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Up-flow sequencing batch bioreactor technology

A sequencing batch biological and reactor technology, applied in the field of removing organic pollutants, nitrogen and phosphorus, to achieve the effect of improving container utilization, increasing sludge concentration and volume load, and reducing inefficient space

Inactive Publication Date: 2015-04-29
侯双成
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the shortcomings of the current sequencing batch reactor, the present invention provides a biological treatment process with a combination of sequencing batch and upward flow, high sludge concentration, large volume load, and high volume utilization rate—upward flow sequence Batch Bioreactor Process

Method used

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Embodiment Construction

[0016] exist figure 1 Among them, the upper reflux device (8), circulation pump (10) and circulation pipeline (4) of the upward flow sequence batch bioreactor (1) are connected to the upward A bottom water distribution device (6) at the bottom of the reactor (7) of the sequential batch bioreactor (1). One or more of the three agitation forms of the rising liquid flow formed by the water inlet in different reaction stages, the rising liquid flow formed by the reflux of the upper liquid, and the upward channeling bubbles formed by the gas supply of the sequencing batch bioreactor oxygenation device (5) It can play the role of hydraulic stirring and important classification for the sludge particles in the reaction zone, and then affect the process of sludge granulation. The supernatant after fully reacting in the upward flow sequencing batch bioreactor (1) is discharged through the outlet pipe (3), and the sludge is discharged through the sludge discharge pipe (9) of the sequenc...

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Abstract

An up-flow sequencing batch bioreactor technology adopts a bottom water distribution device for water distribution and adopts backflow of an upper mixed solution to promote up-flow, so that sludge granulation is facilitated, the technology can be applied to granular sludge cultivation in a sewage disposal process, and the sludge concentration, the volume loading and the volume utilization rate are increased.

Description

technical field [0001] The invention relates to a sewage biochemical treatment process, in particular to removing organic pollutants, nitrogen and phosphorus from sewage. Background technique [0002] The current biological sewage treatment process can be roughly divided into two categories: continuous flow type and sequence batch type. Sequencing batch bioreactor is an activated sludge sewage treatment method consisting of several basic processes such as water intake, aeration, sedimentation, drainage and standby in the same reactor in chronological order. At present, the sequence batch bioreactor does not control the direction of the water flow in the reactor during the water inlet and aeration reaction stages, and the sludge is mainly flocculent sludge. The disadvantage is that the sludge has poor sedimentation and a small volume load. . Contents of the invention [0003] In order to overcome the shortcomings of the current sequencing batch reactor, the present invent...

Claims

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Application Information

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IPC IPC(8): C02F3/30C02F3/12
CPCC02F3/301C02F2101/30C02F2101/16C02F2101/105Y02W10/10
Inventor 侯双成
Owner 侯双成
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