A biochemical treatment reactor for wastewater containing quinolone antibiotics

An antibiotic wastewater, quinolone technology, applied in biological water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problem of ineffective degradation of quinolone antibiotics, etc. Separator, the effect of overcoming serious mud running and good separation effect

Inactive Publication Date: 2011-12-14
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of traditional treatment methods that cannot effectively degrade quinolone antibiotics, provide a treatment process that uses the combination of CAF and FBBR, and open up a new way for the effective removal of quinolone pollutants

Method used

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  • A biochemical treatment reactor for wastewater containing quinolone antibiotics
  • A biochemical treatment reactor for wastewater containing quinolone antibiotics
  • A biochemical treatment reactor for wastewater containing quinolone antibiotics

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Experimental program
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specific Embodiment approach

[0014] First, domestic sewage is connected to the reactor. After the two reactors are simultaneously stuffy for several days, stop the aeration system of the CAF reactor and switch to anaerobic operation for several days. Observe the film formation of the biological filler. After successful film formation , pump a certain concentration of wastewater prepared in the laboratory (gradually increasing the load) into the reactor, first pass through the CAF and then through the FBBR, continuously detect the COD value of the influent and effluent, and constantly adjust the parameters of the reactor during the experiment to achieve the best Good removal effect.

Embodiment

[0016] In this embodiment, the experiment is carried out by using high-concentration wastewater containing quinolones prepared in the laboratory. The raw water quality is: 300-400mg / L for quinolones, equivalent to 600-800mg / l for CODcr. The water sample is pumped into the CAF reactor through the water pump. After the wastewater stays for 24 hours, it flows into the FBBR aerobic reactor by itself, and is discharged after staying for 24 hours. The CODcr of the inflow and outflow water is detected. After the reactor runs stably, the removal rate can be stabilized at 70- About 75%. The biofilm grows well, and the microscopic examination of the biofilm reveals that there are many kinds of microorganisms with good activity.

[0017] Description of English abbreviations:

[0018] CODcr: chemical oxygen demand

[0019] CAF: Composite Anaerobic Reactor

[0020] FBBR: Fixed Membrane Bioreactor

[0021] HRT: hydraulic retention time

[0022] SRT: solid residence time

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Abstract

The present invention relates to a biochemical treatment reactor for waste water containing quinolone antibiotics, the reactor is composed of CAF (Composite Anaerobic Filter) and FBBR (Fixed Bed Membrane Bioreactor). Such pollutants are decomposed into small molecular compounds, and then degraded by microorganisms in the aerobic reactor, so as to achieve the purpose of removing such pollutants. By improving the traditional reactor, the present invention not only solves the problem that antibiotic wastewater containing quinolone compounds is difficult to biodegrade, but also solves the problem of mud run-off and difficult acclimation in traditional reactors, and opens up a new path for the treatment of this type of antibiotic wastewater new way.

Description

technical field [0001] The invention relates to a reactor for biochemically degrading waste water containing quinolone antibiotics. Background technique [0002] Quinolones are artificially synthesized antibacterial drugs containing 4-quinolone nuclei, which selectively inhibit bacterial DNA-gyrase and cause bacterial death by hindering DNA synthesis. [0003] At present, quinolones widely used in China include norfloxacin, ofloxacin, ciprofloxacin, levofloxacin, lomefloxacin, fleroxacin, tosufloxacin, sparfloxacin, cinoxacin, Pafloxacin, moxifloxacin, gemifloxacin, trovafloxacin, clinfloxacin, pipemidic acid, nalidixic acid, pyrrole acid, etc. Among them, the utilization rate of the first three in the hospital reaches more than 85%. Such antibiotics produce high-concentration organic wastewater in the fermentation, separation, extraction, purification and other links of the production process. [0004] At present, most of the treatment of this kind of antibiotic wastewat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/30C02F3/34
Inventor 魏东斌阴俊霞杜宇国
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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