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Low-energy and intelligent three-dimensional ecological external circulation nitrification method and apparatus

A technology of external circulation and low energy consumption is applied in the field of ecological purification treatment methods and devices designed by the method, which can solve the problems of high time, high labor and material cost, low ammonia nitrogen removal efficiency, etc., and achieve the effect of abundant resources.

Active Publication Date: 2013-12-11
SHENZHEN DIDA WATER ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] At present, the treatment process adopted by the domestic urban sewage treatment system, the removal efficiency of ammonia nitrogen and total nitrogen is low, especially the removal efficiency of total nitrogen is generally lower than 80%. The upgrading and transformation of the treatment system is imperative, and there are two ways to upgrade and transform the sewage treatment system. One is to expand the capacity of the sewage treatment system, and the other is to develop high-efficiency new denitrification materials and to deodorize, dephosphorize, denitrify and total nitrogen. Efficient process, but it takes a certain amount of time and high manpower and material costs

Method used

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  • Low-energy and intelligent three-dimensional ecological external circulation nitrification method and apparatus

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Embodiment 1

[0038] see Figure 4 , as the structure of the first embodiment of the three-dimensional ecological external circulation nitrification unit of the invented device, the circulation and aerobic tank 104 is suspended in the contact oxidation tank 2, and the top is provided with a rectangular plant basket 116, and the hydroponics 4 are planted on the plant Inside the basket 116 . For details, see Figure 5-Figure 8 , the plant basket 116 is fixed by the plant basket bracket 115, with plant basket handles 1161 at both ends, and the four corners of the plant basket bracket 115 are respectively provided with unit connection slots 101, which can connect each internal processing unit to contact oxidation through the connector The pool 2 is connected in one body, and the plant basket support 115 is fixed on a suspender 114. The suspender 114 is an element that can be suspended in the water at the bottom of the plant basket support 115. By pressing the plate 1141 and the fastener 1142, ...

Embodiment 2

[0048] see Figure 9 , this embodiment is basically the same as Embodiment 1, the difference is that the circulation and aerobic tank 104 is fixedly arranged in the contact oxidation tank 2, and the top is provided with a rectangular plant basket 116, and the hydroponics 4 are planted on the plant Inside the basket 116 . Same as the first embodiment, the plant basket 116 is fixed by the plant basket bracket 115, and the two ends are provided with the plant basket handle 1161, and the four corners of the plant basket bracket 115 are respectively provided with the unit connection slots 101, and each internal processing can be connected through the connectors. The unit 1 is connected in one body in the contact oxidation tank 2 , the plant basket bracket 115 is connected and fixed with the circulation and aerobic box 104 , and the circulation and aerobic box 104 is fixed in the contact oxidation tank 2 through the supporting stand 107 . Same as Example 1, this embodiment is in th...

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Abstract

The invention relates to a low-energy and intelligent three-dimensional ecological external circulation nitrification method and apparatus for upgrading and reconstruction of a sewage treatment system. A contact oxidation tank for sewage treatment is provided with a solar power installation and wind driven generators so as to provide energy for operation of the sewage treatment system. The tank is provided with at least one three-dimensional ecological external circulation nitrification processing unit; each unit is divided into an ecological deodorization zone and a circulation nitrification reaction zone from top to bottom; each reaction zone is divided into a facultative sedimentation zone and a central sedimentation zone from inside to outside; and the contact oxidation tank is provided with aeration components to form an aerobic fluidized zone. A controller is introduced to control flow rate, dissolved oxygen, temperature and sludge concentration in the tank during sewage treatment, so that the sewage can flow circularly for a plurality of times between the aerobic zone and the facultative sedimentation zone to form a nitrification reaction circulation. A supernatant after reaction flows out from a collecting pipe. The sewage can realize the circulation nitrification by aeration power, so that pollutants can be effectively removed and the sewage can meet discharge indexes for upgrading and reconstruction of municipal sewage plants.

Description

technical field [0001] The invention relates to the field of waste water treatment, in particular to the upgrading and transformation of sewage treatment systems, especially to an ecological purification treatment method with strict discharge indicators such as deodorization, phosphorus, denitrification and total nitrogen in the upgrading and transformation of urban sewage plants and the use of the method Apparatus designed by the method. Background technique [0002] The water pollution assessment results of key river basins in 2008 showed that 18.9% and 22.1% of the sections in key river basins had ammonia nitrogen exceeding the standard value of Class V, and ammonia nitrogen has exceeded the chemical oxygen demand (COD) and has become the primary indicator affecting the quality of surface water environment. In the national "Twelfth Five-Year" environmental protection plan, the types of total amount control of major pollutants will be added. During the "Twelfth Five-Year ...

Claims

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Application Information

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IPC IPC(8): C02F3/30C02F3/32
CPCY02W10/10Y02W10/37
Inventor 彭云龙曾贤桂陈兆勇
Owner SHENZHEN DIDA WATER ENG
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