View tower type device for water aeration and biological purification, and purification method

A biological purification, aquatic plant technology, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc. and other problems, to achieve the effect of good landscape aesthetics, increased dissolved oxygen concentration, and low construction cost.

Inactive Publication Date: 2014-06-04
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a landscape tower type water body aeration and biological purification device and purification method, and its purpose is to overcome the defects of low dissolved oxygen concentration in the constructed wetland water body and unsatisfactory sewage purification treatm

Method used

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  • View tower type device for water aeration and biological purification, and purification method
  • View tower type device for water aeration and biological purification, and purification method
  • View tower type device for water aeration and biological purification, and purification method

Examples

Experimental program
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Embodiment

[0038]A pilot test was carried out in a rural sewage treatment plant in southern Jiangsu, with a daily treatment capacity of 500 tons. The landscape tower water body aeration and biological purification device adopts a three-story circular tower structure, and the specific dimensions are as follows: the height of the overflow pool is 0.25m, the radius is 0.25m, the width of the functional layer is 1.0m, and the depth is 0.5m, of which the width of the biosphere purification area is 0.8m, and the width of the landscape aquatic plant area is 0.2m. .

[0039] Under the conditions of this example, after 10 days of operation, the landscape tower-type water body aeration and biological purification device reached a stable state, and the concentration of main pollution indicators in the influent and effluent water is shown in the table below. From the example data, it can be seen that the concentration of dissolved oxygen in the water body has increased significantly. Basically reach...

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PUM

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Abstract

The invention relates to a view tower type device for water aeration and biological purification. The structure of the view tower type device is a tower type structure, and the device comprises a water outlet 1, a spill pit 2 and an outlet channel 5, wherein the water outlet 1 is formed at the center of the spill pit 2, and the outlet channel 5 is communicated with the water outlet 1; a plurality of functional layers are arranged to surround the spill pit 2, each functional layer comprises a biological ball purification region 3 and a landscape aquatic plant region 4, and the landscape aquatic plant region 4 is arranged to surround the biological ball purification region, one end of the spill pit 2 is connected with a water duct 7, and a water pump 6 is mounted at the other end of the water duct 7. The view tower type device has the advantages that the dissolved oxygen concentration in sewage is improved by virtue of free wall fall, and a biological enhanced treatment function is added so that the treatment efficiency of constructed wetlands can be improved obviously and the water quality of the sewage plant effluent can be improved. Compared with existing techniques, the landscape functions of the constructed wetlands are not damaged, and the landscape effect of the constructed wetlands and the sewage plants also are added. In addition, the view tower type device for water aeration and biological purification is simple in structure, low in construction cost and convenient to repair.

Description

technical field [0001] The invention relates to a landscape tower type water body aeration and biological purification device and purification method, belonging to the technical field of sewage purification treatment. Background technique [0002] Constructed wetlands have the characteristics of low investment, low energy consumption, large buffer capacity, and simple process, and have been widely used at home and abroad. Constructed wetlands outside of China usually adopt a planar structure. The sewage stays in the wetland for a long time, the water flow is relatively gentle, and the plant roots and fillers are soaked in water for a long time, resulting in a low level of dissolved oxygen in the constructed wetland matrix, which limits the effect of wetland sewage treatment and increases Constructed wetland area. At present, the aeration and oxygenation of artificial wetlands is mainly realized by cascade water drop oxygenation, aeration pipes arranged at the bottom, and ae...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F3/34
Inventor 王沛芳王超钱进侯俊范秀磊
Owner HOHAI UNIV
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