eprintid: 1734 rev_number: 12 eprint_status: archive userid: 6 dir: disk0/00/00/17/34 datestamp: 2016-09-15 11:48:51 lastmod: 2017-02-08 12:21:35 status_changed: 2016-09-15 11:48:51 type: article metadata_visibility: show creators_name: Islam, Md. Shahinoor creators_name: Moreira, Jesús creators_name: Chelme-Ayala, Pamela creators_name: Gamal El-Din, Mohamed corp_creators: Department of Civil and Environmental Engineering, University of Alberta, Canada corp_creators: Department of Civil and Environmental Engineering, University of Alberta, Canada corp_creators: Department of Civil and Environmental Engineering, University of Alberta, Canada corp_creators: Department of Civil and Environmental Engineering, University of Alberta, Canada title: Prediction of naphthenic acid species degradation by kinetic and surrogate models during the ozonation of oil sands process-affected water subjects: O subjects: RCA1 subjects: SHC subjects: SZ divisions: SHEER full_text_status: none keywords: Correlations; Kinetic modeling; Naphthenic acids species; Ozonation; Speciation; Structure–reactivity abstract: Oil sands process-affected water (OSPW) is a complex mixture of organic and inorganic contaminants, and suspended solids, generated by the oil sands industry during the bitumen extraction process. OSPW contains a large number of structurally diverse organic compounds, and due to variability of the water quality of different OSPW matrices, there is a need to select a group of easily measured surrogate parameters for monitoring and treatment process control. In this study, kinetic and surrogate correlation models were developed to predict the degradation of naphthenic acids (NAs) species during the ozonation of OSPW. Additionally, the speciation and distribution of classical and oxidized NA species in raw and ozonated OSPW were also examined. The structure-reactivity of NA species indicated that the reactivity of individual NA species increased as the carbon and hydrogen deficiency numbers increased. The kinetic parameters obtained in this study allowed calculating the evolution of the concentrations of the acid-extractable fraction (AEF), chemical oxygen demand (COD), and NA distributions for a given ozonation process. High correlations between the AEF and COD and NA species were found, suggesting that AEF and COD can be used as surrogate parameters to predict the degradation of NAs during the ozonation of OSPW. date: 2014-06 date_type: published publication: Science of The Total Environment volume: 493 publisher: Elsevier pagerange: 282-290 id_number: doi:10.1016/j.scitotenv.2014.05.138 issn: 0048-9697 official_url: http://doi.org/10.1016/j.scitotenv.2014.05.138 access_IS-EPOS: limited owner: Publisher citation: Islam, Md. Shahinoor and Moreira, Jesús and Chelme-Ayala, Pamela and Gamal El-Din, Mohamed (2014) Prediction of naphthenic acid species degradation by kinetic and surrogate models during the ozonation of oil sands process-affected water. Science of The Total Environment, 493. pp. 282-290. DOI: https://doi.org/10.1016/j.scitotenv.2014.05.138