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An integrated device for biochemical treatment enhanced by powder carrier

A powder carrier and biochemical treatment technology, which is applied in biological water/sewage treatment, reflux water treatment, water/sludge/sewage treatment, etc. It can solve the problems of unsatisfactory treatment effect, large floor area, and long sewage treatment time , to achieve the effect of overcoming low sludge concentration, high volume load, and small footprint

Active Publication Date: 2021-06-11
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the biochemical sewage treatment device in the prior art has the disadvantages of large floor space, long sewage treatment time, and unsatisfactory treatment effect.

Method used

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  • An integrated device for biochemical treatment enhanced by powder carrier
  • An integrated device for biochemical treatment enhanced by powder carrier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as Figure 1-2 As shown, it is a powder carrier-enhanced biochemical treatment integrated device provided in this embodiment. The device is cylindrical, including a central cylindrical aerobic zone 2, an anoxic / precipitation zone 2-1 surrounding the aerobic zone 2, The anoxic / precipitation zone 2-1 includes an anoxic zone 1 with a water inlet 11, a precipitation zone 3 located on the upper part of the anoxic zone 1, and the device also includes a bottom flow hole 14 connecting the anoxic zone 1 and the aerobic zone 2 , Return the sewage nitrifying liquid in the aerobic zone 2 to the submersible internal return pump 13 in the anoxic zone 1; the aerobic zone 2 and the anoxic / sedimentation zone 2-1 pass through the inner compartment 21 with a horn-shaped annular guide plate 22 , an outer compartment 32 with a trumpet-shaped annular guide plate 32-1 and a partition partition 17 with an inwardly inclined portion 17-1 and a vertical portion 17-2 to the central axis of th...

Embodiment 2

[0050] The difference between this embodiment and embodiment 1 is that the volume ratio of the anoxic zone 1 to the aerobic zone 2 is 1:2, and the surface load of the precipitation zone 3 is 0.6m 3 / m 2 h, the volume load of the device when denitrification / nitrification biological denitrification is 0.4Kg BOD 5 / m 3 d. The aeration system 16 adopts an aeration pan.

[0051] The power of the submersible plug flow mixer 10 is 0.6W / m 3 , the push flow velocity of the submerged push flow mixer 10 is 0.3m / s, and the flow velocity of the mixed sewage in the maintenance device through the bottom flow hole 14 is 0.4m / s; the distance between the overflow weir 31 and the top of the device shell is 300mm, the water outlet notch 41 is lower than the overflow weir 31, and the distance between the bottom of the sump 31-1 and the bottom of the overflow weir 31 is 200mm.

Embodiment 3

[0053] The difference between this example and Example 1 and Example 2 is that the volume ratio of the anoxic zone 1 to the aerobic zone 2 is 1:2.5, and the surface load of the precipitation zone 3 is 1.0m 3 / m 2 h, the volume load of the device when denitrification / nitrification biological denitrification is 1.0KgBOD 5 / m 3 d. The aeration system 16 adopts a tube aerator.

[0054] The power of submersible plug flow mixer 10 is 0.75W / m 3 , the push flow velocity of the submerged push flow mixer 10 is 0.35m / s, and the flow velocity of the mixed sewage in the maintenance device through the bottom flow hole 14 is 0.55m / s; the distance from the overflow weir 31 to the top of the device shell is 500mm, the water outlet notch 41 is lower than the overflow weir 31, and the distance between the bottom of the sump 31-1 and the bottom of the overflow weir 31 is 400mm.

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Abstract

The invention provides a powder carrier-enhanced biochemical treatment integrated device, the device is separated by an inner compartment and an outer compartment to form the upper half of the aerobic zone, and the device is cylindrical, including a central cylindrical aerobic zone, surrounded by The anoxic / sedimentation zone of the above-mentioned aerobic zone, the anoxic / sedimentation zone includes an anoxic zone with a water inlet, a sedimentation zone located on the upper part of the anoxic zone, and a bottom pass connecting the anoxic zone and the aerobic zone. The sewage nitrification liquid in the orifice and the aerobic zone is returned to the submerged internal return pump in the anoxic zone. The device provided by the invention overcomes the traditional biochemical technology with low sludge concentration, poor biochemical effect and large floor area by adding powder carrier in the central aerobic zone and increasing the attachment area of ​​the activated sludge method in the aerobic zone , the disadvantage of many single structures. Each reaction unit is closely combined in space, the pool body is built together, the head loss is small, and it has the advantages of high sludge concentration, good treatment effect and small device volume.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and in particular relates to a powder carrier-enhanced biochemical treatment integrated device. Background technique [0002] Urban sewage treatment has a great impact on the quality of urban climate and environment, as well as urban livability. Therefore, in actual development, the selection of urban sewage treatment technology and the implementation of control strategies in the implementation of technology have become government work and The main research topics in the development of environmental regulation. [0003] There are many types of sewage generated during urban development, among which the application of ecological treatment technology is also a commonly used treatment technology for the treatment of nitrogen and phosphorus sewage that is difficult to biodegrade. In the implementation of ecological treatment technology, land treatment method, stabilization pond, artificial wetland par...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30
CPCC02F3/301C02F2301/04
Inventor 柴晓利戴晓虎陆斌武博然周政
Owner TONGJI UNIV
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