Sludge collection system of sewage treatment biochemical tank

Abstract

A sludge collection system of a sewage treatment biochemical tank comprises a sedimentation tank and a clarification tank, wherein a sedimentation tank sludge collection hopper is arranged at the bottom of the sedimentation tank, a clarification tank sludge collection hopper is arranged at the bottom of the clarification tank, the bottom of the sedimentation tank sludge collection hopper is provided with a perforated sludge discharging pipe, one end of the perforated sludge discharging pipe is communicated with the sedimentation tank sludge collection hopper, the other end of the perforated sludge discharging pipe is communicated with a backflow sludge tank, and a part, positioned in the sedimentation tank sludge collection hopper, of the perforated sludge discharging pipe is provided witha plurality of holes; a sludge discharge pipe is arranged at the bottom of the clarification tank sludge collection hopper, one end of the sludge discharge pipe is communicated with the clarificationtank sludge collection hopper, and the other end of the sludge discharge pipe is communicated with a sludge discharging tank; and a slurry pump is arranged in the sludge discharge tank, and the slurry pump is used for pumping sludge to a sludge storage tank; and a return sludge tank is internally provided with a water collecting tank which is communicated with a sludge return pipe. The sludge collection system effectively solves the problems of unsmooth sludge collection in the tank body, difficult construction of the sludge collection hopper, high construction cost and troublesome operationand maintenance.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to a sewage treatment biochemical pool sludge collection system. Background technique [0002] With the continuous development of urbanization, the deterioration of environmental pollution has been accelerated. With the introduction of the "Water Ten Measures", all localities have increased the intensity of water area management, and adopted measures such as source control and sewage interception to collect and discharge sewage to sewage treatment plants for treatment. Therefore, my country's water treatment industry is also accelerating the development and research of new technologies according to the development needs of the environment to meet the increasingly severe environmental requirements. [0003] In the sewage treatment process, sludge will be generated during clarification and sedimentation. The sludge is generally collected by mud hoppers. The bottom of the mud...

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Problems solved by technology

[0004] In view of the technical problems existing in the background technology, the sewage treatment biochemical pool sludge collection system provided by the present invention effectively solves the problem of unsmooth sludge collection in the pool body, difficult construction of sludge collection buckets, high construction costs and problems in operation and maintenance. troublesome question

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