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A membrane-based sewage nitrogen and phosphorus removal system

A technology for nitrogen and phosphorus removal and sewage, applied in the direction of biological water/sewage treatment, water/sludge/sewage treatment, water pollutants, etc., can solve the increased uncertainty of sewage reaction, low efficiency of sewage treatment, biochemical reaction time Long and other issues, to achieve the effect of good practicability, acceleration efficiency, and acceleration reaction efficiency

Active Publication Date: 2022-07-19
HAITIAN WATER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of sewage treatment by membrane bioreactor, sewage treatment is often carried out in a large dyeing tank with uniform sewage mixing. With the sewage treatment, there is a concentration difference on the membrane surface of the membrane bioreactor, and the biochemical reaction takes a long time, which leads to Inefficiency in sewage treatment
Due to the distribution of oxygen on the membrane and the distribution of microbial colonies, once the product supply is not timely during the biochemical reaction, the reaction will be inhibited, and even the bacteria will die, and the uncertainty of the sewage reaction will increase.

Method used

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  • A membrane-based sewage nitrogen and phosphorus removal system
  • A membrane-based sewage nitrogen and phosphorus removal system
  • A membrane-based sewage nitrogen and phosphorus removal system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A membrane-based sewage nitrogen and phosphorus removal system, including an anaerobic tank 8, an aerobic tank 9, and an aerated membrane reaction tank 10, such as Figure 3-5 As shown, the aeration membrane reaction tank 10 includes a tank body 13, aeration pipe racks, and hollow fiber membrane filaments; such as Figure 4 As shown, the aeration pipe frame includes a branch pipe frame 18 and a branch pipe frame 19. The outer side of the branch pipe frame 18 is connected with a number of rows of branch pipe frames 19 in the circumferential direction, and the outer side of the branch pipe frame 18 is vertical from top to bottom A number of branch pipe racks 19 are communicated with each other, the outer side wall of the branch pipe rack 19 is provided with a number of ventilation holes, and the free end is a closed end, such as Figure 5 As shown in the figure, hollow fiber membrane filaments in a triangular prism-like structure are arranged on the pipe racks 19, and the...

Embodiment 2

[0044] This embodiment is optimized on the basis of Embodiment 1, such as figure 2 As shown, the aeration pipe rack further includes a main pipe rack 14, the main pipe rack 14 is respectively connected with a plurality of sub pipe racks 18 through a distribution valve, and the main pipe rack 14 is connected with the aeration device. The anaerobic tank 8 and the aerobic tank 9 are respectively communicated with the anaerobic pipe frame 20 and the aerobic pipe frame 21 through the diverter valve, and the aeration pipe frame, the anaerobic pipe frame 20 and the aerobic pipe frame 21 are all suspended at the bottom. set up. The bottom of the pool body 13 is provided with a cyclone device 16 , the bottom of the pool body 13 is provided with a sewage outlet 17 , and the upper portion of the pool body 13 is provided with a drain port. A dissolved oxygen tester and a pH meter are respectively provided between the inner sides of each adjacent row of hollow fiber membrane fibers and t...

Embodiment 3

[0049] This embodiment is optimized on the basis of Embodiment 1 or 2, and further includes an SBR reactor 11, the SBR reactor 11 is filled with fillers, and the fillers are loaded with aerobic granular sludge, and the tank body 13 The water outlet is communicated with the water inlet of the SBR reactor 11.

[0050] The aeration membrane reaction tank 10 cooperates with the SBR reactor 11 to produce a synergistic effect. The nitrification and denitrification in the aeration membrane reaction tank 10 are carried out synchronously, and the SBR reactor 11 is also in simultaneous nitrification and denitrification. The sewage treated by the aeration membrane reaction tank 10 provides sufficient reactants for the SBR reactor 11, and the reaction principle produces continuous synergy, improves the reaction efficiency, and has good practicability.

[0051] The other parts of this embodiment are the same as those of the above-mentioned Embodiment 1 or 2, and thus are not repeated here....

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Abstract

The invention discloses a membrane-based sewage denitrification and phosphorus removal system, comprising an anaerobic tank, an aerobic tank, and an aeration membrane reaction tank. The aeration membrane reaction tank includes a tank body, an aeration pipe frame, and a hollow fiber membrane. The aeration pipe frame includes a branch pipe frame and a branch pipe frame, and the hollow fiber membrane wire in a triangular prism structure is arranged on the branch pipe frame; an anaerobic pipe frame is arranged between the inner sides of each adjacent row of branch pipe frames, An aerobic pipe frame is arranged on the inner wall of the tank close to the outside of the hollow fiber membrane, and the anaerobic pipe rack and the aerobic pipe rack are respectively provided with liquid spray heads; the anaerobic tank passes through the anaerobic pipe rack and the pool The aerobic tank is communicated with the tank body through the aerobic pipe frame, and the top of the tank body is sealed and provided with a one-way air outlet. The invention feeds the aerobic zone and the anaerobic zone of the aeration membrane reaction tank pertinently, and carries out the reaction of denitrification and dephosphorization respectively, instead of being limited to the layer-by-layer progressive treatment, and improves the reaction efficiency , has better practicability.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a membrane-based sewage nitrogen and phosphorus removal system. Background technique [0002] In recent years, domestic sewage and industrial sewage contain a large amount of nitrogen and phosphorus, which leads to eutrophication of water bodies. There are even black and odorous phenomena in daily river ditches, causing environmental pollution. There are many reasons for eutrophication of water bodies. In the agricultural field, the use of agricultural nitrogen and phosphorus fertilizers leads to eutrophication of soils, which indirectly enriches agricultural water sources with nitrogen and phosphorus. In the field of industrial production, phosphorus pollutants are discharged with water. [0003] With the improvement of the quality of life, my country has paid more and more attention to environmental issues. The "Plan for Prevention and Control of Water Po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30C02F3/20C02F3/12C02F101/38C02F101/16
CPCC02F3/303C02F3/305C02F3/308C02F3/201C02F3/1268C02F3/1263C02F2101/16C02F2101/38C02F2209/06Y02W10/10
Inventor 孙晓蕾蒋沛廷钟铭汪锐张慧敏费功全彭玉梅钟亚萍
Owner HAITIAN WATER GRP CO LTD
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