摘要：Distinct naphthenic acid (NA) species were isolated from oil sands process water (OSPW) into 20 fractions via silver-ion solid phase extraction, prior to treatment using potassium ferrate(VI). Untreated and treated fractions F1-F20 were characterized using ultra performance liquid chromatography traveling-wave ion mobility time-of-flight mass spectrometry to identify classical NM (aliphatic O-2 -NAs mainly found in fractions F1-14), aromatic NM (aromatic O-2-NAs in F6-F9), oxidized NAs (O-3-,O-4-, and O-5-NAs in F14-F17), and sulfur-containing NAs (F16-F19). The Fe(Vl) oxidation reactivity of individual NA species was studied with minimized confounding effects from the complicated OSPW matrix. Aliphatic and aromatic O-2-NAs were found to have different reactivity towards Fe(VI) oxidation, with removals ranging from <50% up to 90% at 200 mg/L ferrate dose. The O-3-NAs and O-4-NAs from raw OSPW were recalcitrant species with slight degradation under Fe(VI) oxidation conditions. The Fe(VI) oxidation of O-2-NAs generated new O-3-NAs as byproducts or intermediate byproducts which finally resulted in more oxygen-rich O-x-NAs as the final byproducts depending on the Fe(VI) doses. Besides the obtained knowledge on chemical reactivity, current methodology (i.e., treatment of Ag-ion fractions of OSPW versus raw OSPW) could be applied to evaluate other treatment approaches as well as toxicity of distinct NA species for environmental applications. (C) 2019 Elsevier B.V. All rights reserved.

关键字：Ferrate oxidation Unconventional petroleum Naphthenic acids Traveling-wave ion mobility spectrometry OSPW

ISSN号：0048-9697

卷、期、页：卷: 672 页: 906-915

发表日期：2019-07-01

影响因子：4.900000

期刊分区（SCI为中科院分区）：二区

收录情况：SCI（科学引文索引印刷版）,ESI（基本科学指标数据库）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：Science of the Total Environment

参与作者：Huang, Rongfu,Wang, Chengjin,Chelme-Ayala, Pamela,El-Din, Mohamed Gamal

通讯作者：房治

第一作者：史权,徐春明

论文类型：期刊论文

论文概要：Huang, Rongfu,Wang, Chengjin,Chelme-Ayala, Pamela,房治,史权,徐春明,El-Din, Mohamed Gamal，Ferrate oxidation of distinct naphthenic acids species isolated from process water of unconventional petroleum production，Science of the Total Environment，2019，卷: 672 页: 906-915

论文题目：Ferrate oxidation of distinct naphthenic acids species isolated from process water of unconventional petroleum production