Wastewater treatment device and method of sequencing batch A/O (Anaerobic/Oxic) linked system for realizing partial nitrification of wastewater

A technology of short-range nitrification and linkage system, which is applied in the field of wastewater treatment devices of sequencing batch A/O linkage system, can solve the problems of complex operation procedures and many control parameters, and achieve the effects of precise control, simple process operation flow and easy operation.

Inactive Publication Date: 2014-10-22
吕慧 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing short-cut nitrification methods have the disadvantages of many control parameters, complicated operation procedures, stable influent water quality, and the need to add a small amount of organic carbon source or acid-base, etc.

Method used

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  • Wastewater treatment device and method of sequencing batch A/O (Anaerobic/Oxic) linked system for realizing partial nitrification of wastewater
  • Wastewater treatment device and method of sequencing batch A/O (Anaerobic/Oxic) linked system for realizing partial nitrification of wastewater
  • Wastewater treatment device and method of sequencing batch A/O (Anaerobic/Oxic) linked system for realizing partial nitrification of wastewater

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Effect test

Embodiment 1

[0058] Such as figure 1 As shown, a sequence batch type A / O linkage system wastewater treatment device for short-range nitrification of wastewater is provided with a regulating pool 1 and SBR reaction pools 2 and 3, and the SBR reaction pools 2 and 3 include the SBR reaction pool anoxic Zone 2 and SBR reaction pool aerobic zone 3;

[0059] The regulating tank 1 communicates with the anoxic zone 2 of the SBR reaction tank through the water inlet pump 1.2 and the first liquid flow meter 1.1 in turn;

[0060] The anoxic zone 2 of the SBR reaction tank communicates with the aerobic zone 3 of the SBR reaction tank through the overflow tank 2.4;

[0061] An aeration pipe 3.5 is provided at the bottom of the aerobic zone 3 of the SBR reaction tank, and the aeration pipe 3.5 is connected to the aerator 3.9 through a gas flow meter 3.8;

[0062] A decanter 3.7 is provided inside the aerobic zone 3 of the SBR reaction pool;

[0063] The bottom of the aerobic zone 3 of the SBR reacti...

Embodiment 2

[0089]Adopt the sequence batch type A / O linkage system wastewater treatment device and treatment method for realizing short-range nitrification of wastewater according to the present invention to treat wastewater, wherein the size of the regulating pool is B×H×L=470×500×440cm, and the total volume is 103,400 cm L. The size of the anoxic zone of the SBR reaction pool is 470×500×440cm, with an effective volume of 100,000L; the size of the aerobic zone is 470×500×1540cm, with an effective volume of 350,000L.

[0090] Take the landfill leachate from Xiaping Solid Waste Landfill in Shenzhen City, its pH is 8.01-8.65, NH 4 + -N concentration up to 1500~3000mg / L, BOD 5 / TN is less than 3 to 5, which is a typical waste water with high ammonia nitrogen concentration and low carbon nitrogen ratio.

[0091] (1) Use the nitrification sludge from Xiaping Leachate Treatment Plant of Shenzhen City as inoculation sludge and inject it into the aerobic zone and anoxic zone of the SBR reactio...

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Abstract

The invention particularly relates to a wastewater treatment device and method of a sequencing batch A / O (Anaerobic / Oxic) linked system for realizing partial nitrification of wastewater. The device is provided with an adjusting pool and an SBR (Sequencing Batch Reactor) reaction pool, wherein the SBR reaction pool is divided in an anaerobic region and an oxic region. The method for treating wastewater by using the wastewater treatment device specifically comprises the following steps that (1) wastewater enters into the adjusting pool; (2) wastewater in the adjusting pool is pumped into the anaerobic region of the SBR reaction pool through a water inlet pump for denitrification; and (3) a water flow in the anaerobic region of the SBR reaction pool overflows to the oxic region of the SBR reaction pool for linked water inlet; the oxic region of the SBR reaction pool adopts an operating mode of SBR for partial nitrification; in the water inlet stage of the oxic region of the SBR reaction pool, muddy water is simultaneously returned to the anaerobic region, backflow is stopped after water inflow in the oxic region is stopped, and effluent in the anaerobic region is overflowed to the oxic region, and the whole process is circulated like this. The carbon source in wastewater is fully used to denitrify in the anaerobic region of the SBR reaction pool.

Description

technical field [0001] The invention relates to a waste water treatment device, in particular to a waste water treatment device and method of a sequence batch A / O linkage system for realizing short-range nitrification of waste water. Background technique [0002] With the aggravation of water eutrophication and water shortage, the current domestic and foreign sewage discharge standards are strictly controlled, especially the requirements for nitrogen and phosphorus discharge are getting higher and higher. [0003] The most widely used biological denitrification method in existing sewage treatment is nitrification / denitrification technology, which is suitable for treating low-concentration urban domestic sewage. Among them, nitrification is mainly completed in two steps. First, NH 4 +-N is converted to NO under the action of ammonia nitrogen oxidizing bacteria (AOB) 2 --N, this step is called nitrite nitration; then NO 2 --N is converted to NO under the action of nitrite o...

Claims

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Application Information

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IPC IPC(8): C02F3/30
Inventor 孟了吕慧
Owner 吕慧
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