of the reactor. The bioreactor can effectively reduce the height of the guide shell and lower the fluidization energy consumption, and is beneficial to industrialization of equipment.

Description

technical field [0001] The invention belongs to the field of environmental protection, and relates to an anoxic bioreactor, which is mainly used for treating petrochemical sewage and light industrial sewage. Background technique [0002] With the development of my country's urban scale and the continuous improvement of the degree of industrialization, a large amount of difficult-to-treat industrial and domestic sewage is produced. Sewage treatment plants are facing severe challenges, especially in the field of industrial sewage treatment, which has a large amount of sewage discharge, complex water quality and high toxicity. , Ammonia nitrogen and COD are relatively high. The traditional sewage treatment process has low efficiency, long process, high investment and operating costs. [0003] The biofluidized bed reactor has a large height-to-diameter ratio, a small footprint, and the reactor is in an internal circulating fluidized state. The sewage treatment efficiency is high...

AI Technical Summary

Problems solved by technology

[0007] The invention provides an anoxic bioreactor to overcome the shortcomings of high energy consumption and difficult industrialization of traditional biological treatment technology

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