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Integrated sewage treatment device and method based on tidal aerated biological filter

A technology of biological aerated filter and sewage treatment equipment, applied in biological water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problem of high backwash intensity and large backwash water volume , High height of biological aerated filter, to achieve the effect of high effluent quality, small equipment size, and long-term stable operation

Pending Publication Date: 2019-02-26
HANGZHOU QINLIN ECOLOGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, domestic integrated equipment based on biological filter technology is blank, mainly due to the shortcomings of high height of biological aerated filter, high backwash intensity, and large amount of backwash water, which make its application in the field of integrated equipment restricted. limit

Method used

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  • Integrated sewage treatment device and method based on tidal aerated biological filter
  • Integrated sewage treatment device and method based on tidal aerated biological filter
  • Integrated sewage treatment device and method based on tidal aerated biological filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] like figure 1 As shown, the integrated sewage treatment equipment based on the tidal aerated biological filter includes a sedimentation tank 1, a biological aerated filter 2, an anaerobic filter 3 and a breathing filter 4 connected in sequence through pipes. The upper part of the sedimentation tank 1 is provided with a water inlet pipe 10, and the water inlet pipe 10 is provided with a first pipeline mixer 11 for adding phosphorus removal chemicals. The interior of the sedimentation tank 1 is divided into a guide area 101 and a filter area 102 by a guide plate 12 , and the water inlet pipe 10 is communicated with the guide area 101 . The upper part of the filter area 102 is provided with a suspended filler layer 13, and the material of the suspended filler layer 13 is a foamed plastic with a particle size of 3-5 mm and a thickness of 50 cm. A fine mesh 14 is fixed above the suspended filler layer 13, and the aperture of the fine mesh is 2 mm. The lower part of the sed...

Embodiment 2

[0048] like figure 2 As shown, the difference between the present embodiment and the first embodiment is only that the tidal drainage device is a siphon 28, the siphon 28 is a stainless steel pipe, and the siphon 28 is composed of an interconnected water inlet siphon 281 and an outlet siphon 282, the highest of the siphon 28 is point is lower than the water level line of the biological aerated filter tank 2 maximum liquid level, the siphon pipe 28 is provided with a second pipeline mixer 6 for adding carbon source. The water inlet siphon water pipe 281 stretches into the bottom of the water collection well 26, and a certain height on the wall of the water collection well 26 is provided with a siphon breaking cup 283, and the end of the water outlet siphon water pipe 282 extends into the coarse aggregate filter layer 32 of the anaerobic filter tank 3 . The rest of the structure of this embodiment is the same as that of Embodiment 1.

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Abstract

The invention discloses an integrated sewage treatment device based on a tidal aerated biological filter. The integrated sewage treatment device comprises a sedimentation tank, the aerated biologicalfilter, an anaerobic filter and a respiratory filter which are sequentially connected by pipes. A water inlet pipe is arranged at the upper part of the sedimentation tank, a produced water pipe is arranged at the bottom of the respiratory filter, a main filter layer and a drainage layer are arranged in the aerated biological filter sequentially from top to bottom, the main filter layer is filled with a primary filter material, the drainage layer is filled with a secondary filter material, and the particle diameter of the secondary filter material is greater than that of the primary filter material. The bottom of the drainage layer is provided with a water outlet, the water outlet is connected with a tidal drainage device, and the tidal drainage device is connected with the anaerobic filter. The integrated sewage treatment device has the advantages that the sedimentation tank is arranged at the front end of the water inlet pipe to remove most of sediments so as to ensure the water inletcondition of the filter; and the tidal aerated biological filter, the anaerobic filter and the respiratory filter constitute an aerobic-anaerobic-aerobic process combination, which has a good effecton the removal of ammonia nitrogen and other pollutants. The entire device is small in size, high in load, and low in operating energy consumption.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an integrated sewage treatment equipment and method based on a tidal aerated biological filter. Background technique [0002] At present, the integrated sewage treatment equipment on the market is widely used in A / O contact oxidation, anaerobic pretreatment, MBR, etc. The residence time of these integrated equipment is relatively long. Among them, the MBR process system is recognized as the most land-saving process system. The residence time should be more than 6h. Biological filters, especially aerated biological filters, have the advantages of short residence time (HRT < 1.5h), high organic load, long service life and low construction cost. However, the domestic integrated equipment mainly based on biological filter technology is a blank, mainly due to the shortcomings of high height of aerated biological filter, high backwashing intensity, and large amount of back...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F9/00C02F2001/007C02F1/001C02F3/307C02F3/302C02F3/28C02F3/02
Inventor 周锋王光荣汪智杰
Owner HANGZHOU QINLIN ECOLOGICAL TECH CO LTD
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