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

A self-refluxing, low-energy-consumption technology, applied in chemical instruments and methods, energy and wastewater treatment, sustainable biological treatment, etc., can solve the problems of high labor and material costs, low ammonia nitrogen and total nitrogen removal efficiency, etc. Resourceful Effects

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

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Problems solved by technology

[0012] At present, the treatment process adopted by domestic urban sewage treatment plants has low removal efficiency of ammonia nitrogen and total nitrogen, especially the removal efficiency of total nitrogen is generally lower than 80%. The upgrading and transformation of treatment plants is imperative, and there are two ways to upgrade and transform sewage treatment plants. One is to expand the capacity of sewage treatment plants; 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 self-refluxing circulation nitrification method and apparatus
  • Low-energy and intelligent three-dimensional ecological self-refluxing circulation nitrification method and apparatus
  • Low-energy and intelligent three-dimensional ecological self-refluxing circulation nitrification method and apparatus

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Embodiment 1

[0037] see Figure 4 , as the structure of the first embodiment of the three-dimensional ecological self-reflux circulation nitrification unit of the invention, the circulation box 104 is suspended in the anoxic pool 2, and the top is provided with a rectangular plant basket 116, and the hydroponic plants 4 are planted in the plant basket 116 Inside. 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, it can Tighten around the...

Embodiment 2

[0047] see Figure 9 , this embodiment is basically the same as Embodiment 1, the difference is that the circulation box 104 is fixedly installed in the anoxic pool 2, and the top is provided with a rectangular plant basket 116, and the hydroponic plants 4 are planted in the plant basket 116 Inside. 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 integrated in the anoxic pool 2 , the plant basket support 115 is connected and fixed to the circulation box 104 , and the circulation box 104 is fixed in the anoxic pool 2 through the supporting stand 107 . Same as embodiment one, this embodiment is in the anoxic pool 2 in the sewage treatment system, a plurality of three-dimensi...

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Abstract

The invention relates to a low-energy and intelligent three-dimensional ecological self-refluxing circulation nitrification method and apparatus. Wind driven generators are disposed aside of an anaerobic tank; and a solar power installation is disposed on a roof above the anaerobic tank. The tank is provided with at least one three-dimensional ecological self-refluxing 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 an aerobic zone, a facultative zone, a sedimentation zone and an anaerobic zone from inside to outside, wherein the aerobic zones are provided with aeration components. The sewage flows through the anaerobic zone to the aerobic zone and enters the facultative zone for reaction and primary sedimentation after reacting in the aerobic zone through an aeration effect; partial of the sewage mixed liquid is aerated and enters the aerobic zone again; the other partial of the sewage self-refluxes to the anaerobic tank through a sludge diversion pipe; and a supernatant in the sedimentation zone finally flows out from a collecting pipe. The aeration power and gas-water density difference allows the sewage realizing self-refluxing circulation nitrification among every zone, so that pollutants can be effectively removed and the sewage can meet discharge indexes such as deodorization, nitrogen and phosphorus removal and total nitrogen in upgrading and reconstruction of municipal sewage plants.

Description

technical field [0001] The invention relates to the field of waste water treatment, in particular to an ecological purification treatment method used in the upgrading and transformation of sewage treatment plants, especially in the upgrading and transformation of urban sewage treatment systems for deodorization, phosphorus, denitrification and total nitrogen and other discharge indicators, and its adoption device designed by this 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 P...

Claims

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Application Information

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Patent Type & Authority Applications(China)
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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