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A kind of reactor and quick start method for quickly starting anaerobic ammonium oxidation coupled nitrosation reaction

An anammox, fast-start technology, applied in the field of wastewater biological treatment, can solve the problems of long generation cycle of anammox bacteria, limited application and development, slow growth, etc., to achieve easy growth and reproduction, and avoid sludge loss. , the effect of stabilizing ecological conditions

Active Publication Date: 2017-11-24
山东美泉环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the long generation cycle and slow growth of anammox bacteria severely limit their application and development.
The Sequencing Batch Activated Sludge Reactor (SBR) is easy to operate, but the sludge loss is serious

Method used

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  • A kind of reactor and quick start method for quickly starting anaerobic ammonium oxidation coupled nitrosation reaction
  • A kind of reactor and quick start method for quickly starting anaerobic ammonium oxidation coupled nitrosation reaction

Examples

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Embodiment 1

[0045] A reactor for quickly starting anaerobic ammonium oxidation coupling nitrosation reaction, the structure is as follows figure 1 Shown, comprise long columnar reactor 1, be provided with water inlet 2 at the bottom of reactor, sidewall upper part is provided with water outlet 3, be provided with gravel layer in the bottom of reactor, the thickness of gravel layer is 3cm, gravel The average diameter of the gravel in the layer is 5mm, and a water inlet pipe is laid in the gravel layer, and the water inlet pipe is connected to the water inlet. A lower partition 7 with holes is arranged above the gravel layer, and a packing layer 4 is arranged on the lower partition. The packing layer There are gaps inside, the porosity of the packing layer is 0.7, the thickness of the packing layer is 1 / 2 of the height of the reactor, the top of the packing layer is provided with an upper partition 8 with holes, and an aeration reactor is arranged on the upper part of the packing layer . T...

Embodiment 2

[0049] Utilize the reactor of embodiment 1 to quickly start the method for anaerobic ammonium oxidation coupling nitrosation reaction, comprise steps as follows:

[0050] (1) 1.5L of activated sludge is added to the packing layer area of ​​the reactor of the quick-start anammox coupled nitrosation reaction of embodiment 1, the effective volume of the reactor is 5L, and the bottom is paved with a thickness of It is a gravel layer with a diameter of 3 cm and a diameter of 5 mm, and the water inlet pipe is laid in the gravel layer; the activated sludge is obtained from the sludge discharged from Jinan Everbright Water Affairs after filtering, screening, and pre-cultivation, and the sludge is removed by filtering and screening. Leaves, waste paper, waste plastics and other impurities in the sludge, and then feed the sludge into the lower reaction zone of the sequencing batch bioreactor.

[0051] (2) Add polyethylene filler particles to the filler layer area where sludge has been a...

Embodiment 3

[0055] Utilize the reactor of embodiment 1 to quickly start the method for anaerobic ammonium oxidation coupling nitrosation reaction, comprise steps as follows:

[0056] (1) 1.5L of anaerobic granular sludge is added to the packing layer area of ​​the reactor of the quick-start anammox coupled nitrosation reaction of embodiment 1. The effective volume of the reactor is 5L, and the bottom is paved with There is a gravel layer with a thickness of 3cm and a diameter of 5mm, and the water inlet pipe is laid in the gravel layer; the anaerobic granular sludge is the sludge discharged from a paper mill in Zibo, and the sludge is added to the sequencing batch bioreactor in the lower reaction zone.

[0057] (2) Add polyethylene filler particles to the filler layer area where sludge has been added to form a filler layer. The porosity of the filler layer is 0.7, and the thickness of the filler layer is 1 / 2 of the height of the reactor. The polyethylene filler particles Stir and mix wit...

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Abstract

The invention relates to a reactor for fast starting anaerobic ammonium oxidation coupled nitrosation reaction and a quick starting method. A gravel layer is laid on the inner bottom of the reactor, and a lower partition with holes is arranged above the gravel layer. On the lower partition, A packing layer is provided, there are gaps inside the packing layer, the porosity of the packing layer is 0.6-0.8, the thickness of the packing layer is 2 / 5-1 / 2 of the height of the reactor, and the top of the packing layer is provided with an upper partition with holes . The reactor of the invention can realize the separation of the aerobic zone and the anaerobic zone, quickly start the synchronous nitrification and anaerobic ammonium oxidation reactions, and can efficiently treat nitrogen-containing wastewater. In the present invention, the reactor can attach the sludge to the filler and fix it on the lower layer of the reactor, which can prevent the loss of sludge, effectively realize the division of the aerobic layer and the anaerobic layer, and can effectively shorten the start-up of the anammox coupled nitrosation process Time, and simplify the process, easy to operate.

Description

technical field [0001] The invention relates to a reactor for quickly starting anaerobic ammonium oxidation coupled nitrosation reaction and a quick starting method, belonging to the field of wastewater biological treatment. Background technique [0002] The traditional nitrification-denitrification denitrification method has been difficult to meet the current treatment requirements of high ammonia nitrogen wastewater. As a cheap and efficient new denitrification process, the anaerobic ammonium oxidation process is especially suitable for the field of high ammonia nitrogen wastewater treatment. Anaerobic ammonium oxidation refers to the conversion of NH under anaerobic conditions 4 + -N and NO 2 - -N converts to N 2 The process of this reaction does not require the participation of organic matter and oxygen, which greatly reduces the cost of denitrification. Its reaction formula is: [0003] NH 4 + +1.32NO 2 - +0.06HCO 3 - +0.13H + →1.02N 2 +0.26NO 3 - +0.06...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30
Inventor 倪寿清孙娜张建
Owner 山东美泉环保科技有限公司
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