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A2O (anaerobic-anoxic-oxic), MBR (membrane bio-reactor) and miniature animal bio-bed set for wastewater treatment and sludge reduction and application thereof

A technology for sludge reduction and sewage treatment, applied in biological water/sewage treatment, sustainable biological treatment, multi-stage water/sewage treatment, etc. Due to the large area of ​​the sedimentation tank, the effect of reducing infrastructure costs and operating costs, efficient sewage treatment, and reducing the area

Inactive Publication Date: 2015-12-02
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It overcomes the traditional A 2 O process has low nitrogen and phosphorus removal rate, large area of ​​sedimentation tank, high sludge yield, effluent water quality is difficult to meet the water quality standard for reuse, and there is no effective simultaneous sewage treatment and sludge reduction.

Method used

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  • A2O (anaerobic-anoxic-oxic), MBR (membrane bio-reactor) and miniature animal bio-bed set for wastewater treatment and sludge reduction and application thereof
  • A2O (anaerobic-anoxic-oxic), MBR (membrane bio-reactor) and miniature animal bio-bed set for wastewater treatment and sludge reduction and application thereof
  • A2O (anaerobic-anoxic-oxic), MBR (membrane bio-reactor) and miniature animal bio-bed set for wastewater treatment and sludge reduction and application thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0018] Specific implementation mode one: this implementation mode is described in conjunction with the figure, a kind of A of this implementation mode 2 O, the sewage treatment and sludge reduction combination device of MBR and micro-animal biological bed, it comprises: anaerobic pool 1, anoxic pool 2, aerobic pool 3, MBR4 and micro-animal biological bed 5; Wherein, anaerobic pool The water inlet of outlet pipe 7 is communicated with anaerobic pool 1, and the water outlet of anaerobic pool outlet pipe 7 is communicated with the water inlet of anoxic pool inlet pipe 8, and the water outlet of anoxic pool inlet pipe 8 is communicated with anoxic pool 2; The water inlet of the anoxic pool outlet pipe 9 communicates with the anoxic pool 2, the water outlet of the anoxic pool outlet pipe 9 communicates with the water inlet of the aerobic pool inlet pipe 10, and the water outlet of the aerobic pool inlet pipe 10 communicates with the aerobic pool 3 is connected; the water inlet of t...

specific Embodiment approach 2

[0024] Specific embodiment two: This embodiment is described in conjunction with the figure. The difference between this embodiment and specific embodiment one is that: a membrane module 19 and an aeration device 20 are arranged in the MBR4; the material of the membrane module 19 is polytetrafluoroethylene, Polyethylene polypropylene, polyvinylidene fluoride or zeolite molecular sieves. Other compositions and connection methods are the same as those in Embodiment 1.

specific Embodiment approach 3

[0025] Specific embodiment three: This embodiment is described in conjunction with the figure. The difference between this embodiment and specific embodiment one is that the micro-animal biological bed 5 is provided with a micro-aeration device 21, a micro-animal carrier 22, a micro-animal 23 and a flow-pushing device 24 ; The micro-animal carrier 22 is a combination of fillers, elastic fillers, or made of nylon material, superfine fiber bundle material, polypropylene fiber bundles, polyethylene fiber bundles, etc. obliquely staggered rolling or arranged horizontally and vertically. Other compositions and connection methods are the same as those in Embodiment 1.

[0026] Embodiment 4: This embodiment is described in conjunction with the drawings. The difference between this embodiment and Embodiment 1 is that the micro-animal 23 grows and attaches to the micro-animal carrier 22, and the micro-animal 23 is a micro-animal that preys on sludge . Other compositions and connection...

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Abstract

The invention relates to a set for wastewater treatment and sludge reduction and application thereof, in particular to an A2O (anaerobic-anoxic-oxic), MBR (membrane bio-reactor) and miniature animal bio-bed set for wastewater treatment and sludge reduction and application thereof, and overcomes the defects that a traditional A2O process has low removal rate of nitrogen and phosphorous, a secondary sedimentation tank has large floor area, sludge yield is high and quality of outgoing water meeting the quality standard of recyclable water is difficult. The set comprises an anaerobic tank, an anoxic tank, an aerobic tank, an MBR (membrane bio-reactor) and a miniature animal bio-bed. The set is used for wastewater treatment and sludge reduction. The set has high removal rate of nitrogen and phosphorous and small floor area, the quality of the outgoing water can meet the quality standard of recyclable water, and a sludge amount is greater than 40% lower than that of the traditional A2O process.

Description

technical field [0001] The invention belongs to the technical field of high-efficiency treatment for synchronously performing sewage treatment and sludge reduction. It relates to a combined device for sewage treatment and sludge reduction and its application. Background technique [0002] A 2 The O process is a sewage treatment process based on the activated sludge method, which mainly consists of anaerobic-anoxic-aerobic three-stage biological treatment. Because of its simple process flow, good sludge settling performance, and high pollutant removal effect, it has been widely used. But A 2 During the operation of the O process, the removal rate of nitrogen and phosphorus is difficult to increase, and cannot meet the water quality standards for reuse, so advanced treatment is urgently needed; at the same time, the content of suspended solids in the effluent is easily affected by the mud-water separation effect of the secondary settling tank, and the secondary settling tan...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F3/00C02F3/10C02F3/32C02F3/12
CPCY02W10/10
Inventor 田禹李俐频孙丽叶雪松
Owner HARBIN INST OF TECH
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