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Multimedium renewable biological filtering method and device

A biological filtration, multi-media technology, applied in chemical instruments and methods, multi-stage water/sewage treatment, energy and wastewater treatment, etc. The effect of excellent water quality, short pipeline and stable treatment effect

Active Publication Date: 2015-05-20
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 filter media; the type and form of filter media directly affect the population of microorganisms, the removal of pollution factors and the purification degree of sewage

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 steps of the multi-media renewable biological filtration method of the present invention are:

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

[0032] b. The sewage after removing the coarse particles enters the regulating tank 2, 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 supplementary carbon source required for denitrification

[0033] c. The sewage entering the contact aeration tank 4 undergoes aeration biochemical 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 for testing, and the domestic sewage treatment project in the Yunnan Haigeng Conference Center area is undertaken. Sewage treatment facilities can be shielded or buried underground, in harmony with the landscape, and completely improve the outlook of general sewage treatment facilities. Project processing scale is 600 m 3 / d. It was completed and put into production in October 2008. It is currently operating stably, and the effluent quality has reached the Grade A standard of the Pollutant Discharge Standard for Urban Wastewater Treatment Station (GB18918-2002), and is used as landscape water in the community. After this demonstration project was put into trial operation, after the Yunnan Provincial Environmental Monitoring Center Station and multiple self-checks and analyses, the effluent water quality completely reached the design expectations, and the water quality was relatively stable.

[0057] Water quality moni...

Embodiment 3

[0062] Using the method and device of the present invention to carry out tests, undertake the transformation of Ganhaizi Sewage Treatment Plant in Lijiang Yulong Snow Mountain Provincial Tourism Development Zone

[0063] Processing work of the expansion project. Treatment scale of Ganhaizi Sewage Treatment Plant in Lijiang Yulong Snow Mountain Provincial Tourism Development Zone

[0064] 2000m 3 / d, located in the high-cold mountainous area of ​​the Qinghai-Tibet Plateau with an altitude of more than 3000 meters, the sewage effluent water quality meets the "Urban Wastewater Treatment Station Pollutant Discharge Standard" (GB18918-2002) Grade A Standard and "Urban Sewage Recycling Landscape Water Quality" GB / T18921 -2002 Relevant requirements for waterscape category. It provides a reliable treatment method for sewage treatment in my country's Qinghai-Tibet Plateau.

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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 sewage treatment method, in particular to a method for treating sewage in a biological filtration manner. The invention also relates to a device for this processing method. Background technique [0002] The 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 the comprehensive consideration of multiple factors such as the quality of the incoming and outgoing water, the degree of treatment, the area occupied and the scale of the project. The process can not only reduce the project investment, but also facilitate the operation and management of the sewage treatment station, reduce the recurring costs 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 sewage ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
CPCY02W10/37
Inventor 杨敏贺彬杨骐玮
Owner YUNNAN BINGSEN ENVIRONMENT ENG
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