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Method used for removing antibiotics in breeding industry wastewater via anaerobic self-electrolysis

A technology for breeding wastewater and antibiotics, which is applied in the field of environmental pollution biological treatment and bioenergy, can solve the problems of pollution load, large animal antibiotics, and difficulty in breeding wastewater, and achieves mild operating conditions, low maintenance costs, and strong safety. Effect

Inactive Publication Date: 2015-10-28
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is a large pollution load of veterinary antibiotics in aquaculture wastewater, and antibiotics have serious obstacles to the stability of traditional anaerobic treatment of aquaculture wastewater, which makes it more difficult to treat aquaculture wastewater with conventional biochemical methods

Method used

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  • Method used for removing antibiotics in breeding industry wastewater via anaerobic self-electrolysis
  • Method used for removing antibiotics in breeding industry wastewater via anaerobic self-electrolysis
  • Method used for removing antibiotics in breeding industry wastewater via anaerobic self-electrolysis

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Effect test

Embodiment 1

[0029] A method for removing antibiotics by anaerobic self-electrolysis of aquaculture wastewater, the specific operation steps are as follows:

[0030] (1) Mix the simulated aquaculture wastewater and the anaerobic granular sludge supernatant at a volume ratio of 1:1, and start the anaerobic self-electrolysis reactor in batch mode under the conditions of external resistance 1000Ω and constant temperature of 30±1°C. The anaerobic self-electrolysis reactor mainly consists of two parts with a total volume of 1200mL. The upper part is a cylindrical glass tube, the outer wall of the glass tube has a small hole with a diameter of 1mm, and the opening rate is 15%, the lower part is an inverted cone, the bottom of the cylinder is provided with a water inlet, and the top side is provided with a water outlet. The outlet diameter is about 4mm. The inner side of the reactor constitutes the anode chamber, and the outer side is wrapped with cation exchange membrane and cathode material in...

Embodiment 2

[0041] The antibiotic removal status of four different antibiotics in the anaerobic self-electrolysis system and the impact on the anaerobic self-electrolysis of aquaculture wastewater, the specific implementation steps are as follows:

[0042] (1) Under the conditions of an external resistance of 1000Ω and an operating temperature T of 30±1°C, the reactor is operated in a continuous flow mode, and the output voltage is continuously stable for at least three HRTs;

[0043] (2) Four typical aureomycin (tetracyclines), sulfamethazine (sulfonamides), roxithromycin (macrolides), norfloxacin (fluoroquinolones) Add exogenous antibiotics to the artificial simulated breeding wastewater, run the anaerobic self-electrolysis reactor on the artificial simulated breeding wastewater without antibiotics as stage A; The self-electrolysis reactor is stage B; the anaerobic self-electrolysis reactor is stage C with the artificial simulated breeding wastewater containing aureomycin (15 μg / L) and ...

Embodiment 3

[0060] The removal of antibiotics with different concentration gradients in the anaerobic autoelectrolysis system and the effect on the anaerobic autoelectrolysis of simulated aquaculture wastewater, the specific implementation steps are as follows:

[0061] (1) Under the conditions of an external resistance of 1000Ω and an operating temperature T of 30±1°C, the reactor is operated in a continuous flow mode, and the output voltage is continuously stable for at least three HRTs.

[0062] (2) The four types of antibiotics with three different concentration gradients of high, medium and low were sequentially added to the simulated aquaculture wastewater as influent. Among them, the artificial simulated breeding wastewater without antibiotics is run in an anaerobic self-electrolysis reactor as stage A; / L) and norfloxacin (18μg / L) artificially simulated breeding wastewater to run the ASE reactor as stage F, with aureomycin (15μg / L), sulfamethazine (10μg / L), erythromycin The ASE r...

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Abstract

The invention discloses a method used for removing antibiotics in breeding industry wastewater via anaerobic self-electrolysis, and applications thereof. The method comprises following steps: (1) breeding industry wastewater is mixed with an anaerobic granular sludge supernate, an anaerobic self-electrolysis reactor is connected with an external resistor, and is activated in a sequencing batch mode until a maximum value of an output voltage is reached and the output voltage is stabilized so as to realize starting of a reaction system; and (2) breeding industry wastewater is taken as a substrate so as to realize continuous flow operation of the anaerobic self-electrolysis reactor, and operation of the anaerobic self-electrolysis system is stabilized so as to remove antibiotics in breeding industry wastewater. According to the method used for processing breeding industry wastewater via anaerobic self-electrolysis, antibiotics can be removed effectively without external voltage, problems of conventional anaerobic technology in antibiotic degradation are solved; operation conditions of the method are mild; operation is generally carried out at normal temperature under normal pressure and in a close-to-neutral environment; maintenance cost is low; and safety is high. The method is economical, and is friendly to the environment; and prospect is promising.

Description

technical field [0001] The invention belongs to the technical fields of environmental pollution biological treatment and bioenergy, and in particular relates to an anaerobic self-electrolysis treatment method for effectively removing antibiotics in aquaculture wastewater. Background technique [0002] In the late 1940s, since antibiotics were discovered to promote the growth of animals, different types of antibiotics were successively added to the feed of livestock and poultry industry to promote the growth of livestock and poultry, reduce diseases and achieve the purpose of increasing production, weight gain and feed remuneration. About XX tons of antibiotics are added to livestock and poultry breeding feed every year in my country, mainly including tetracyclines, sulfonamides, macrolides and fluoroquinolones. Most antibiotics cannot be degraded and absorbed in animals, and are discharged into aquaculture wastewater in their original state or in the form of metabolites. In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28
Inventor 朱能武王云吴平霄
Owner SOUTH CHINA UNIV OF TECH
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