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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 easy to clog, reducing matrix toxicity, and improving sludge activity

Active Publication Date: 2010-10-20
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-high-efficiency anaerobic ammonium oxidation 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 sedimentation zone is 20cm, the height is 34.7cm, and the angle α between the outer cylindrical expander and the reference horizontal plane is 60°, the total volume of the precipitation area is 8L. The wire diameter of the circular barbed wire is 0.5mm, the grid diameter is 1mm, the diameter of the first air collecting pipe is 3cm, the diameter of the second air collecting pipe is 1.5cm, the maximum diameter of the first reducing pipe is 15cm, the maximum diameter of the second reducing pipe is 6cm, the particle size of the reduced iron powder 100 mesh, the dosage is 1% of the volume of the reaction zone. The simulated wastewater is used as inflow, and the composition of the wastewater is: ammonia nitrogen 200mg / L, nitrite nitrogen 240mg / L, and the rest are inorganic nutr...

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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 is connected 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 connected with 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 ammonium oxidation reactor. Background technique [0002] With the acceleration of industrialization, the discharge of nitrogen-containing wastewater has increased sharply, which has caused severe eutrophication of surface water bodies and seriously threatened the health and survival of humans and organisms. At present, nitrogen treatment mainly relies on biological treatment technology represented by traditional nitrification-denitrification process. 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 anaerobic ammonium oxidation have emerged in biological nitrogen removal. Their main features are high load and low operating cost, so they have become the most valuable wastewater denitrification technology. At present, the anaerobic ammonium oxidation process ha...

Claims

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Application Information

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IPC IPC(8): C02F3/28
Inventor 郑平陈建伟
Owner ZHEJIANG UNIV
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