Low-carbon energy-saving sewage treatment system

Abstract

The invention discloses a low-carbon energy-saving sewage treatment system and belongs to the technical field of sewage treatment. The sewage treatment system comprises an adjusting tank, an anaerobictank, an anoxic tank, an aerobic tank, a membrane biological reaction tank, a sludge tank and a clean water tank, and further comprises a clean water conveying mechanism. The clean water conveying mechanism comprises a water pumping cavity, a push rod, a connecting frame, an upper sealing disc, an upper driving air cylinder, a water pumping channel, a lower sealing disc, a lower driving air cylinder, a sealing piston and a driving device. The lower sealing disc is movably connected to the water pumping cavity, and the lower driving air cylinder is used for driving the lower sealing disc to rotate on the water pumping cavity so that the water pumping channel can be opened or closed. The driving device is used for driving the push rod and the sealing piston to move up and down in the waterpumping cavity, the upper sealing disc is movably connected to the sealing piston, and the upper driving air cylinder is used for driving the upper sealing disc to rotate on the sealing piston to openor close the center hole. A water feeding channel is formed on one side of the upper part of the water pumping cavity. The system has the advantages of low carbon, energy conservation, high sewage treatment quality, convenience in backwashing and the like.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, more specifically, it relates to a low-carbon and energy-saving sewage treatment system. Background technique [0002] Sewage treatment refers to the process of purifying sewage to meet the water quality requirements for discharge into a certain water body or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, catering, etc., and it is also increasingly entering the daily life of ordinary people. [0003] The authorized announcement number is CN206901993U, and the authorized publication date is January 19, 2018. The Chinese patent discloses an integrated MBBR sewage treatment equipment, including sequentially connected anaerobic tank, anoxic tank, aerobic tank and sedimentation tank. [0004] The disadvantage of the prior art is that clear water an...

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Problems solved by technology

[0004] The disadvantage of the prior art is that clear water and sludge are stratified in the sedimentation tank, the upper layer is clear water, and the lower layer is sludge. However, since the clear water and sludge have a certain dispersion effect in the sedimentation tank, even in a steady state environment, The stratification effect of clean water and sludge in the sedimentation tank is difficult to control, so the separation of clear water and sludge by gravity settlement alone cannot obtain a good stratification effect, and the clear water often contains activated sludge and other other substances. Impurities, the sewage treatment effect is poor, not suitable for the conditions of high sewage treatment quality requirements

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