Method for treating active microorganisms in sewage

A technology of active microorganisms and treatment methods, applied in the field of active microorganism treatment in sewage, can solve problems such as difficult separation of mud and water, and achieve the effects of achieving cell lysis, improving catalytic efficiency, and improving mixing efficiency.

Active Publication Date: 2021-12-14
WEIHAI COSCO SHIPBUILDING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, part of the water is tightly combined with the colloidal structure, especially the stable gel-like suspension structure formed by extracellular polymers with high charges can bind water molecules through electrostatic interaction, making it difficult to effectively separate mud and water

Method used

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  • Method for treating active microorganisms in sewage

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Embodiment 1

[0034] A method for treating active microorganisms in sewage, comprising the following steps:

[0035] Step 1, submerge the ultrasonic transducer (such as figure 1 In the shown device 1), the ultrasonic converter converts electrical energy into mechanical vibration, and applying a resonant electrical signal causes the converter to generate ultrasonic vibrations in the range of 1 MHz. The ultrasonic wave atomizes the persulfate solution into an aerosol with a diameter of 0.05 μm, and the aerosol Through the three-way pipeline, it enters the three-dimensional catalytic reactor together with the airflow.

[0036] Step II, in three-dimensional catalytic reactor (as figure 1 In the shown device 2), the number of electrode plates is 4 layers, and the electrode plates are coated with a rare metal layer with a ruthenium ratio of 10% and an iridium ratio of 90%, and the gap between the electrode plates is filled with a rhodium carbon catalyst. Persulfate is used as an oxidant, and th...

Embodiment 2

[0043] A method for treating active microorganisms in sewage, comprising the following steps:

[0044] Step 1, submerge the ultrasonic transducer (such as figure 1 In the shown device 1), the ultrasonic converter converts electrical energy into mechanical vibration, and applying a resonant electrical signal causes the converter to generate ultrasonic vibrations in the range of 2MHz. The ultrasonic wave atomizes the persulfate solution into an aerosol with a diameter of 1 μm, and the aerosol passes through the The three-way pipeline enters the three-dimensional catalytic reactor together with the gas flow.

[0045] Step II, in three-dimensional catalytic reactor (as figure 1In the shown device 2), the number of electrode plates is 8 layers, and the electrode plates are coated with rare metal layers with ruthenium accounting for 90% and iridium accounting for 10%, and the gaps between the electrode plates are filled with platinum carbon catalysts. Persulfate is used as an oxid...

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Abstract

The invention discloses a method for treating active microorganisms in sewage, which comprises the following steps: I, ultrasonic treatment is conducted on a persulfate aqueous solution by using an ultrasonic converter to obtain aerosol; II, the generated aerosol enters a three-dimensional catalytic reactor and is subjected to a catalytic reaction with activated sludge in a three-dimensional catalytic reactor; III, the degraded homogeneous activated sludge enters a catalytic oxidation reactor, and the activated sludge is further destroyed and degraded; and VI, one part of treated activated sludge is filtered, supernate is directly fed into a biochemical sludge tank to be used as a nutrient solution, and the other part of the treated activated sludge is discharged. The treatment effect of the method is obviously better than that of other treatment methods, the sludge reduction effect is obvious, and the method has important significance for reducing the sludge treatment cost.

Description

technical field [0001] The invention relates to a treatment method, in particular to a treatment method for active microorganisms in sewage. Background technique [0002] Sludge is a complex system composed of fine particles with electric charges on the surface. The particles in it repel each other electrostatically and have poor settling properties. In addition, part of the water is tightly combined with the colloidal structure, especially the stable gel-like suspension structure formed by extracellular polymers with high charges can bind water molecules through electrostatic interaction, making it difficult to effectively separate mud and water. Therefore, there is an urgent need to develop a method for effectively treating sewage. Contents of the invention [0003] In order to solve the shortcomings of the above-mentioned technologies, the present invention provides a treatment method for active microorganisms in sewage, which aims to improve the settling rate and comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F1/72C02F7/00
CPCC02F11/006C02F11/15C02F11/143C02F11/121Y02W10/10
Inventor 王建张灿于坤坤郑腾张伟群
Owner WEIHAI COSCO SHIPBUILDING TECH CO LTD
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