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High-efficiency internal recycle ceramic-adhered biomembrane nitration reactor

A technology for nitrification reactors and attached organisms, which is applied in the field of high-efficiency internal circulation ceramic attached biofilm nitrification reactors, which can solve problems such as the inability to accumulate high-concentration biological cells, limit the efficiency of nitrification reactors, and slow growth of nitrifying bacteria, and achieve compact structure , high volumetric conversion efficiency, and good biological nitrification performance

Inactive Publication Date: 2012-01-25
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In recent years, this kind of reactor has been gradually applied to the nitrification process, but the growth of nitrifying bacteria is slow, and high concentrations of biological cells cannot be accumulated in the reactor under the general hydraulic retention time, which greatly limits the efficiency of the nitrification reactor

Method used

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  • High-efficiency internal recycle ceramic-adhered biomembrane nitration reactor

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Embodiment Construction

[0012] like figure 1 , 2 As shown in , 3, the high-efficiency internal circulation ceramic attached biofilm nitrification reactor is provided with a sedimentation circulation area I, an aeration reaction area II and a water distribution area III; Plate 3, inclined bottom plate 5; water outlet 1 is located at the top of the sedimentation circulation area I, and its position is higher than the isolation plate 2, and the isolation plate 2 divides the sedimentation circulation area I and the aeration reaction area II into two independent areas; the isolation plate 2 The bottom is connected with an air bubble baffle 3, whose width is the same as that of the isolation plate 2; the angle between the isolation plate 2 and the air bubble baffle 3 is 150°, and there is a gap between the air bubble baffle 3 and the inclined bottom plate 5, and the aeration reaction Zone II is filled with ceramic particles 4 and equipped with wire mesh panels 7; water distribution and gas distribution zo...

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Abstract

The invention discloses a high-efficiency internal recycle ceramic-adhered biomembrane nitration reactor. The reactor is provided with a precipitation recycle zone, an aeration reaction zone and a water distribution and gas distribution zone, wherein the precipitation recycle zone is provided with a waterspout, an isolating board, a bubble baffle and a slope baseboard; the waterspout is located on the top of the precipitation recycle zone, and the position of the waterspout is higher than that of the isolating board, and the precipitation recycle zone and the aeration reaction zone are divided into two dependant zones by the isolating board; the bottom of the isolating board is connected with the bubble baffle, the angle between the isolating board and the bubble baffle is 150 degrees, and a gap is reserved between the bubble baffle and the slope baseboard; ceramic particles are filled in the aeration reaction zone, and the aeration reaction zone is provided with an iron wire screen plate; the water distribution and gas distribution zone is provided with a water distribution pipe and a gas distribution pipe; and the precipitation recycle zone is communicated with the aeration reaction zone through the top of the isolating board and the bottom of the isolating board, and the aeration reaction zone is connected with the water distribution and gas distribution zone through a flange. According to the invention, the ceramic particle is used as a biomembrane carrier, so that a ceramic-adhered biomembrane is quickly precipitated, and biologic internal circulation is achieved by virtue of the unique structure of the precipitation recycle zone I.

Description

technical field [0001] The invention relates to a biofilm nitrification reactor, in particular to a high-efficiency internal circulation ceramic attached biofilm nitrification reactor. Background technique [0002] With the intensification of nitrogen pollution in the environment, the treatment of nitrogen-containing wastewater has received widespread attention, and biological nitrogen removal technology has become a research and application hotspot because of its high efficiency and low consumption. No matter in the traditional nitrification-denitrification process, or in the new anammox, short-cut nitrification-denitrification and other processes, the nitrification process is an indispensable and important link, and is often the rate-limiting step of the entire process. Therefore, the development of high-efficiency nitrification reactors has important practical significance for the biological denitrification of wastewater. [0003] The air-lift internal circulation biorea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/02
CPCY02W10/10
Inventor 郑平谢作甫
Owner ZHEJIANG UNIV
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