The feasibility of combining an electrochemical treatment on a carbon felt electrode and a biological treatment for the degradation of tetracycline and tylosin – application of the experimental design methodology

Yahiaoui, Idris; Cherif, Lamia Yahia; Madi, Katia; Aissani‐Benissad, Farida; Fourcade, Florence; Amrane, Abdeltif

doi:10.1080/01496395.2017.1385626

Cited by 23 publications

(7 citation statements)

References 23 publications

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“…The period between the 2 nd and 9 th days corresponded to an acclimatization step of the microorganisms to the residual by-products and the assimilation of intracellular material released by the autolyzed cells [45]. These results fitted with recent research in which a similar period of acclimatization was observed [44]. After that, the DOC removal continuously decreased until the last day of treatment (day 21).…”

Section: Biological Treatmentsupporting

confidence: 83%

“…On the other hand, in the presence of the pre-treated CTC solution, experimental results showed that DOC values decreased during the first 2 days, reaching 18% of DOC removal. The decrease can be most likely related to the biosorption of the by-products and to the biodegradation of the more readily biodegradable ones [44]. These values remained constant during the next 9 days and then continuously decreased until the 21 st day.…”

Section: Biological Treatmentmentioning

confidence: 95%

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Nickel foam as a new material for chlortetracycline electrochemical oxidation: Biodegradability improvement and biological treatment

Saidi

Fourcade

Bellakhal

et al. 2020

Journal of Electroanalytical Chemistry

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Chlortetracycline CTC is an organochlorine compound released from industrial pharmaceutical waste. This pollutant had dangerous effects in aquatic organisms and human health, since it is responsible for inhibition of microbial activity and growth. In this study, the elimination of CTC from water is A c c e p t e d m a n u s c r i p t targeted. Biodegradability, based on the BOD 5 / COD ratio was studied, showing the non-feasibility of a direct biological treatment. Cyclic voltammetry analysis on a nickel electrode revealed a significant electrochemical activity of CTC. An electrochemical pre-treatment was therefore carried out in a percolation cell using a nickel foam as a working electrode at the potential of 0.5 V /SCE. The operating parameters were optimized. A degradation yield of 99% was achieved for an initial concentration of pollutant of 50 mg L-1 and a flow rate of 5 mL min-1 in alkaline conditions. After electrolysis, a total dechlorination of CTC was observed. The biodegradability ratio was improved, from 0.13 to 0.33 after electrolysis; while the dissolved organic carbon (DOC) analysis revealed that the level of mineralization remained low 27%. A 21 days biological treatment with activated sludge was then carried out, leading to an overall mineralization yield of 78%.

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Section: Biological Treatmentsupporting

confidence: 83%

Section: Biological Treatmentmentioning

confidence: 95%

Nickel foam as a new material for chlortetracycline electrochemical oxidation: Biodegradability improvement and biological treatment

Saidi

Fourcade

Bellakhal

et al. 2020

Journal of Electroanalytical Chemistry

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“…However, The removal of dyes and recalcitrant pollutants from wastewater using these methods was not as effective as expected; in addition, most of these methods are nondestructive, since they only consist in a transfer of organic compounds from water to another phase, thus causing secondary pollution [28][29][30][31][32]. For the degradation of persistent organic compounds contained in wastewater, several studies recommend integrated processes, especially the coupling of AOPs and biological treatment [28][29][30][31][32][33][34]. The main objectives of this study are: i) to use a heat attachment method to immobilize ZnO on glass plate (9 cm × 35 cm).…”

Section: Introductionmentioning

confidence: 99%

Sulfamethazine degradation by heterogeneous photocatalysis with ZnO immobilized on a glass plate using the heat attachment method and its impact on the biodegradability

