Carrier filter and its application in sewage treatment

A filter and carrier technology, applied in the carrier filter and its application in sewage treatment, can solve the problems of high operation and maintenance and manufacturing costs, high difficulty in backwashing, high SS of effluent, achieve stable operation and reduce backwashing Difficulty, effect of reducing floor space

Pending Publication Date: 2019-12-20
QINGDAO SPRING WATER TREATMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of high SS of the effluent in the separate treatment process of the secondary settling tank, large land occupation, influence by floating mud, poor stability, etc., as well as the large occupied area, Due to technical problems such as high difficulty in backwashing, large amount of backwashing water, high operation and maintenance and manufacturing costs, the invention discloses a carrier filter and its application in sewage treatment

Method used

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  • Carrier filter and its application in sewage treatment

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Experimental program
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Effect test

Embodiment 1

[0031] Such as figure 1 As shown, a carrier filter includes a housing 1, a suspended carrier bed 7 arranged inside the housing 1, a sludge buffer zone 5 and a sludge layer 4; the inside of the sludge layer 4 is provided with a water distribution system 3. The above-mentioned water distribution system 3 is connected to one end of the water inlet pipe 2, and the other end of the water inlet pipe 2 extends out of the shell 1; the above-mentioned sludge buffer zone 5 is interposed between the sludge layer 4 and the suspension carrier bed 7, The suspended carrier bed 7 and the sludge buffer zone 5 are separated by a support screen 6, and an outlet water interception screen 8 is also arranged above the above-mentioned suspension carrier bed 7, and the above-mentioned outlet interception screen 8 is also connected with the sump 9. The water tank 9 is located above the suspended carrier bed 7 and communicates with the shell 1; the shell 1 is also provided with an outlet pipe 10, a bac...

Embodiment 2

[0050] The difference with embodiment 1 is:

[0051] The above-mentioned water distribution system 3 selects a flat hole water distributor;

[0052] The height of the above-mentioned suspended carrier bed 7 is 0.4m, the height of the above-mentioned sludge buffer zone 5 is 0.3m, and the height of the above-mentioned sludge layer 4 is 0.5m;

[0053] The suspension carrier bed 7 is filled with a suspension carrier, the shape of the suspension carrier is spherical, the material of the suspension carrier is PP, and the diameter is 10mm;

[0054] Above-mentioned supporting screen cloth 6 is flat screen cloth, and the opening size of supporting screen cloth 6 is 8mm;

[0055] The water outlet intercepting screen 8 is a flat screen, and the opening size of the outlet water intercepting screen 8 is 8mm.

Embodiment 3

[0057] The difference with embodiment 1 is:

[0058] The water distribution system adopts perforated pipe water distributor;

[0059] The height of the above-mentioned suspended carrier bed is 1.5m, the height of the above-mentioned sludge buffer zone is 0.7m, and the height of the above-mentioned sludge layer is 1.2m;

[0060] The suspension carrier bed is filled with suspension carriers, the shape of the suspension carrier is spherical, the material of the suspension carrier is PP, and the diameter is 38mm;

[0061] The above-mentioned support screen is a flat screen, and the opening size of the support screen is 20mm;

[0062] The above-mentioned water outlet intercepting screen is a drum screen, and the opening size of the water outlet intercepting screen is 20 mm.

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Abstract

The invention discloses a carrier filter, which comprises a shell, a suspended carrier bed, a sludge buffer zone and a sludge layer; a water distribution system is arranged inside the sludge layer, the water distribution system is connected with one end of the water inlet pipe, and the other end of the water inlet pipe extends out of the shell; the sludge buffer zone is between the sludge layer and the suspended carrier bed, the suspended carrier bed and the sludge buffer zone are separated by a supporting screen, an effluent interception screen is also arranged above the suspended carrier bed, and the effluent interception screen is also communicated with a water collecting tank; the water collecting tank is located above the suspended carrier bed and is communicated with the shell. The invention also discloses an application of the carrier filter in sewage treatment. The invention has the beneficial effects that it has high-efficiency integrated precipitation and filtration functions, has the advantages of high solid-liquid separation efficiency, high process integration degree, good effluent effect, stable operation, less land occupation and the like, and is especially suitablefor precipitation and filtration equipment in small and medium-sized sewage treatment projects.

Description

technical field [0001] The invention relates to the technical field of sewage treatment equipment, in particular to a carrier filter and its application in sewage treatment. Background technique [0002] At present, with the rapid development of urban construction and the continuous improvement of people's living standards, the discharge of domestic sewage continues to increase, which has become an important factor restricting the healthy development of the national economy. [0003] Biological treatment is widely used in domestic sewage treatment in villages and towns because of its advantages such as low cost, less secondary pollution, and mild conditions. However, with the stricter sewage drainage standards, the SS discharge requirements of rural domestic sewage in some places have been higher than the first-class B discharge standard (SS≤20mg / L), and even reached the first-class A discharge standard (SS≤10mg / L) . [0004] Since the SS of conventional secondary sediment...

Claims

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Application Information

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IPC IPC(8): B01D36/02C02F1/00
CPCB01D36/02C02F1/001C02F2201/002C02F2301/08C02F2303/16C02F2303/14
Inventor 朱清江王存峰赵廷杰刘凯刘曙于振滨
Owner QINGDAO SPRING WATER TREATMENT
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