A Counterflow Sieve Tray Column Internal Circulation Bioreactor

Abstract

The invention relates to a reverse flow sieve plate tower type internal circulating bioreactor. The bioreactor comprises a reaction box arranged at the upper part and a circulating water tank arranged at the lower part; a circulating water inlet is formed in the bottom of the reaction box; a circulating water outlet is formed in the top of the reaction box, and is externally connected and communicated with a circulating pipe inside the circulating water tank; staggered partitions are arranged in the reaction box, and used as carriers for enriching biological membranes or microbes; a submersible pump is arranged in the circulating water tank; the outlet of the submersible pump is communicated with the circulating water inlet; through the driving of the submersible pump, a water solution upwardly flows through all channels in the reaction box one by one in a baffling manner, and then flows back to the circulating water tank from the circulating water outlet in the top in a circulating manner to form the internal circulating bioreactor. The bioreactor comprises the upper part and the lower part, and is convenient to manufacture and mount, and small in occupied space; in addition, the left and right staggered partitions are horizontally arranged to facilitate the attachment of the biological membranes, so that the biological membrane quantity of the bioreactor is increased, and wastewater treatment is facilitated.

Description

technical field [0001] The invention relates to a bioreactor, in particular to a counterflow sieve plate tower type internal circulation bioreactor. Background technique [0002] With the country's increasing requirements for urban domestic sewage treatment and discharge, it is difficult for most traditional domestic sewage treatment technologies and facilities to meet this requirement. The main reason is that nitrogen in water is difficult to be effectively removed. Generally speaking, the removal of nitrogen in water needs to go through nitrification and denitrification processes, and the corresponding reactor conditions must ensure the existence of aerobic and anoxic zones at the same time. However, in terms of design and operation, conventional reaction devices are not easy to realize the simultaneous existence of aerobic and anoxic. [0003] In order to improve this deficiency, Chinese patent CN 103395874A discloses an improved structure of a baffled internal circulat...

AI Technical Summary

Problems solved by technology

However, the baffled biofilm reactor disclosed in this patent has the disadvantages of large floor space and small biomass due to the fact that the biofilm is easy to fall off in practical application.

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