Integration device for sewage treatment bio-diatomite suspension filter bed

A technology for suspension filtration and sewage treatment, which is applied in the fields of filtration and separation, gravity filter, aerobic and anaerobic process treatment, etc. It can solve the problems of high operation and management cost and complicated treatment process

Active Publication Date: 2013-04-24
TONGJI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Anoxic, anaerobic and aerobic processes have the advantages of high treatment efficiency, and the treatment effect is less affected by the fluctuation of influent water quality and water volume. Disadvantages such as high management costs

Method used

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  • Integration device for sewage treatment bio-diatomite suspension filter bed
  • Integration device for sewage treatment bio-diatomite suspension filter bed
  • Integration device for sewage treatment bio-diatomite suspension filter bed

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Embodiment

[0047] Please refer to figure 1 with figure 2 , provides an integrated device for sewage treatment biological diatomite suspension filter bed, which is described in detail to facilitate the understanding of technical personnel.

[0048] The sewage treatment biological diatomite suspension filter bed integrated device generally includes: anoxic section 33 , anaerobic section 32 , aerobic section 31 , solid-liquid separation section 30 and forced balance section 27 . Before the anoxic section 33, a hydraulic retention section is usually provided for pre-settling the sewage. Each section is described in detail below.

[0049] Anoxic section 33 is used to complete the denitrification denitrification process of nitrate nitrogen in the reflux mixed liquid; since denitrification requires carbon source, high-quality carbon source can be obtained after mixing with influent water for denitrification reaction.

[0050] The anaerobic section 32 is used to complete the anaerobic phosph...

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Abstract

The invention provides an integration device for a sewage treatment bio-diatomite suspension filter bed. The integration device comprises an anoxic section, an anaerobic section, an aerobic section, a solid-liquid suspension filter separation section and a forced balance section, wherein a gas-water separation section is arranged between the aerobic section and the solid-liquid suspension filter separation section; the aerobic section is provided with a forced stirring guide plate which comprises an upper section, a middle section and a lower section; and compared with the upper and lower sections, the middle section is narrower than one side surface of the aerobic section, so that the ascending velocity of water flow is accelerated. A concentration diffusion communicating groove is formed in the solid-liquid suspension filter separation section and is used for leading the concentrated solution of the bio-diatomite suspended solid from the suspension filter bed; and the bio-diatomite suspended solid layer is stabilized around the height of the concentration diffusion communicating groove. The forced balance zone is arranged at the rear end of the solid-liquid suspension filter separation section; the bio-diatomite suspended solid enters the forced balance section by the concentration diffusion communicating groove; and the bio-diatomite suspended solid is reflowed to the front at the bottom of the forced balance zone by a reflowing pipeline at the bottom of the forced balance section so as to be recycled.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to an integrated device for sewage treatment biological diatomite suspension filter bed. Background technique [0002] At present, the discharge of urban domestic sewage is the main pollution source of urban water. Urban domestic sewage treatment is the top priority of urban water conservation and urban water environment protection at present and in the future. This requires us to take the construction of domestic sewage treatment facilities as a city An important part of the infrastructure, and it is a matter of urgency. [0003] Microorganisms use diatomite particles as carriers to form colonies with diatomite particles as the core. Diatomite colonies form large diatomite bacteria micelles through the action of microbial capsules and surface mucus, which is called Bio-diatomite (BD). The application of bio-diatomite to the anoxic / aerobic process of sewage treatment is called bio-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30B01D24/28
Inventor 曹达文金伟董秉直吴效祥蔺嘉梅邹敏
Owner TONGJI UNIV
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