Artificial wetland capable of strongly removing antibiotic and resistance gene from culture waste water

A technology of constructed wetlands and constructed wetland systems, applied in the field of constructed wetland systems, can solve problems such as poisoning effects, allergic reactions, and interference with human physiological functions, and achieve the effects of increasing pollutant loads, stable operating parameters, and enriching denitrification pathways

Inactive Publication Date: 2013-10-02
INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

At the same time, in the long-term exposure to low-dose antibiotics, the human body will produce

Method used

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  • Artificial wetland capable of strongly removing antibiotic and resistance gene from culture waste water
  • Artificial wetland capable of strongly removing antibiotic and resistance gene from culture waste water

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specific Embodiment approach 1

[0031] Specific embodiment 1: Sewage is pumped into the constructed wetland pool 1 by an inlet pump, and water is distributed evenly on the surface of the red soil layer 2 through branch-shaped perforated water distribution pipes 5, and then the sewage flows through the waste brick-zeolite mixed packing layer 3 through the deflector 6 is collected into the catchment area 7, and finally the effluent is discharged from the outlet pipe 8. The outlet water level in the constructed wetland system can be adjusted through the outlet pipe 8.

specific Embodiment approach 2

[0032] Specific implementation manner two: combination figure 1 with figure 2 To illustrate this embodiment, the patent of the present invention includes a vertical subsurface flow constructed wetland model. The filler layer of the system includes an upper layer and a lower layer (ie, red soil layer 2 and waste brick-zeolite mixed filler layer 3), and the upper layer is 10-20 cm thick red soil layer 2. ; The lower layer is 50-100 cm thick waste bricks-zeolite mixed packing layer 3, particle size range: 5-30 mm. The filler filling method is "positive and negative particle size mixing" with large particle size gradation difference. The filling method of the large particle size gradation difference "positive and negative particle size mixing" is: the lower layer filler has the largest particle size, The upper filler has the smallest particle size.

specific Embodiment approach 3

[0033] Specific implementation mode three: combination figure 1 with figure 2 To explain this embodiment, this embodiment is provided with a water outlet pipe 8 in the constructed wetland system. The water outlet pipe 8 can create an unsaturated layer and a saturated layer in the waste brick-zeolite mixed packing layer 3 in the system by adjusting the water level, thereby achieving The effective synergy of aerobic ammonia oxidizing bacteria, nitrite oxidizing bacteria, anaerobic ammonia oxidizing bacteria and denitrifying bacteria enriches the nitrogen removal pathways in the system and greatly improves the ammonia nitrogen removal efficiency of the patent of the present invention.

[0034] Specific implementation manner 4: Combination figure 1 with figure 2 To explain this embodiment, the branch-shaped perforated water distribution pipe 5 is provided on the surface of the red soil layer 2 of the constructed wetland. The arrangement of the branch-shaped perforated water distribut...

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Abstract

The invention discloses an artificial wetland system capable of strongly removing an antibiotic and an antibiotic resistance gene from culture waste water, and relates to waste water treatment equipment which is an artificial wetland ecological treatment device capable of efficiently removing nitrogen and phosphorus elements, high-residual veterinary antibiotic contents and the antibiotics resistance gene from the livestock culture waste water. The system comprises a vertical subsurface flow artificial wetland device, adopts a filling manner of large size grading difference 'positive and negative particle size mixture' filling and paving, and takes red soil, waste bricks, and zeolite as main wetland fillings; the red soil, the waste bricks and the zeolite have large specific surface areas, good adsorptive capacity to nitrogen, phosphorus, the antibiotic and the antibiotic resistance gene, and high biological holding; and continuous, high-efficiency, and steady operation of the artificial wetland ecological system is ensured. The system has the advantages of low cost, low energy consumption, low possibility of blocking, high removal efficiency of the antibiotic and the antibiotic resistance gene, high efficiency of denitrification and dephosphorization, small occupied area, simple structure, convenient operation management and the like.

Description

Technical field [0001] The patent of the invention relates to a constructed wetland system that strengthens the removal of antibiotics and antibiotic resistance genes in aquaculture wastewater. It belongs to the field of water pollution control. Background technique [0002] my country is a big country in livestock and poultry breeding. With the continuous economic development, the livestock and poultry breeding industry has also developed rapidly. However, the annual discharge of breeding wastewater (especially pig wastewater) is also increasing. Pig-raising wastewater contains a large amount of organic matter, high concentration of nitrogen and phosphorus, residual antibiotics and pathogens. If it is directly discharged without treatment, it will cause serious pollution of the local water environment and farmland, and there is a great ecological safety risk. The veterinary antibiotics in the veterinary is considered to be a subtle, potential, cumulative pollutant. [0003] Vete...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F3/34
CPCY02W10/10
Inventor 刘琳刘超翔王振
Owner INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
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