Method for treating sewage by organism-soil infiltration and device for realizing method

A soil infiltration and sewage technology, applied in biological water/sewage treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc. question

Inactive Publication Date: 2013-04-10
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing soil infiltration equipment occupies a large area, and the capillary structure of the soil is easily blocked during the sewage treatment process, resulting in the stagnation of the system operation

Method used

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  • Method for treating sewage by organism-soil infiltration and device for realizing method

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Embodiment Construction

[0030] The invention provides a method for treating urban domestic sewage or industrial sewage 2 / O biofilm reactor - soil infiltration equipment and the combined process of sewage treatment using this device.

[0031] A provided by the present invention 2 The combined process of / O biofilm reactor-soil infiltration equipment for sewage treatment is:

[0032] Use a water pump to pump the sewage into the water inlet of the anaerobic biofilm reactor 1;

[0033] Wherein, the bottom of the anaerobic biofilm reactor 1 is provided with a mud outlet 16, and the inside of the anaerobic biofilm reactor 1 is positioned above the mud outlet 16 to be provided with an agitator 4, and the filler above the agitator 4 grows anaerobic oxygen biofilm 18;

[0034] The water outlet of the anaerobic biofilm reactor 1 is connected to the water distribution pipe of the water inlet of the soil infiltration equipment 2 through the water pump 6;

[0035] The water distribution pipe is a perforated ...

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Abstract

The invention discloses a method for treating sewage by organism-soil infiltration. The method for treating the sewage by the organism-soil infiltration mainly comprises the following steps of: 1, performing an anaerobic reaction on the sewage so as to convert degradable macromolecular organic matter into micromolecules under an anaerobic environment; 2, mixing effluent after an aerobic reaction with effluent after the anaerobic reaction, then, distributing in soil, purifying water quality under a soil-microorganism-plant combined action, and performing denitrification on nitrates in the sewage to change into nitrogen (N2) under an anoxic condition to escape; 3, performing aerobic treatment on the effluent in the soil so as to digest residual organic matter in the sewage; discharging part of the effluent after residual ammonia nitrogen is removed, mixing part of the effluent with the effluent after the anaerobic reaction, and then, distributing into the soil; and 4, returning sludge after the aerobic treatment into the soil for use to serve as a fertilizer for plant growth. The invention also provides a device for realizing the method.

Description

technical field [0001] The invention belongs to sewage treatment technology, and in particular relates to a biological-soil infiltration method for treating urban domestic sewage or industrial sewage. [0002] The invention also relates to a device for implementing the above method. Background technique [0003] The biofilm method is developed on the basis of the activated sludge method, and is formed by microorganisms attaching to the surface of the carrier in the form of a film. Through contact with sewage, the microorganisms on the filler absorb the pollutants in the sewage as nutrients needed for growth and use them for metabolism, thereby purifying the sewage. Compared with the activated sludge method, the sludge produced by the biofilm method is greatly reduced, and the treatment effect is also greatly improved, but the generated sludge cannot be treated, and due to the limitations of the biological method, most of the phosphorus in the sewage is stored in the sludge....

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F3/30C02F3/32C02F3/34
Inventor 席北斗王雷张列宇夏训峰牛永超熊瑛王丽君赵颖
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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