Continuous flow SBR domestic sewage treatment method and device

Abstract

The invention discloses a continuous flow SBR domestic sewage treatment method and a device. The device comprises a reaction container, partition plates, a drainage mechanism, a water inlet pipe, an aeration device and a control mechanism; the interior of the reaction container is divided into at least four reaction areas by the partition plates, and the four reaction areas comprise a first reaction area, a second reaction area, a third reaction area and a fourth reaction area; the bottoms of the reaction areas are communicated with each other, the water inlet pipe is longitudinally mounted inthe middle in the reaction container, and the lower end of the water inlet pipe is communicated with the lower ends of the reaction areas. The method comprises the following steps: water introductionstage, aeration stage, precipitation stage, continuous water introduction stage, and continuous water discharge stage. According to the method, the traditional SBR reaction container is subjected tospace division, the continuous flow process design is achieved through the water level pressure difference, the water inlet pipe is arranged in the middle of the reaction container for unified water inflow, the automatic control procedure is simplified, meanwhile, an anoxic stirring link is omitted, and the treatment period is shortened on the premise that it is guaranteed that effluent reaches the fifth type of water on the earth surface.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a continuous flow SBR domestic sewage treatment method and device. Background technique [0002] SBR is the abbreviation of Sequencing Batch Reactor Activated Sludge Process (Sequencing Batch Reactor Activated Sludge Process), which is an activated sludge sewage treatment technology operated by intermittent aeration, also known as sequencing batch activated sludge process. [0003] Sequence Batch Reactor Activated Sludge Process (SBR, Sequencing Batch Reactor Activated Sludge Process) is a domestic sewage treatment process. Different from the traditional activated sludge process that uses space segmentation to treat sewage, SBR passes "water inflow - reaction - precipitation - effluent - idle "The five stages divide the time, and the sewage treatment is carried out in a container in an orderly manner. [0004] In the SBR system, in the water inlet stage, the sewage ente...

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Problems solved by technology

[0007] (1) Separate valves are required for multi-point water intake, and the water outlet cannot achieve self-flow, requiring a pump, and the pipe network is complicated;

[0008] (2) Multiple groups of SBRs alternately discharge water, the control is complicated, the requirements for automatic control are high, and the management and maintenance are difficult;

[0009] (3) The design is complex, the construction period is long and the cost is high

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