Method for removing antibiotic resistance gene from water source water

An antibiotic resistance, water source water technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problems of unstable operation and poor resistance gene treatment effect, etc. achieve efficient processing

Inactive Publication Date: 2013-03-20
NANJING UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] What the present invention is to solve is to make up for the deficiencies of the current water source water purification process, improve the shortcomings of the existing technology such as poor treatment effect and unstable operation of the resistance gene, and provide a method that can quickly and efficiently process and effectively remove the antibiotic resistance gene. The water treatment process fills the gap in domestic and foreign related technologies for removing antibiotic resistance genes in water sources

Method used

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  • Method for removing antibiotic resistance gene from water source water

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Embodiment 1

[0051] In this embodiment, a certain drinking water source in the suburbs of Nanjing is treated as the purification object, and the specific steps are as follows:

[0052] (1) Coagulation and sedimentation

[0053] Collect source water into the coagulation sedimentation tank, use flocculant PAC and coagulant PAM for coagulation and sedimentation treatment, the dosage of the flocculant PAC is 3-5 mg / L source water, and the dosage of coagulant PAM The amount is 1 ~ 3mg / L source water; the supernatant obtained after precipitation enters the sand filter to further remove the turbidity of the water body;

[0054] (2) Sand filter

[0055] The effluent of step (1) enters the sand filter tank through a booster pump to further remove turbidity substances, microorganisms and antibiotic resistance genes;

[0056] (3)O 3 contact tower

[0057] The water after step (2) treatment enters the ozone contact tower and carries out ozonation reaction, and the initial concentration of ozone in...

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Abstract

The invention provides a method for removing antibiotic resistance gene from water source water. According to the method, the antibiotic resistance gene is removed through an entire set of processes comprising coagulating sedimentation, sand filtration, O3 contact tower processing, biological active carbon filtering tank processing, high-pressure CO2 disinfection, coagulating sedimentation, reverse osmosis filtering, and chlorination and water discharging. With the method, spreading of resistance gene in the environment can be effectively controlled, such that a problem of the harm of resistance gene spreading in water source water upon human health is solved, and a scientific and reliable technology is provided for human health and environment protection.

Description

technical field [0001] The invention relates to source water purification technology, in particular to a method for removing antibiotic resistance genes in source water. Background technique [0002] With the advancement of industrialization, water environment pollution and water resource shortage have become prominent problems worldwide, seriously restricting the sustainable development of social economy. Drinking water is a basic need for human survival and an important medium for spreading diseases. With the continuous improvement of people's living standards, people's requirements for the quality of drinking water are also getting higher and higher. Paying attention to water quality, drinking water and health is to meet the development needs of the times. [0003] The survey found that unpolluted water generally does not contain pathogenic microorganisms, and when the water is polluted, various pathogens enter the water with sewage containing human and animal excreta a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 耿金菊任洪强许柯丁丽丽
Owner NANJING UNIV
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