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J Hazard Mater

Title:		Surface volatilization modeling of (semi-)volatile hydrophobic organic compounds: The role of reference compounds
Author(s):		Pino-Herrera DO; Fayolle Y; van Hullebusch ED; Huguenot D; Esposito G; Pechaud Y;
Address:		"Universite Paris-Est, Laboratoire Geomateriaux et Environnement (EA 4508), UPEM, Marne-la-Vallee, 77454, France. Electronic address: d.pinoherrera@brgm.fr. Universite Paris-Saclay, INRAE, UR PROSE, 92160, Antony, France. Institut de Physique du Globe de Paris, Sorbonne Paris Cite, Universite Paris Diderot, UMR 7154, CNRS, F-75005 Paris, France. Universite Paris-Est, Laboratoire Geomateriaux et Environnement (EA 4508), UPEM, Marne-la-Vallee, 77454, France. University of Napoli 'Federico II', Department of Civil, Architectural and Environmental Engineering, Via Claudio, 21, 80125 Napoli, Italy. Universite Paris-Est, Laboratoire Geomateriaux et Environnement (EA 4508), UPEM, Marne-la-Vallee, 77454, France. Electronic address: yoan.pechaud@u-pem.fr"
Journal Title:		J Hazard Mater
Year:		2022
Volume:		20210922
Issue:		Pt A
Page Number:		127300 -
DOI:		10.1016/j.jhazmat.2021.127300
ISSN/ISBN:		1873-3336 (Electronic) 0304-3894 (Linking)
Abstract:		"Volatilization of hazardous hydrophobic organic compounds is often observed in many water, wastewater and soil treatment (bio)processes. Several models have been developed to quantify and predict gas-liquid pollutant transfer, being the proportionality coefficient model (PCM) one of the most commonly used, particularly in wastewater treatment. The PCM is based on the use of oxygen as a reference compound, which has a low resistance to the transfer in the gas phase. However, this resistance might be important for (semi-)volatile organic compounds - or (semi-)VOCs, which may render the use of the PCM model inaccurate. This study proposes an experimental methodology and a modeling approach for the use of the two-reference compound model (2RCM) that considers both the liquid-side and the gas-side resistances, by using water and oxygen as references. Results showed that the 2RCM predicts more accurately the overall mass transfer coefficients than the PCM for a VOC and two semi-VOCs tested in this study. In addition, the 2RCM was found to be a more robust method to estimate mass transfer coefficient of any compound and its use can be extrapolated to all substances. Finally, the relevance and limitations of both models was established"
Keywords:		*Volatile Organic Compounds Volatilization Water *Water Purification HOCs Henry's law constant Mass transfer kinetics Mass transfer modeling Reference compounds;
Notes:		"MedlinePino-Herrera, Douglas O Fayolle, Yannick van Hullebusch, Eric D Huguenot, David Esposito, Giovanni Pechaud, Yoan eng Netherlands 2021/10/05 J Hazard Mater. 2022 Feb 15; 424(Pt A):127300. doi: 10.1016/j.jhazmat.2021.127300. Epub 2021 Sep 22"