Experimental study of degradation and biodegradability of oxytetracycline antibiotic in aqueous solution using Fenton process

Zouanti, Mustapha; Bezzina, Mohamed; Dhib, Ramdhane

doi:10.4491/eer.2018.343

Cited by 19 publications

(5 citation statements)

References 39 publications

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“…An oxonium ion makes it electrophilic to increase the stability of hydrogen peroxide and reduces its reactivity with iron ion. On the other hand, it is stated that the oxidation efficiency decreases due to the precipitation of dissolved iron at pH> 4 and the decrease in the disintegration of H 2 O 2 to hydroxyl radical [7]. The optimum pH value found in this study was consistent with the pH range in the literature [7,25].…”

Section: Effect Of Phsupporting

confidence: 88%

“…The release of antibiotics to the environment promotes the proliferation of antibiotic-resistant bacteria and genes, and consequently affects human health and ecosystem [4,5]. Although conventional biological wastewater treatment has advantages such as low cost, high stability and easy operation; tetracyclines cannot be effectively removed because of its chemical stability and biological resistance [6,7]. Therefore, effective and environmentally friendly alternative technologies are required to effectively degrade and remove these compounds [2].…”

Section: Introductionmentioning

confidence: 99%

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Degradation and mineralization of tetracycline by Fenton process

Gürtekin

ÇELİK

Aydın

et al. 2022

Environmental Research and Technology

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In this study, we aimed to investigate the degradation and mineralization of tetracycline by Fenton process. For this purpose; optimum values were found for Fe2+ concentration, H2O2 concentration and pH, reaction time, sedimentation times which are effective operating parameters in Fenton process. In this study where initial tetracycline concentration was used as 100 mg/L; optimum values were found as 4 for pH, 30 mg/L for Fe2+ concentration, 100 mg/L for H2O2 concentration and 10 min for reaction time and 90 min for sedimentation time. Under these conditions, the TC degradation was 100%, while the COD removal efficiency was approximately 94%. As a result of kinetic studies, BMG is the most suitable kinetic model in terms of tetracycline degradation, while it is seen that the most suitable kinetic model for tetracycline mineralization in terms of COD is the first order kinetic model. The cost of removing 1 kg of tetracycline from the unit costs of chemicals and energy used in the Fenton process was found to be $ 1.527.

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Section: Effect Of Phsupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Degradation and mineralization of tetracycline by Fenton process

Gürtekin

ÇELİK

Aydın

et al. 2022

Environmental Research and Technology

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“…The degradation efficiency of OTC by PS activation was greater than 99% in 24 min, and the estimated pseudo firstorder rate constant (k) was 0.21 ± 0.03 min −1 . This removal rate was comparable to OTC degradation through the Fenton process using H 2 O 2 /Fe 2+ (k app = 0.068-0.213 min −1 ) [33], which indicates that the PS activation process using HWWC can be a promising technique for removing antibiotics from water. The removal rate of OTC in the presence of PS and HWWC in 24 min was low (<6.0%).…”

Section: Control Experimentsmentioning

confidence: 57%

Degradation of Oxytetracycline by Persulfate Activation Using a Magnetic Separable Iron Oxide Catalyst Derived from Hand-Warmer Waste

Lee

Park

et al. 2021

Applied Sciences

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Oxytetracycline (OTC) is a tetracycline antibiotic that is widely used in the drug therapy and livestock industry and may threaten human health and ecosystems when released into the environment. In this study, a catalyst was prepared from hand-warmer waste using a simple magnetic separation method. The prepared hand-warmer waste catalyst (HWWC) was used as a persulfate (PS) activator for OTC removal. Characterization methods, such as X-ray diffraction and scanning electron microscopy–energy dispersive X-ray spectrometry, were used to investigate the crystal structure, surface morphology, and weight ratios of the elements in the HWWC. The degradation efficiency of OTC in the presence of the catalyst and PS was studied, and the radical generation mechanism of the catalyst was investigated. The removal ratio of OTC by PS activation was greater than 99% for a reaction time of 24 min at a pH of 6. The effects of the HWWC dosage, PS concentration, and solution pH on OTC degradation were also investigated. The reuse test revealed that HWWC can be reused for eight cycles with great stability. These results suggest that PS activation using hand-warmer waste can be an efficient strategy for the degradation of antibiotics.

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“…The pH of the solution is essential in the degradation of antibiotics by advanced oxidation processes. 40 Any change in pH impacts the isoelectric point or surface load of the catalyst. 41 To investigate the optimum pH, experiments were performed in the pH range of 2-8.…”

Section: Ph Valuementioning

confidence: 99%

Photocatalytic degradation of oxytetracycline using ZnO catalyst

Yildiz,

Canbaz,

Mihçiokur

2024

Env Prog and Sustain Energy

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In the present study, the degradation of oxytetracycline (OTC) under ultraviolet (UV) light in the presence of ZnO catalyst was investigated, and optimum parameters for degradation efficiency were determined. Different pH values, ZnO dosages, reaction times, OTC concentrations, and UV lights were used in this study. The optimum conditions found were as follows: pH 4, ZnO 1 g L−1, reaction time 25 min, and OTC concentration 10 mg L−1. Degradation efficiency was 42.1%, 76%, 70.7%, and 61.7% for ZnO and photocatalytic (for UV‐A, UV‐B, and UV‐C) degradation at optimal conditions, respectively. The resulting products after the photocatalytic oxidation of OTC were determined in the study. To identify the toxicity of degradation products and OTC, the lowest LC 50 (50% lethal concentration) and EC 50 (50% effective concentration) values were found. The resulting ethanamine, 2‐(2,6‐dimethylphenoxy)‐N‐methyl‐ by‐products were observed to be more toxic than OTC. Furthermore, it was seen that isopropoxy carbamic acid, ethyl ester by‐products were formed, whose presence is environmentally risky for aquatic environments due to their low EC50 values.

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Experimental study of degradation and biodegradability of oxytetracycline antibiotic in aqueous solution using Fenton process

Cited by 19 publications

References 39 publications

Degradation and mineralization of tetracycline by Fenton process

Degradation and mineralization of tetracycline by Fenton process

Degradation of Oxytetracycline by Persulfate Activation Using a Magnetic Separable Iron Oxide Catalyst Derived from Hand-Warmer Waste

Photocatalytic degradation of oxytetracycline using ZnO catalyst

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