Lifting combination aerating system applied to MBBR technology and installation method

Abstract

The invention discloses a lifting combination aerating system applied to a MBBR technology and an installation method, belongs to the technical field of sewage treatment equipment, and mainly aims tosolve the problem that in the prior art, the requirement of continuous production at a sewage plant cannot be met by a micropore aerating device. The lifting combination aerating system comprises a micropore aerating device, a hole-penetrating aerating device, and a bottom fixing device, and the hole-penetrating aerating device is arrange above the micropore aerating device, and fixed on the bottom fixing device by using hole-penetrating aerating supports; the bottom of the bottom fixing device is provided with a base for support and counterweight, the two sides of the bottom fixing device areprovided with uprights, and a crane and other hoisting machineries are used for hoisting the combination aerating system to a precalculated position, and slowly putting down the bottom of a pool through a sliding track; and finally, an aerating upright pipe and an aerating upright pipe fixing part are connected through a flange. According to the lifting combination aerating system applied to theMBBR technology and the installation method, installation can be conducted under the condition of regular production operation of the sewage treatment plant, enough dissolved oxygen is provided for microorganism, and at the same time, even fluidization of suspended biofilm carriers is ensured.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment equipment, and in particular relates to a liftable combined aeration system and an installation method suitable for the MBBR process. Background technique [0002] In order to improve the removal effect of pollutants in sewage, many sewage treatment plants adopt the MBBR process, and attach microorganisms by adding suspended biofilm carriers in the biological pool, which improves the removal rate of pollutants. In order to provide the oxygen required for microorganisms to remove pollutants , it is necessary to install a microporous aeration device in the biological pool; in order to ensure that the suspended biofilm carrier is fully fluidized, it is necessary to install a perforated aeration device in the biological pool. [0003] Application number 201821102971.7 discloses an integrated equipment for domestic sewage treatment, which includes an anaerobic tank, a contact oxidation tank, a...

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Problems solved by technology

[0004] At present, the microporous aeration devices in the prior art are mainly fixed installations. When the microporous aeration devices are installed or overhauled, the sewage in the biological pool needs to be emptied first. The installation or overhaul costs are high, the cycle is long, and the efficiency is low. , which cannot meet the continuous production needs of sewage plants; although some liftable microporous aerators can avoid the adverse effects of sewage emptying, they cannot guarantee the fluidization of suspended biofilm carriers, which affects the removal effect of pollutants

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