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A method for removing antibiotic resistance genes in livestock and poultry wastewater

A technology for antibiotic resistance and waste water, which is applied in animal husbandry waste water treatment, chemical instruments and methods, animal processing waste water treatment, etc. It can solve the problems of complex operation, secondary pollution, and high removal cost, and achieve cheap and easy raw materials, reduce Effects of losing and gaining weight

Active Publication Date: 2020-08-18
BIOGAS SCI RES INST MIN OF AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned problems in the prior art, the present invention provides a method for removing antibiotic resistance genes in livestock and poultry wastewater, which can effectively solve the problems of low removal efficiency, high removal cost, long removal time, and Complicated operation and prone to secondary pollution

Method used

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  • A method for removing antibiotic resistance genes in livestock and poultry wastewater
  • A method for removing antibiotic resistance genes in livestock and poultry wastewater

Examples

Experimental program
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Embodiment 1

[0024] A method for removing antibiotic resistance genes in livestock and poultry wastewater, comprising the following steps:

[0025] (1) Add copper sulfate pentahydrate to hot water at 35°C, stir until copper sulfate pentahydrate dissolves, then add iron powder with a particle size of 100 μm to the solution, continue stirring until the solution turns reddish brown, let stand, pour The supernatant was discharged, and the remaining solid matter was rinsed with tap water to obtain nano-copper cluster particles; wherein, the addition of copper sulfate pentahydrate in every liter of hot water was 6g, and the addition of iron powder was 8g;

[0026] (2) Take the livestock and poultry waste water after anaerobic digestion treatment, heat it to 23°C, keep it for 4min, then add 8g of the nano-copper cluster particles obtained in step (1) to it, stir at a rotating speed of 250r / min 20min is enough.

Embodiment 2

[0028] A method for removing antibiotic resistance genes in livestock and poultry wastewater, comprising the following steps:

[0029] (1) Add copper sulfate pentahydrate to hot water at 45°C, stir until copper sulfate pentahydrate dissolves, then add iron powder with a particle size of 140 μm to the solution, continue to stir until the solution turns reddish brown, let stand, pour The supernatant was discharged, and the remaining solid matter was rinsed with tap water to obtain nano-copper cluster particles; wherein, the addition of copper sulfate pentahydrate in every liter of hot water was 9g, and the addition of iron powder was 12g;

[0030] (2) Take the livestock and poultry wastewater after anaerobic digestion treatment, heat it to 27° C. and keep it for 10 min, then add 12 g of the nano-copper cluster particles obtained in step (1) to it, and stir at a rotating speed of 250 r / min. 50min is enough.

Embodiment 3

[0032] A method for removing antibiotic resistance genes in livestock and poultry wastewater, comprising the following steps:

[0033] (1) Add copper sulfate pentahydrate to hot water at 40°C, stir until copper sulfate pentahydrate dissolves, then add iron powder with a particle size of 120 μm to the solution, continue to stir until the solution turns reddish brown, let stand, pour The supernatant was removed, and the remaining solid matter was rinsed with tap water to obtain nano-copper cluster particles; wherein, the addition of copper sulfate pentahydrate in each liter of hot water was 7.8 g, and the addition of iron powder was 10 g;

[0034] (2) Take the livestock and poultry wastewater treated by the autotrophic denitrification reactor, heat it to 27° C. and keep it for 7 min, then add 10 g of the nano-copper cluster particles obtained in step (1) to it, and heat it at 250 r / min. Stir at the speed of 30min.

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Abstract

The invention provides a method for removing antibiotic resistance genes in livestock and poultry wastewater, comprising the following steps: adding copper sulfate pentahydrate to hot water at 35-45°C, stirring until the copper sulfate pentahydrate dissolves, and then adding iron to the solution powder, continue to stir until the solution turns reddish brown, let it stand, pour out the supernatant to obtain nano-copper cluster particles; take livestock and poultry wastewater, heat it to 23-27°C, keep it for 4-10min, and then add the step The nano-copper cluster particles prepared in (1) are stirred for 20-50min. The method has the advantages of high removal efficiency, low removal cost, short removal time, simple operation and no secondary pollution.

Description

technical field [0001] The invention belongs to the technical field of antibiotic resistance gene removal, in particular to a method for removing antibiotic resistance genes in livestock and poultry wastewater. Background technique [0002] In recent years, the abuse of antibiotics has induced the production of antibiotics resistance genes (ARGs) in animals, thereby accelerating the spread of resistance genes among bacteria in the environment. At present, antibiotic resistance genes are regarded as a new type of environmental pollutants. , the spread and diffusion in different environmental media may be more harmful to the environment than antibiotics themselves. [0003] The research on ARGs removal technology is still in its infancy. The reported ARGs removal technologies mainly include biological, natural, physical, chemical and other treatment technologies, and there are great limitations. Biological treatment technology mainly includes anaerobic treatment and aerobic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/74C02F1/50B22F9/24B22F1/00B82Y40/00B01J23/745
CPCC02F1/74C02F1/50C02F1/725B22F9/24B82Y40/00B01J23/745B01J35/006B01J35/0073C02F2103/22C02F2103/20C02F2303/04B22F1/054
Inventor 张云红邓良伟王兰王文国
Owner BIOGAS SCI RES INST MIN OF AGRI
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