Novel efficient anaerobic bioreactor

Abstract

The invention discloses a novel efficient anaerobic bioreactor which is characterized by comprising a reactor body (10), wherein a lateral inflow water distributor (1) is arranged on one side of the reactor body (10); a lower supporting bed (2) is arranged at the lower part of each baffled reactor in the reactor body (10); flowing biological stuffing layers (3) are formed between upper limiting layers (4) and lower supporting beds (2); a pulse water distributor (5) is arranged at the top of each baffled reactor in the reactor body (10); and the water outlet of an effluent weir (6) of the reactor is connected with the pulse water distributors (5) through a backflow water pump (7). The novel efficient anaerobic bioreactor has the advantages of convenience in running and maintenance, small maintenance amount and high processing capability. The hydraulic stirring in each reaction chamber can be changed by adjusting the water inflow of pulse water distribution in each reactor, so that a hydraulic environment needed by each stage of reaction of an anaerobic reaction can be better created.

Description

technical field [0001] The invention relates to sewage treatment equipment and belongs to the technical field of sewage treatment. Background technique [0002] The Anaerobic Baffled Reactor (ABR) process was first developed and developed by McCarty of Stanford University in the United States in 1981 on the basis of summarizing the characteristics and performance of various second-generation anaerobic reactors. Efficient new anaerobic sewage biotechnology. Since a series of vertically installed baffles are used in the reactor to divide the reactor into several reaction chambers in series, each reaction chamber can be regarded as a relatively independent upflow sludge bed system (upfLow sLudge bed, Abbreviated as USB). The treated wastewater flows up and down along the baffles in the reactor, and passes through the sludge bed of each reaction chamber in turn, and the organic matrix in the wastewater is removed by contacting with microorganisms. With the help of the gas gen...

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Problems solved by technology

[0003] The existing anaerobic baffle reactor has been found to have the following problems after operation. In order to ensure a certain water flow and gas production rising speed, the ABR reactor should not be too deep, and how to evenly distribute the influent is also a problem

Compared with the single-stage UASB reactor, the first cell of the ABR reactor has to bear a local load much greater than the average load, which may lead to a decrease in treatment efficiency. It is found through operation that the existing shock load resistance to high-concentration wastewater Not strong, the activated sludge in the reactor has excessive deposition, and the hydraulic stirring is not uniform

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