Miniature no-decanter SBR integrated sewage processing system

Abstract

The invention discloses a miniature no-decanter SBR integrated sewage processing system. The miniature no-decanter SBR integrated sewage processing system comprises a control apparatus, an equalizing tank, a device room, a SBR reaction tank and a clean water tank; a sewage elevator pump and an aeration apparatus are arranged in the device chamber, an inlet of the sewage elevator pump is communicated with the bottom of the equalizing tank, the outlet of the sewage elevator pump is communicated with the upper part of the SBR reaction tank; the aeration apparatus is communicated with the SBR reaction tank; a center water distributor is arranged in the SBR reaction tank, the center water distributor and the water outlet of the elevator pump are communicated; an downcast pipe is arranged between the equalizing tank and the SBR reaction tank, a downcast electrically operated valve is arranged on the downcast pipe; the control apparatus is used for controlling the sewage elevator pump, the aeration apparatus and the downcast electrically operated valve. The sewage is sent to the bottom of the SBR reaction tank by the center water distributor, at the same time, the water at the upper part of the SBR reaction tank is discharged to a clean water tank, so that SBR sewage treatment of a no-decanter is realized. An integrated design of the equalizing tank, the device chamber, the SBR reaction tank and the clean water tank is employed, so that the process flow is shortened, land occupation area is small, and the construction cost is low.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a small decanter-less SBR integrated sewage treatment system. Background technique [0002] SBR is the abbreviation of Sequenced Batch Activated Sludge Process, which is an activated sludge sewage treatment technology operated by intermittent aeration. The water outlet method of the SBR reaction tank has always been a difficult problem in the actual engineering application. The SBR reaction tank uses a decanter to discharge water. When the decanting is completed, there is no sewage water, and water cannot enter the biochemical tank. The water level in the tank is changing, not constant. It affects the life of the blower, the blower is not always in the best working condition, easy to break. In addition, the decanter is difficult to seal, easy to leak, the flow velocity at the weir mouth is high, and the SS of the water outlet is high, so it is difficult to meet the sta...

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Problems solved by technology

[0003] In order to solve the above technical problems, the present invention provides a small-scale non-decanter SBR integrated sewage treatment system to solve the problem of difficult sealing of the decanter in the existing SBR reaction tank, easy water leakage, high weir flow rate, high SS of the effluent, and difficulty in reaching the standard. The problem of short blower life

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