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Concentration system and treatment system for antibiotic-containing aquaculture wastewater

A breeding wastewater and concentration system technology, applied in dehydration/drying/concentration sludge treatment, animal husbandry wastewater treatment, water/sewage treatment, etc., can solve the problem of ineffective degradation of antibiotics, difficult comprehensive treatment, and unsuitable for large-scale use And other issues

Active Publication Date: 2021-11-02
南通西田环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large amount of wastewater containing antibiotics is discharged into the environment, making it difficult for general microorganisms to grow and effectively degrade antibiotics
While polluting the water environment, these wastewaters also seriously endanger human health.
[0003] CN110526418B discloses a method for degrading antibiotics in aquaculture wastewater by using immobilized dense porosity bacteria, which is in the acidic range (pH3.0-6.0), whether it is under the extremely low temperature condition of 0°C or the high temperature condition of 70°C Laccase (Lac-Q) can efficiently degrade tetracyclic and sulfonamide antibiotics, but due to the high COD and variety of antibiotics in aquaculture wastewater, this method cannot fully degrade the antibiotics in aquaculture wastewater
[0004] CN108002605B discloses a method for treating antibiotics in seawater aquaculture wastewater. Ferrate ions are produced by electrolytic reaction, and then combined with sodium hypochlorite produced in the system by insoluble anode graphite electrodes to effectively promote it, it can treat antibiotics in aquaculture wastewater. However, due to the large amount of marine aquaculture wastewater, this method has the problems of high energy consumption, low treatment efficiency, and difficulty in comprehensive treatment, which makes this method not suitable for large-scale use

Method used

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  • Concentration system and treatment system for antibiotic-containing aquaculture wastewater
  • Concentration system and treatment system for antibiotic-containing aquaculture wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This embodiment handles the production wastewater from a livestock and poultry breeding factory:

[0041] After testing: COD8450mg / L, norfloxacin 43.2μg / L and azithromycin 11.8μg / L;

[0042] The aquaculture wastewater is transported to the acidification pond for acidification treatment. The acidification pond adopts an anaerobic hydrolysis acidification process. The hydraulic retention time of the acidification pond is 8h, pH5.5, DO is 0.15-0.2mg / L, and norfloxacin in the effluent 24.2 μg / L and azithromycin 2.8 μg / L, the effluent of the acidification pool is transported to the alkalization pool, the alkalization pool is provided with an alkali box, and the pH of the wastewater in the alkalization pool is adjusted to 9 and left for 2 hours; The supernatant in the chemical tank is transported to the cathode chamber A, the anode chamber A of the electroporation anion cell is connected to the concentrate pool, the voltage between the anode A and the cathode A is controlled ...

Embodiment 2

[0045] On the basis of Example 1, a biochemical pool is set: the wastewater in the cathode chamber A and the wastewater in the anode chamber B go to the biochemical pool, and the biochemical pools are anaerobic pools (DO is 0.2mg / L, residence time 36h) and Aerobic pool (DO 3.5mg / L, residence time 8h), effluent COD 32mg / L, norfloxacin 0.01μg / L, azithromycin concentration 0.05μg / L. It meets the first-level standard of "Discharge Standard of Pollutants for Livestock and Poultry Breeding Industry" (GB18596-2001) and the first-level standard of "Integrated Wastewater Discharge Standard" (GB8978-1996).

Embodiment 3

[0047] On the basis of embodiment 1, the advanced oxidation tank is set: the wastewater in the anode chamber A and the cathode chamber B are sent to the advanced oxidation tank, and the ozone catalytic mode is used to carry out oxidation treatment, and the norfloxacin concentration after treatment is 12.1 μg / L, the concentration of azithromycin is 6.5 μg / L.

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Abstract

The present invention relates to a concentration system and a treatment system for antibiotic-containing breeding wastewater. The concentration system includes acidification pools, alkalization pools, electrode-removal anion pools, concentrated solution pools, sludge pools, cracking pools, ultrasonic pressure filter pools, Electric decationization pool; the culture wastewater is transported to the acidification pool for acidification treatment, the acidification pool adopts anaerobic hydrolysis acidification process, the effluent from the acidification pool is transported to the alkalization pool, and the wastewater in the alkalization pool is transported to the electro-deanionization pool In the anode chamber A of the pool, while the sludge in the sludge pool passes through the cracking pool and the ultrasonic press filter pool, the waste water is transported to the cathode room B of the electrodeionization pool to realize the concentration of antibiotics, and the concentrated waste water passes through the super oxidation pool Oxidation treatment, and other parts of wastewater are treated through biochemical pools. According to the concentration system of antibiotic-containing aquaculture wastewater of the present invention, the solubility of antibiotic molecules in wastewater is improved.

Description

technical field [0001] The invention belongs to the field of wastewater treatment, and in particular relates to a concentration system for antibiotic-containing breeding wastewater and a treatment system thereof. Background technique [0002] With the continuous development of the breeding industry, in order to prevent diseases and promote the growth of poultry in the breeding process, a large number of antibiotics are used as feed additives or drinks, followed by a large number of uninfected animals and / or The antibiotics used by plants and the discharge of untreated antibiotics into the environment will bring great troubles to people. A large amount of wastewater containing antibiotics is discharged into the environment, making it difficult for general microorganisms to grow and effectively degrade antibiotics. While polluting the water environment, these wastewaters also seriously endanger human health. [0003] CN110526418B discloses a method for degrading antibiotics ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F11/00C02F11/122C02F11/15C02F103/20C02F101/38C02F101/34
CPCC02F9/00C02F11/00C02F11/122C02F11/15C02F3/28C02F1/66C02F1/725C02F1/78C02F1/46C02F1/722C02F2103/20C02F2101/34C02F2101/38C02F2101/40
Inventor 袁惠新
Owner 南通西田环保科技有限公司
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