Multimedium renewable biological filtering method and device

A biological filtration and multi-media technology, which is applied to the device of the treatment method and the field of sewage treatment by biological filtration, can solve the problems of affecting the purification degree of sewage, the decrease of treatment efficiency, and the difficulty of regeneration of filter materials, etc., so as to achieve excellent water quality and short pipelines , the effect of stabilizing the treatment effect

Active Publication Date: 2014-06-11
YUNNAN BINGSEN ENVIRONMENT ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The aging biofilm falls off, which can easily cause problems such as plugging of fillers, reduction of treatment efficiency, and difficulty in regeneration of filt

Method used

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  • Multimedium renewable biological filtering method and device
  • Multimedium renewable biological filtering method and device
  • Multimedium renewable biological filtering method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The multi-media regeneration biological filtration method of the present invention, its steps are:

[0031] a. The domestic sewage enters the grid channel 1 from the sewage inlet. The grid channel is a type of screen machine or artificial screen. The sewage passes through the screen channel 1 to separate and remove coarse particles with a particle size of ≥10mm;

[0032] b. The sewage that removes coarse particles enters the regulating tank 2, and the sewage in the regulating tank 2 is lifted by the sewage pump 3, and the valve is used to control and adjust the flow, and 85~95% of the sewage is pumped to the contact aeration tank 4, 5~15 % of the sewage is pumped to the denitrification tank 5 as a carbon source supplement for denitrification;

[0033] c. The sewage entering the contact aeration tank 4 undergoes biochemical aeration treatment to degrade most of the pollutants, and the sewage treated in the aeration tank 4 enters the sedimentation tank 6;

[0034] d. ...

Embodiment 2

[0056] The method and device of the present invention are used to carry out experiments and undertake the domestic sewage treatment project in the Yunnan Haigeng Conference Center area. Sewage treatment facilities can be shielded or buried underground, in harmony with the landscape, completely improving the general sewage treatment facilities. The project processing scale is 600 m 3 / d, completed and put into operation in October 2008, is currently in stable operation, and the effluent water quality reaches the Class A standard of the "Pollutant Discharge Standard for Urban Sewage Treatment Stations" (GB18918-2002), and is used as landscape water in the community. After the demonstration project was put into trial operation, the effluent water quality has fully reached the design target and is relatively stable after the Yunnan Provincial Environmental Monitoring Center Station and multiple self-inspection analysis.

[0057] Water quality monitoring results (mg / L), see the ta...

Embodiment 3

[0062] The method and device of the present invention are used for testing, and undertake the treatment work of the Ganhaizi Sewage Treatment Plant Reconstruction and Expansion Project in the Provincial Tourism Development Zone of Yulong Snow Mountain in Lijiang. Reconstruction and expansion project of Ganhaizi Sewage Treatment Plant in Lijiang Yulong Snow Mountain Provincial Tourism Development Zone, with a treatment scale of 2000m 3 / d, located in the alpine mountainous area of ​​the Qinghai-Tibet Plateau at an altitude of more than 3,000 meters, the quality of the sewage effluent meets the first-level A standard of the "Pollutant Discharge Standards for Urban Sewage Treatment Stations" (GB18918-2002) and the "Water Quality of Urban Sewage Recycling Landscape Water" GB / T18921 -2002 Relevant requirements for water features. It provides a reliable treatment method for the sewage treatment in the Qinghai-Tibet Plateau area of ​​my country.

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Abstract

The invention relates to a method for treating sewage by a biological filtration way and a device for the treatment method. The device comprises a sewage inlet, a grille-channel regulation tank, air pumps, a contact aeration tank, a sedimentation tank, an aeration blower fan, a denitrification tank, a dephosphorization tank, a biochar tank, a filter tank, a clean water tank, a filter and an ultraviolet light sterilizer which are arranged successively; the sewage inlet is connected with the regulation tank through a grille channel; the contact aeration tank is connected with the aeration blower fan through an aeration pipeline; the grille channel, the contact aeration tank, the sedimentation tank, the denitrification tank, the dephosphorization tank, the biochar tank, the filter tank and the clean water tank are successively communicated and the air pumps are arranged therebetween. With one-time filling and one-time investment, the device can be used for more than ten years, is low in running cost, convenient to manage and maintain and stable in effluent quality, and is used for depth treatment based on a conventional technology; and moreover, cultivation of microorganisms depends on suitable bacteria cultured by the system itself, the impact resistance is strong, and the degree of purification is high.

Description

technical field [0001] The invention relates to a method for treating sewage, in particular to a method for treating sewage by means of biological filtration. The invention also relates to a device for such a treatment method. Background technique [0002] Biochemical treatment method is the main method of domestic sewage treatment, which has been widely used at home and abroad. The selection of sewage treatment process should be based on comprehensive consideration of multiple factors such as influent and effluent water quality, treatment degree requirements, floor area and project scale. Suitable sewage treatment The process can not only reduce the project investment, but also facilitate the operation and management of the sewage treatment station, reduce the recurrent cost of the sewage treatment station, and ensure the quality of the effluent. [0003] Biochemical treatment is mainly divided into two categories: activated sludge method and biofilm method. [0004] The ...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCY02W10/37
Inventor 杨敏贺彬杨骐玮
Owner YUNNAN BINGSEN ENVIRONMENT ENG
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