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Nitration denitrification integral type sewage denitrification biomembrane reactor

A nitrification, denitrification, and reactor technology, applied in the field of environmental protection, can solve the problems of inconvenient management and operation, large floor space, and additional carbon sources, and achieve the effects of no dead ends, low power consumption, and strong metabolism.

Inactive Publication Date: 2008-08-13
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these reactors still have disadvantages such as large footprint, high energy consumption, need for external carbon source, and inconvenient management and operation.

Method used

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  • Nitration denitrification integral type sewage denitrification biomembrane reactor

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Embodiment 1

[0026] The reactor is a rectangular parallelepiped as a whole and consists of two parts. The lower part is a flat cylinder, which is the aeration reaction zone 11. The aeration reaction zone 11 is attached to the suspended packing 7. The biofilm system on the suspended packing 7 is conducive to the reproduction of the long-generation nitrifying bacteria group. There are three aeration tubes 8 at the upper middle of the bottom of the gas reaction zone 11, and a circular communication hole 12 is opened in half of the arc-shaped plate on the upper part of the cylinder, so as to facilitate the airflow inside the reactor to push the suspended filler into a flowing state. , to prevent gas short flow, can effectively degrade organic matter, and oxidize ammonia nitrogen to nitrate nitrogen, and the internal anoxic and anaerobic microenvironment enables biofilm to perform part of the denitrification function. The bottom of the aeration reaction zone 11 is provided with an air inlet 9 a...

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Abstract

The invention discloses a column-shaped denitrifying reactor through integrated nitrated and denitrificated biological film method in the environmental protective technique domain, which comprises the following parts: water collecting system, aerating reacting region, anaerobic region and sediment region, wherein the aerating reacting region is full of suspension fill with aerating pipe on the bottom; the gas inlet and water outlet are opened on the bottom; the gas inlet connects aerating pipe with top opening interconnecting hole; the peole-shaped mud baffle board is set in the sediment region with hole on the top, which connects one end of gas collecting pipe; the other end of gas collecting pipe pierces the water collecting system; the mud drainage valve lies on one side of sediment region under the mud baffle board; the bottom of water collecting system possesses overflow dam with water drainage pipe on one side; the sampling valve is set around aerating reacting region and sediment region.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a nitrification and denitrification integrated biofilm denitrification reactor. Background technique [0002] The denitrification rate of urban sewage after secondary treatment is only 20-50%, and the total nitrogen content of the effluent is high, which has brought great pressure to our country's environmental pollution. Excessive nitrogen in drinking water directly threatens human health. Therefore, before being discharged into receiving water bodies, industrial wastewater and domestic sewage must undergo strict denitrification treatment to meet safe discharge standards. The traditional denitrification process is realized through two independent processes of nitrification and denitrification, respectively, by nitrifying bacteria and denitrifying bacteria in different reactors (in space), or in the same reactor to produce intermittent aerobic nitroge...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30
Inventor 王荣昌李俊英夏四清赵建夫
Owner TONGJI UNIV
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