Treatment of real paracetamol wastewater by fenton process

Dalgic, Gamze; Turkdogan, Ilter; Yetilmezsoy, Kaan; Koçak, Fatma Emel

doi:10.2298/ciceq150831032d

Cited by 5 publications

(7 citation statements)

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“…The optimum concentration value for H2O2 is 25 mg/L under the initial OTC and CTC concentration of 100 mg/L, Fe 2+ concentration of 20 mg/L and pH 3 operating conditions. It has been stated that the decrease in the rate of degradation at higher H2O2 concentrations is due to both the recombination of hydroxyl radicals and the scavenging effect of the •OH of H2O2 (Dalgic et al, 2017). However, such a critical H2O2 concentration value was not found in this study.…”

Section: Effect Of H2o2 Concentrationcontrasting

confidence: 61%

Degradation of Oxytetracycline and Chlortetracycline by Fenton Process

ÇELİK

Aydın

Çelik

et al. 2023

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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In this study, degradation of oxytetracycline (OTC) and chlortetracycline (CTC) was investigated by Fenton process. In experimental studies conducted for this purpose, different values of pH, Fe2+ concentration, H2O2 concentration and reaction time were tested as important parameters for the Fenton process and optimum conditions for OTC and CTC removal were determined. For both antibiotics, the optimum values of the parameters in the Fenton process were the same, and these values were found to be 3 for pH, 20 mg/L for Fe2+ concentration, 25 mg/L for H2O2 concentration, 5 min for reaction time. Under these optimum conditions, OTC degradation was 100%, CTC degradation was 99.68%, chemical oxygen demand (COD) removal efficiency for oxytetracycline (O-COD) was 89.6%, COD removal efficiency for chlortetracycline (C-COD) was 88.5%. These results show that the Fenton process is an effective method that can be used for OTC and CTC degradation.

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Section: Effect Of H2o2 Concentrationcontrasting

confidence: 61%

Degradation of Oxytetracycline and Chlortetracycline by Fenton Process

ÇELİK

Aydın

Çelik

et al. 2023

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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“…The value of the initial PCT concentration was set to 40 mg L −1 in order to investigate Fenton and photo-Fenton treatment of a real paracetamol wastewater characterized by higher PCT concentrations (Dalgic et al ( 2017 )).…”

Section: Methodological Framework: Experimental Settings and Process Modelingmentioning

confidence: 99%

“…However, another issue is the treatment of real paracetamol wastewaters that are characterized by high levels of PCT, total organic carbon (TOC), and chemical oxygen demand (COD) concentrations. A recent work by Dalgic et al ( 2017 ) showed that the Fenton process can be an effective pre-treatment of a real paracetamol wastewater of the pharmaceutical industry characterized by a PCT concentration between 37 and 294 mg L −1 . Previously, Roshanfekr Rad et al ( 2015 ) also investigated the use of photo-Fenton process in industrial applications.…”

Section: Introductionmentioning

confidence: 99%

A kinetic study for the Fenton and photo-Fenton paracetamol degradation in an annular photoreactor

Audino

Conte

Schenone

et al. 2018

Environ Sci Pollut Res

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A kinetic model describing Fenton and photo-Fenton degradation of paracetamol (PCT) and consumption of hydrogen peroxide (HO) was proposed. A set of Fenton and photo-Fenton experiments (18 runs in total) was performed by fixing the initial concentration of PCT to 40 mg L and varying the initial concentrations of HO and ferrous ion, Fe. The experimental set-up was a well-stirred annular photoreactor equipped with an actinic BL TL-DK 36 W/10 1SL lamp. Experimental results highlighted that PCT is no more detected by HPLC analysis within a minimum reaction time of 2.5 and a maximum reaction time of 15.0 min. Besides, a maximum conversion of total organic carbon (TOC) of 68.5% was observed after 75 min of reaction in case of using UV radiation and the highest concentrations of the Fenton reagents. The experimental data were used to fit the kinetic model. The radiation field inside the reactor was taken into account through the local volumetric rate of photon absorption, evaluated by assuming a line source model with spherical and isotropic emission. The kinetic parameters were estimated by using a non-linear least-squares regression procedure and root mean square errors (RMSE) were calculated in order to validate the feasibility of the proposed model. A good agreement between experimental and predicted data was observed and the lowest values of RMSE resulted in 5.84 and 9.59% for PCT and HO normalized concentrations, respectively.

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“…The value of the initial PCT concentration is higher than that found in wastewaters and surface waters (Ternes, 1998;Kolpin et al 2002;Lapworth et al 2012), but it allows simulating the treatment of real paracetamol wastewater characterized by higher PCT, TOC, and chemical oxygen demand (COD) concentrations (Cabrera Reina et al 2012;Dalgic et al 2016).…”

Section: Experimental Designmentioning

confidence: 99%

A novel modeling approach for a generalizable photo-Fenton-based degradation of organic compounds

Audino

Pérez-Moya

Graells

et al. 2020

Environ Sci Pollut Res

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This work aims at proposing and validating a model that can be exploited for the future development of industrial applications (e.g., process design and control) of Fenton and photo-Fenton processes. Hence, a compromise modeling solution has been developed between the non-generalizable accuracy of the first principles models (FPMs) and the oversimplification of the empirical models (EMs). The work presents a novel model of moderate complexity that is simplified enough to be generalizable and computationally affordable, while retaining physical meaning. The methodology is based on a general degradation mechanism that can be algorithmically generated from the carbon number of the target compound, as well as from the knowledge of two kinetic parameters, one for the faster initial rate and the other one for the subsequent degradation steps. The contaminant degradation mechanism has been combined with an appropriately simplified implementation of the well-known Fenton and photo-Fenton kinetics. This model describes the degradation not only of the target compound and of the oxidant, but also of total organic carbon (TOC), which is used to define the overall quality of the water. Experimental design techniques were used along with a non-conventional modeling methodology of programmable process structures (PPS). This novel modeling approach was applied and validated on the degradation of three model compounds. A successful prediction of the evolution of the contaminants H 2 O 2 and TOC was confirmed and assessed by the root mean square error (RMSE).

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Treatment of real paracetamol wastewater by fenton process

Cited by 5 publications

References 0 publications

Degradation of Oxytetracycline and Chlortetracycline by Fenton Process

Degradation of Oxytetracycline and Chlortetracycline by Fenton Process

A kinetic study for the Fenton and photo-Fenton paracetamol degradation in an annular photoreactor

A novel modeling approach for a generalizable photo-Fenton-based degradation of organic compounds

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