Anaerobic-aerobic baffled reactor

Abstract

The invention discloses an anaerobic-aerobic baffled reactor. The anaerobic-aerobic baffled reactor comprises a reactor body, wherein a plurality of baffles are arranged in the reactor body and divide the reactor body into 3-5 anaerobic chambers and a settling chamber; the upper parts of the anaerobic chambers and the settling chamber are communicated with each other; a water inlet is formed in the upper part of the anaerobic chamber at the end, and a water outlet is formed in the upper part of the settling chamber; baffle plates divide each anaerobic chamber and the settling chamber into upper flow chambers and lower flow chambers; the upper flow chambers are wider than the lower flow chambers but the lower flow chamber of an aerobic chamber is wider than the upper flow chamber and a porous aerator is arranged at the bottom of the lower flow chamber to fully contact aerated gas with the effluent to further aerate pollutants difficult to undergo anaerobic treatment; the settling chamber is wider than other chambers, thus being beneficial for further settling of the effluent and obviously reducing particulate matters in the effluent. The anaerobic-aerobic baffled reactor couples the anaerobic process with the aerobic process by using the idea of the baffle plates, and can reduce the floor area for sewage device treatment and improve the sewage treatment effect.

Description

technical field [0001] The invention relates to a treatment device belonging to organic waste water, in particular to an anaerobic-aerobic baffle reactor. Background technique [0002] The anaerobic digestion process can be divided into 3 stages: the first stage is the hydrolysis and acidification stage, the fermentation bacteria can decompose cellulose into polysaccharides, then hydrolyze into monosaccharides, decompose fats into glycerol and fatty acids, and decompose proteins into polypeptides and amino acids ; The second stage is the acetogenic stage, the acetogenic bacteria decompose the higher fatty acid into acetic acid and hydrogen; the third stage is the methanogenic stage, the methanogenic bacteria convert the acetic acid into CH 4 and CO 2 , or using H 2 and CO 2 produce CH 4 . In each stage of anaerobic biological treatment, the types of dominant flora are different, and the most suitable growth conditions are also different. The growth and reproduction of v...

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Problems solved by technology

[0005] The object of the present invention is to provide a kind of anaerobic-aerobic baffle reactor, the present invention is under the situation that does not increase extra aeration device, arranges aeration device inside the reactor and increases the width of the final water outlet cell so that The COD of the effluent is further reduced, reaching the discharge standard, and solving the technical problem that the effluent of the existing anaerobic baffle reactor does not meet the standard

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