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Sewage disposal method using embedding immobilization microorganism grain fluidized bed

A technology of immobilized microorganisms and sewage treatment methods, which is applied in biological water/sewage treatment, sustainable biological treatment, water/sludge/sewage treatment, etc. It can solve the problems of microbial aging, efficiency decline, and poor activity, and achieve contact Sufficient, easy maintenance, high volume load effect

Active Publication Date: 2011-09-21
ZHONGSHAN ENVIRONMENTAL PROTECTION IND CO LTD
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Problems solved by technology

[0002] Although the activated sludge fluidized bed technology in sewage treatment has been widely used, its treatment efficiency and stability cannot be compared with the treatment technology of immobilized microorganisms by embedding method. The technology in the process is all implemented in a fixed bed
This fixed bed technology has the disadvantages of microbial aging, poor activity, and gradual decline in efficiency.

Method used

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  • Sewage disposal method using embedding immobilization microorganism grain fluidized bed
  • Sewage disposal method using embedding immobilization microorganism grain fluidized bed
  • Sewage disposal method using embedding immobilization microorganism grain fluidized bed

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Embodiment Construction

[0013] refer to figure 1 , when adopting anaerobic treatment, first fill the spherical filler particles embedded with microbial flora in the sewage treatment device, the diameter of the filler particles is 5-8mm, and the density is 1000-1400kg / m 3 , the sewage enters the anaerobic device, and under anaerobic conditions, the filler particles embedded with anaerobic bacteria contact the sewage, and the enzymes produced by the microorganisms in the water convert the organic matter in the water into methane (biogas), CO 2 with H 2 O, because the density of these spherical particles is slightly higher than that of water, they can roll up and down to form a fluid state under the stirring of biogas, and the mixture at the bottom is put into the solid-liquid separator. After separation, the liquid enters the anaerobic tank through the inlet pump, and the solid particles flow into Regeneration device, there is a high-concentration pure bacteria mother liquid in the regeneration device...

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Abstract

The invention discloses a method for treating sewage of an embedded immobilized microorganism particle fluidized bed, wherein spherical filler particles which are embedded with microorganism flora are filled into a sewage disposal device at first and then the sewage is led into the sewage disposal device, so as to make the filler particles which are embedded with the microorganism flora roll up and down when stirred by an aerator to become fluid state; organic substances in water are transformed and degraded by enzymes which are generated by microorganisms, and mixture which flows out from the sewage disposal device enters into a solid-liquid separator for solid-liquid separation; the filler particles flow into a regenerative device for regeneration, and the spherical filler particles after regeneration are sent into the solid-liquid separator on the upper part of the sewage disposal device; and a liquid inversely flows into a mother liquor device, and the filler particles are returned back to the sewage disposal device. The method not only overcomes the defects of the prior sewage disposal method but also has the characteristics of high efficiency, strong adaptability, short adjusting period, low sludge amount, convenient assembly and maintenance, compact structure, convenient operation and so on.

Description

technical field [0001] The invention relates to a method for treating sewage, in particular to a method for treating sewage in a fluidized bed of immobilized microbial particles by an embedding method. Background technique [0002] Although the activated sludge fluidized bed technology in sewage treatment has been widely used, its treatment efficiency and stability cannot be compared with the treatment technology of immobilized microorganisms by embedding method. The technologies in processing are all implemented in fixed beds. This fixed bed technology has the disadvantages of microbial aging, poor activity, and gradual decline in efficiency. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention provides an embedding method for immobilized microbial particle fluidized bed sewage treatment method, which has the advantages of high efficiency, high volume load, strong adaptability, short commissioning period, less s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N11/04C02F3/10C02F3/34
CPCY02W10/10
Inventor 宋应民
Owner ZHONGSHAN ENVIRONMENTAL PROTECTION IND CO LTD
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