Fluidized biological rotary drum

Abstract

The invention discloses a fluidized biological rotary drum. The fluidized biological rotary drum comprises a shell, a rotary drum main body arranged in the shell, and an air blowing system and a driving device which are connected with the rotary drum main body, wherein the rotary drum main body is composed of a barrel-shaped framework, two shaft holes which are formed in the centers of end faces of two ends of the framework, a rotary drum shaft which penetrates through the two shaft holes and are integrated with the framework, two bearing seats which are arranged at two ends of the rotary drum shaft respectively, rotary drum outer walls which are fixed on a side wall of the framework and end faces of two ends of the framework, suspended packing filled into an outer wall of the rotary drum, and a packaging filling cover which is arranged on the outer wall of the rotary drum of the side wall of the framework and is fixed on the framework. According to the fluidized biological rotary drum disclosed by the invention, the energy consumption of the device can be reduced, the treatment efficiency of the device is improved and the operation management of the device is simplified; meanwhile, the working amount of maintenance is reduced.

Description

technical field [0001] The invention belongs to the field of sewage treatment, in particular to a fluidized biological drum. Background technique [0002] In the sewage treatment process, the biofilm method is a traditional biological treatment sewage process. The biofilm method uses the biofilm attached to the filler to contact the sewage to be treated. The microorganisms on the biofilm and the pollutants in the sewage and Oxygen is used for mass transfer, and the biological process of microorganisms is used to degrade the pollutants in the sewage, so that the sewage can be purified. At present, there are many kinds of mature biofilm methods, such as biological turntable, biological contact oxidation, biological filter, biological fluidized bed and MBBR. The fixed biofilm process has the problems of low hydraulic shear force, slow biofilm renewal, low oxygen and pollutant mass transfer efficiency; in the application process of the biological turntable, the rotation of the ...

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Problems solved by technology

However, the speed of the biological turntable is relatively small, the specific surface area is low, the renewal rate of the biofilm is low, the biofilm is easy to age, and the biodegradation efficiency is low.

Biological contact oxidation method, biological filter, biological fluidized bed and MBBR are different from biological turntables, and use aeration device to improve the renewal speed of biofilm on the filler, but the energy consumption is relatively large

[0003] Activated sludge method is a traditional method in sewage biological treatment technology. It has a good effect on removing organic matter. It can effectively remove N and P in sewage when combined with other processes. Large-scale sewage treatment plants use activated sludge method. Investment cost and operating cost In the operation of small-scale sewage treatment plants, this advantage cannot be realized

At the same time, the aerobic part of the activated sludge method must be aerated to supply oxygen, and there are disadvantages such as sludge aging, sludge bulking, and large sludge volume during the operation process. The operation and management are highly professional. Not suitable for use in processing

[0004] In small-scale township and rural sewage treatment, there is a phenomenon of lack of professional ability in the operation and management of sewage treatment plants and insufficient sewage treatment costs, resulting in the failure of some sewage treatment plants to operate normally and fail to achieve the desired effect

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