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Method for enhancing degradability of antibiotics and hormones in livestock cultivating waste water

A technology for livestock and poultry breeding wastewater and antibiotics, which is applied in the field of improving the degradability of antibiotics and hormones in livestock and poultry breeding wastewater, can solve the problems that have not yet been achieved, and achieve the effects of easy grasp, change of structure, and simple operation and operation methods of equipment

Inactive Publication Date: 2012-06-13
SOUTHWEST UNIVERSITY
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Problems solved by technology

But so far, there is no research report on the method of improving the degradability of antibiotics and hormones in livestock and poultry wastewater by microwave treatment

Method used

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Examples

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Effect test

Embodiment

[0014] Take pig farm wastewater containing various antibiotics and hormones, adjust the pH value of the wastewater to 4 with HCl solution with a mass ratio concentration of 1%, add hydrogen peroxide and ferrous sulfate, the final concentration of hydrogen peroxide is 40mg / L, and the final concentration of ferrous ions is 12mg / L, adjust the microwave power to medium heat (445 watts) for 2 minutes. The test results showed that the removal rates of aureomycin, tetracycline, oxytetracycline and olaquindox in wastewater reached 88.4%, 93.9%, 91.6% and 67.2% respectively, and the biodegradability of wastewater was significantly improved (BOD 5 / COD increased from 0.20 to 0.42). At the same time, it has a certain removal effect on COD, and the removal rate is 46.8%.

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Abstract

The invention provides a method for enhancing the degradability of antibiotics and hormones in livestock cultivating waste water, belonging to the technical field of water pollution treatment. In the method, waste water is treated under the action of microwaves for a short time interval (2-5 minutes), so that the structural and chemical properties of the antibiotics and hormones are changed quickly, the bio-toxicity of the antibiotics and hormones is reduced, and degradability of the antibiotics and hormones is enhanced; and equipment is simple and readily-available, a key technology is easy to grasp, an equipment running method is easy, investment is small, and energy is saved.

Description

technical field [0001] The invention relates to the technical field of livestock and poultry breeding wastewater treatment, in particular to a method for improving the degradability of antibiotics and hormones in livestock and poultry breeding wastewater. Background technique [0002] In the process of intensive and large-scale livestock and poultry breeding, although antibiotics and hormones are beneficial to reduce livestock and poultry diseases and promote the growth of livestock and poultry organisms, due to the drive of economic interests, weak regulatory measures and lack of scientific knowledge, abuse, Excessive use of the above-mentioned drugs in accordance with national requirements is common. With the advancement of science and technology, people have gradually discovered that the use of antibiotics and hormones as feed additives has caused serious negative consequences to the breeding environment. Antibiotics and hormones enter the animal's digestive tract along ...

Claims

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Application Information

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IPC IPC(8): C02F9/08C02F1/30C02F1/66C02F103/20
Inventor 杨志敏陈玉成肖广全田伟何娟严冠雄
Owner SOUTHWEST UNIVERSITY
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