Method for treating ciprofloxacin hydrochloride in water

A technology of ciprofloxacin hydrochloride and γ-irradiation, applied in water/sewage treatment, chemical instruments and methods, light water/sewage treatment, etc., can solve human and ecological system hazards, bacterial resistance, and microbial impact and other problems, to achieve good development prospects, safe and reliable treatment process, and high degradation efficiency

Inactive Publication Date: 2015-07-08
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Residual antibiotics in the environment cause bacteria to develop drug resistance, have a certain impact on microorganisms, and are not easily removed by conventional water treatment processes in sewage treatment plants, causing potential harm to humans and ecosystems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: Artificially prepare different concentrations of ciprofloxacin hydrochloride aqueous solutions, and study the relationship between the concentration of ciprofloxacin hydrochloride and the gamma irradiation dose

[0017] ①0.05mg·L -1 Aqueous solution of ciprofloxacin hydrochloride: gamma irradiation source is 60 The Co source was treated with γ-irradiated doses of 50, 100, 400, 600, and 1000 Gy respectively, and the concentration of ciprofloxacin hydrochloride in the γ-irradiated aqueous solution was determined by high performance liquid chromatography. After calculation, the degradation rates of ciprofloxacin hydrochloride were 46.25%, 52.47%, 73.35%, 85.43%, and 99.92% after the above-mentioned different doses of γ-irradiation treatment.

[0018] ②50mg·L -1 Aqueous solution of ciprofloxacin hydrochloride: gamma irradiation source is 60 Co source, after treatment with gamma irradiation with doses of 50, 100, 200, 400, 500, 600, 1000, 1500, 2000Gy respectiv...

Embodiment 2

[0021] Embodiment 2: artificial preparation of ciprofloxacin hydrochloride and Cr 6+ mixed solution (Cr 6+ The concentration is 0.1mmol·L - 1 ), to study the combined degradation of the two by γ-irradiation

[0022] ①The concentration of ciprofloxacin hydrochloride is 50mg·L -1 Potassium dichromate is added to the aqueous solution to make Cr 6+ The concentration is 0.1mmol·L -1 . Because Cr 6+ It has strong oxidizing properties, and it will degrade even if it is not irradiated after being mixed with ciprofloxacin hydrochloride, the degradation rate is 24.19%, Cr 6+ The degradation rate is 0.82%. when using 60 Co source was γ-irradiated, and when the irradiation doses were 100, 200, 400, 600, 1000, 1500, and 2000 Gy, the degradation rates of ciprofloxacin hydrochloride were 58.20%, 73.71%, 88.63%, 91.79%, and 99.46%, respectively. %, 99.71%, 99.94%, Cr 6+ The degradation rates were 56.31%, 75.48%, 80.63%, 99.10%, 99.57%, 99.78%, 99.52%.

[0023] ② Comparative experi...

Embodiment 3

[0026] Embodiment 3: artificial preparation of ciprofloxacin hydrochloride and Cr 6+ mixed solution (Cr 6+ The concentration is 1mmol·L -1 ), to study the combined degradation of the two by γ-irradiation

[0027] ①The concentration of ciprofloxacin hydrochloride is 50mg·L -1 Potassium dichromate is added to the aqueous solution to make Cr 6+ The concentration is 1mmol·L -1 . Because Cr 6+ It has strong oxidizing properties, and it will degrade even if it is not irradiated after being mixed with ciprofloxacin hydrochloride, the degradation rate is 74.39%, Cr 6+ The degradation rate is 4.47%. when using 60Co source was γ-irradiated, and when the irradiation doses were 100, 200, 400, 600, 1000, 1500, and 2000 Gy, the degradation rates of ciprofloxacin hydrochloride were 78.46%, 80.20%, 83.70%, 90.63%, and 99.99%, respectively. %, 100%, 100%, Cr 6+ The degradation rates were 13.87%, 25.48%, 40.57%, 45.36%, 53.91%, 64.18%, 76.30%.

[0028] ② Comparative test 1: the same ...

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Abstract

The invention belongs to the technical field of water treatment, discloses a method for treating ciprofloxacin hydrochloride in water, and in particular relates to a method for degrading ciprofloxacin hydrochloride in water by virtue of gamma irradiation. According to the method, 60Co is used as a gamma irradiation source, the irradiation dose is 50-5000Gy, the concentration of ciprofloxacin hydrochloride in the water is 0.05-100mg.L<-1>, the ciprofloxacin hydrochloride in the water can be efficiently degraded, and secondary pollution is not generated, so that the method is safe and reliable and has good development prospect. The method can be used together with Cr<6+> and/or BrO3<-> to ensure that the degradation efficiency of ciprofloxacin hydrochloride can be improved and the degradation efficiency of Cr<6+> and BrO3<-> can also be improved, so that a new solution is provided for comprehensive treatment of wastewater of different sources.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a method for degrading ciprofloxacin hydrochloride in water by gamma irradiation. Background technique [0002] With the continuous improvement of living standards, people pay more and more attention to their health and ecological environment, and the antibiotics left in the environment are widely valued by people. In the past decade, more and more quinolone antibiotics have been detected in natural water bodies, urban sewage treatment plants, hospital effluent, aquaculture area waters, soil, sediment, vegetables, animal manure, and aquatic products. Residual antibiotics in the environment cause bacteria to develop drug resistance, have a certain impact on microorganisms, and are not easily removed by conventional water treatment processes in sewage treatment plants, causing potential harm to humans and ecosystems. [0003] At the same time, hexavalent chromi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/30C02F1/62C02F1/58
Inventor 郭照冰祝胜男葛鑫魏英王静
Owner NANJING UNIV OF INFORMATION SCI & TECH
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