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Complex type internal circulation bioreactor

A bioreactor and internal circulation technology, applied in the direction of sustainable biological treatment, biological water/sewage treatment, chemical instruments and methods, etc., can solve the problem of unsatisfactory sewage and wastewater treatment effects, insufficient internal oxygen transfer, and low reaction speed and other problems, to achieve the effect of good wastewater treatment, high degree of turbulence, and fast fluid flow

Inactive Publication Date: 2004-03-03
王强 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing internal circulation three-phase fluidized bed water treatment device has only one reaction inner barrel installed in the bed body. Due to the large flow channel cross section of this device, the oxygen transfer per unit volume and unit time is not sufficient, resulting in a high reaction rate. Low, the degree of progress of the reaction is also low, and the effect of sewage and wastewater treatment is not ideal

Method used

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  • Complex type internal circulation bioreactor
  • Complex type internal circulation bioreactor
  • Complex type internal circulation bioreactor

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Industrial phenol-containing wastewater system: the influent phenol content is 800mg / l, and the residence time is 1-3hr. Using our own domesticated strains, after being treated by this compound internal circulation bioreactor device:

[0027] Effluent phenol concentration 1.256-0.283mg / l

[0028] Phenol removal rate is stable >99%

Embodiment 2

[0030] Industrial phenol-containing wastewater system: the influent phenol content is 1400mg / l, and the residence time is 1-3hr. Using our own domesticated strains, after being treated by this compound internal circulation bioreactor device

[0031] Effluent phenol concentration 23.765-0.532mg / l

[0032] Phenol removal rate is stable > 98%

[0033] The above experiments prove that the cross-section of the flow channel of the present invention is small, and at the same flow rate, the fluid flow speed is fast and the degree of turbulence is high, which improves the mass transfer efficiency and the reaction speed. In the same residence time, the reaction progress is increased, and the wastewater treatment effect is good.

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Abstract

A bioreactor with multiple internal circulations for treating sewage is composed of a bed body with closed bottom, the first internal circulating cylinder with the first aerating head, liquid inlet tube and the first flow guiding opening, the second internal circulating cylinder with closed bottom and the second flow guiding opening, and the third internal circulating cylinder with the second aerating head and the fourth flow guiding opening.

Description

technical field [0001] The invention relates to a waste water and sewage treatment device, more specifically, relates to a biological waste water and sewage treatment device. Background technique [0002] In the process of biological water treatment, the quality of the mass transfer conditions between microorganisms, nutrients and oxygen is the key to the effect of the reaction. Among the existing reaction devices, the internal circulation three-phase fluidized bed water treatment device is widely used because of its simple structure and good mass transfer performance. However, the existing internal circulation three-phase fluidized bed water treatment device has only one reaction inner barrel installed in the bed body. Due to the large flow channel cross-section of this device, the oxygen transfer per unit volume and unit time is not sufficient, resulting in a high reaction rate. Low, the degree of progress of the reaction is also low, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/00C02F3/02
CPCY02W10/10
Inventor 王强马沛生
Owner 王强