Aissani

Yahiaoui

Boudrahem

et al. 2020

Reac Kinet Mech Cat

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In this paper, the degradation of sulfamethazine (SMT) was performed using of photocatalytic process in the presence of ZnO catalyst immobilized on glass plate (on ZnO/glass plate) under UV light. The ZnO/glass plate was characterized by X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectra; the results of the characterization demonstrated that the properties of ZnO/glass plate were maintained unmodified. The adsorption and the photolysis tests revealed the absence of adsorption of SMT onto ZnO/glass plate and the absence of direct photolysis of SMT. The effect of the initial solution pH, the flow rate and the initial concentration of SMT on the photocatalytic process was studied and optimized by using central composite design (CCD). The model equation obtained led to a classification of these parameters based on their level of significance. The results suggested that the most influential factor was the initial concentration of SMT (x 2 ), which had the strongest effect on the response (-11.6) and the negative sign of the coefficient suggested that the degradation of SMT decreased for increasing initial SMT concentration. It was followed by the flow rate with positive effect on the yield of SMT degradation (+2.06). The model also demonstrated the absence of pH effect in the studied interval and that the strongest interaction was between the pH and the flow rate. The kinetic of degradation of the SMT can be described by a pseudo A c c e p t e d M a n u s c r i p t 2first order kinetic model for 10 and 50 mg/L of SMT; while the kinetic of degradation was described by a pseudo-second-order kinetic model for the highest initial amount, [SMT] 0 =100 mg/L. The optimal values of the solution pH, the flow rate and the initial concentration of SMT were 6, 0.56 L/min and 11 mg/L respectively. Under these conditions the removal efficiency of SMT was 96 % and the BOD 5 /COD ratio increased from 0 to 0.20 after 5h of irradiation time.

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“…Among these techniques, biological methods such as activated sludge process and anaerobic treatment, the most cost-effective for wastewater treatment, which are destructive and have been extensively studied, do not always appear relevant for the removal of recalcitrant compounds, owing to their low biodegradability [12]. To overcome these disadvantages, Advanced Oxidation processes (AOPs) based on the generation of highly oxidative hydroxyl radical (•OH), can be considered for the removal of non-biodegradable pollutants from wastewater [13,14]. Aissani et al [15] have studied the degradation of sulfamethazine by a photocatalytic process followed by a biological treatment; they obtained 58% COD removal.…”

Section: Introductionmentioning

confidence: 99%

Kinetic degradation of amoxicillin by using the electro-Fenton process in the presence of a graphite rods from used batteries

Kadji

Yahiaoui

Garti

et al. 2021

Chinese Journal of Chemical Engineering

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This study reports the removal of amoxicillin (AMX) in aqueous media using the electro-Fenton process in the presence of a graphite cathode recovered from used batteries. The impact of the relevant parameters on the electro-Fenton process, namely the applied current intensity, the temperature, the initial concentration of AMX and the initial concentration of ferrous ions were investigated. The results showed that the optimal values were: I= 600 mA, T= 25°C, [AMX] 0 = 0.082 mmol•L −1 and [Fe 2+ ]= 1 mmol•L −1 , leading to 95% degradation and 74% mineralization. The model parameters of AMX mineralization were determined using nonlinear methods, showing that it follows a pseudo-second-order kinetic. The Energy consumption (EC) calculated under the optimal values was found to be 0.79 kW•h −1 •g −1 , which was of the same order of magnitude of those reported in other findings; while it is noteworthy that the electrodes used in our study are of a lower cost.

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The feasibility of combining an electrochemical treatment on a carbon felt electrode and a biological treatment for the degradation of tetracycline and tylosin – application of the experimental design methodology

Cited by 23 publications

References 23 publications

Nickel foam as a new material for chlortetracycline electrochemical oxidation: Biodegradability improvement and biological treatment

Nickel foam as a new material for chlortetracycline electrochemical oxidation: Biodegradability improvement and biological treatment

Sulfamethazine degradation by heterogeneous photocatalysis with ZnO immobilized on a glass plate using the heat attachment method and its impact on the biodegradability

Kinetic degradation of amoxicillin by using the electro-Fenton process in the presence of a graphite rods from used batteries

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