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Constructed Wetland System and Purification Method for Enhanced Nitrogen Removal of Rural Domestic Sewage

A technology of artificial wetland system and domestic sewage, which is applied in the field of artificial wetland system and purification of rural domestic sewage treatment, can solve the problems of poor sewage purification effect, unsatisfactory and other problems, so as to reduce self-recovery time and enhance self-recovery time. Denitrification function, low price effect

Active Publication Date: 2018-12-25
AGRO ENVIRONMENTAL PROTECTION INST OF MIN OF AGRI
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Problems solved by technology

[0008] There are not many constructed wetlands used for rural sewage in my country. The wetland substrates reported in the literature are either expensive, such as activated carbon, gravel, quartz sand, etc., or the effect of purifying sewage is not very good, such as river sand. Satisfactory

Method used

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  • Constructed Wetland System and Purification Method for Enhanced Nitrogen Removal of Rural Domestic Sewage
  • Constructed Wetland System and Purification Method for Enhanced Nitrogen Removal of Rural Domestic Sewage

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Embodiment Construction

[0037] The rural domestic sewage artificial wetland system based on rural waste red bricks and straws of the present invention includes at least one vertical flow artificial wetland device, which can realize sewage purification and constitutes a domestic sewage purification device. Where more than two vertical flow constructed wetland devices are included, the devices can be arranged in parallel in the system. Such as figure 1 As shown, the vertical flow constructed wetland device includes a box body, and in the box body, from bottom to top, it includes a supporting layer 1, a second layer 2, a third layer 3 and an upper layer 4, and each layer adopts different The particle size of the rural building waste red bricks and rural waste straw for filling. Among them, from the bottom to the top, the particle size of the filler gradually becomes smaller.

[0038] Each layer that is laid sequentially from bottom to top, an embodiment of its laying method is as follows:

[0039] Th...

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Abstract

The invention provides a rural domestic sewage artificial wetland system for carrying out reinforced denitrification and a purifying method. The system comprises at least one wetland bed. Each wetland bed is formed by filling red bricks and straw as filler. The particle size of the filler is gradually reduced from bottom to top. Denitrification bacterial liquid is added to the surface of each wetland bed, and / or denitrification bacterial liquid is added into each wetland bed. According to the method, domestic sewage is distributed on the wetland beds, purified water is obtained from the bottoms of the wetland beds, and before the domestic sewage is distributed, the denitrification bacterial liquid is added to the surface of each wetland bed, and / or the denitrification bacterial liquid is added into each wetland bed. By means of the system and the method, the denitrification bacterial liquid is added to the surface of each wetland bed, and / or the denitrification bacterial liquid is added into each wetland bed, reinforced denitrification is carried out, and the denitrification function of the system can be enhanced.

Description

technical field [0001] The invention relates to a sewage treatment technology, in particular to an artificial wetland system and a purification method for rural domestic sewage treatment. Background technique [0002] Water resources are relatively scarce in our country, and the per capita water resources are only 1 / 4 of the world's per capita water resources. According to the Bulletin on the State of the Environment in China, the domestic water environment is seriously polluted, especially the river basins have been polluted. With the improvement of the quality of life, pollution from living sources has accounted for the main part of the total pollution, and it shows an increasing trend year by year. The rural population occupies a large proportion in our country. At present, the rural population in our country lives in a relatively scattered manner, with a large population. There are almost no domestic sewage collection and treatment measures. Rural domestic sewage is alm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32C02F3/34C02F101/16
CPCC02F3/32C02F3/34C02F2101/16Y02W10/10
Inventor 陈昢圳华进城郑向群任天志刘月敏孙琎
Owner AGRO ENVIRONMENTAL PROTECTION INST OF MIN OF AGRI
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