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Superhigh-efficiency anammox reactor

An anaerobic ammonium oxidation and reactor technology, applied in the field of reactors, can solve problems such as insurmountable defects, and achieve the effects of not being easily blocked, reducing matrix toxicity, and improving sludge activity

Active Publication Date: 2012-03-28
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These reactors do not overcome the inherent drawbacks of the ANAMMOX process described above

Method used

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Embodiment

[0020] Example: The ultra-efficient anammox reactor is composed of plexiglass, the diameter of the reaction zone is 10cm, the height is 1m, and the volume is 8L; the diameter of the precipitation zone is 20cm, the height is 34.7cm, and the angle α between the outer cylindrical divergent tube and the reference horizontal plane is 60°, the total volume of the precipitation zone is 8L. The ring-shaped barbed wire has a diameter of 0.5mm, a mesh diameter of 1mm, a diameter of the first gas collecting pipe of 3cm, a diameter of the second gas collecting pipe of 1.5cm, a maximum diameter of the first reducing pipe of 15cm, a maximum diameter of the second reducing pipe of 6cm, and reduced iron powder particle size 100 mesh, the dosage is 1% of the volume of the reaction zone. To simulate the inflow of wastewater, the composition of wastewater: 200mg / L ammonia nitrogen, 240mg / L nitrous nitrogen, and the rest are inorganic nutrients. The operating temperature of the reactor is 35°C, t...

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Abstract

The invention discloses a superhigh-efficiency anammox reactor, which is provided with a sediment zone, a reaction zone and a bracket. The sediment zone is sequentially provided with a first outer cylinder, an overflow weir, a water outlet, a backflow port, an annular wire netting and a two-stage three-phase separator from top to bottom. The two-stage three-phase separator comprises a first gas collecting tube, a first reducing pipe, a second gas collecting tube and a second reducing pipe. The overflow weir is communicated with the water outlet, the backflow port is positioned between the overflow weir and the annular wire netting, the inner ring of the annular wire netting is connected with the outer wall of the first gas collecting tube, and the outer ring of the annular wire netting isconnected with the inner wall of the first cylinder. The reaction zone comprises a second outer cylinder, an iron powder carrier, a water inlet tube and a hemispheroid. The reaction zone is connectedwith the sediment zone through an outer cylinder increasing coupling and is directly connected with the bracket, and both the reaction zone and the sediment zone are provided with dredge pipes. The invention effectively prevents sludge loss, reduces gas disturbance, promotes the natural sedimentation of granules, reduces the toxicity of the base material and ensures the operating performance of the reactor to be efficient and stable.

Description

Technical field [0001] The invention relates to a reactor, in particular to an ultra-efficient anaerobic ammonia oxidation reactor. Background technique [0002] With the acceleration of the process of industrialization, the discharge of nitrogenous wastewater has increased sharply, making surface water bodies face severe eutrophication problems, and seriously threatening the healthy survival of humans and organisms. At present, nitrogen treatment mainly relies on biological treatment technology represented by traditional nitrification and denitrification processes. However, the process load is low, the sludge output is large, and the treatment cost is high. [0003] In recent years, a number of new processes represented by anammox have emerged in biological denitrification treatment. Their main characteristics are high load and low operating cost, making them the most valuable wastewater denitrification technology. At present, the anammox process has been successfully applied t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28
Inventor 郑平陈建伟
Owner ZHEJIANG UNIV
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