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Automatic aeration system for underflow type artificial wet land

A technology of artificial wetland and automatic oxygenation, applied in water aeration, sustainable biological treatment, water/sludge/sewage treatment, etc. Nitrogen capacity and other issues, to achieve the effect of convenient manufacture and installation, simple structure, and improved denitrification effect

Inactive Publication Date: 2006-06-28
NANJING UNIV
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Problems solved by technology

The supply of oxygen in subsurface wetlands mainly depends on the rhizosphere transport of plants. Therefore, the interior of subsurface wetlands, especially the non-rhizosphere area, is often in an anaerobic state, which limits the growth of nitrifying bacteria and the occurrence of nitrification reactions.
Then, whether the nitrification reaction can go smoothly directly determines the denitrification capacity of the wetland system; therefore, increasing the dissolved oxygen in the subsurface constructed wetland can make the nitrification reaction of microorganisms go smoothly, and then denitrification by microorganisms will Nitrogen removal, thereby improving the efficiency of nitrogen removal, but there is no related aeration system available

Method used

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  • Automatic aeration system for underflow type artificial wet land
  • Automatic aeration system for underflow type artificial wet land
  • Automatic aeration system for underflow type artificial wet land

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] see figure 1 , figure 2 In this embodiment, No. I aerator tank 1, aerator 2 and No. II aerator tank 3 are arranged sequentially from the waste water input pipe 5 to the water inlet 6 of the submerged constructed wetland according to the drop of natural water flow. Wherein, the inlet of No. I aerator tank 1 communicates with the waste water input pipe 5, and the outlet of No. II aerator tank 3 communicates with the water inlet 6 of the submerged constructed wetland; an aeration pipeline is set in the constructed wetland 4.

[0025] Referring to Fig. 3 (A), Fig. 3 (B), in the present embodiment, aerator 2 is to be connected on the connecting pipe 7 between No. I aerator water tank 1 and No. II aerator water tank 3, jet flow is set device 8. In a specific implementation, a tapered joint 12 and a tapered joint 13 are arranged in series in the mid...

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Abstract

An automatic oxygen-enriching system for the undercurrent-type artificial wetland features that such units are sequentially arranged between the sewage inlet pipe and the water inlet of artificial wetland as water tank A, oxygen-enriching unit consisting of jet devices and water tank B, and the oxygen-enriching pipeline in artificial wetland is composed of at least two layers of horizontal pipes and the vertical tubes with top end which is extended out of the ground surface and bent by 180 deg.

Description

technical field [0001] The invention relates to a system capable of automatically increasing dissolved oxygen in water, in particular to an underflow type artificial wetland oxygenation system capable of automatically increasing dissolved oxygen in waste water and improving denitrification efficiency. Background technique: [0002] Constructed wetland is a new type of wastewater treatment process developed in the 1970s and 1980s. This method has the characteristics of "one high and three lows", that is, high efficiency, low investment, low operating cost, and low maintenance technology. In recent years, it has been successfully used in the treatment of oily wastewater, domestic sewage, urban storm runoff, mine wastewater, farm wastewater, and lake pollution prevention and control. [0003] At present, according to the different ways of wastewater flow, there are mainly three types of constructed wetland wastewater treatment processes: surface flow (SFW) process, subsurface f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F7/00
CPCY02W10/10
Inventor 孙亚兵冯景伟李署田园春李茂赵大勇马海云帖靖玺张继彪
Owner NANJING UNIV
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