<br>区分受油砂过程影响水 (OSPW) 影响的地下水与受天然沥青影响的地下水的进展。,Environmental Science & Technology

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区分受油砂过程影响水 (OSPW) 影响的地下水与受天然沥青影响的地下水的进展。
Environmental Science & Technology ( IF 10.8 ) Pub Date : 2020-01-17 , DOI: 10.1021/acs.est.9b05040
L Mark Hewitt ₁ , James W Roy ₁ , Steve J Rowland ₂ , Greg Bickerton ₁ , Amila DeSilva ₁ , John V Headley ₃ , Craig B Milestone ₄ , Alan G Scarlett ₂ , Susan Brown ₁ , Christine Spencer ₁ , Charles E West ₂ , Kerry M Peru ₃ , Lee Grapentine ₁ , Jason M E Ahad ₅ , Hooshang Pakdel ₆ , Richard A Frank ₁

Affiliation

本研究的目的是改进分析方法，用于检测采矿安全壳中受油砂加工影响的水 (OSPW) 渗漏，并将任何此类渗漏与受艾伯塔省麦克默里地层影响的地下水中的天然沥青背景区分开来。采用改进的采样方法和对两组单芳酸的定量分析来分析 OSPW 和受沥青影响的自然背景地下水，以进行来源区分。两组单芳香酸在 OSPW 中均表现出显着富集，而含有酸可萃取有机物 (AEO) 杂原子离子类别的 O2/O4 比率未表现出诊断差异。通过评估单芳香酸来追踪已知的受 OSPW 影响的地下水羽流，证实了它们的诊断能力。第二个目标是评估人为衍生的人造甜味剂和全氟烷基物质和多氟烷基物质 (PFAS) 作为 OSPW 的潜在示踪剂。尽管在大多数 OSPW 样品中发现了安赛蜜和 PFAS，但受一般人类活动影响的地下水中的痕量水平使它们无法作为单独的强大示踪剂。然而，将它们与本研究中使用的其他指标一起纳入，有助于增强所开发的分层证据权重方法。然后，该方法被用来证实早期发现的 OSPW 迁移到地下水中，到达塔尔岛堤坝开垦池塘附近的阿萨巴斯卡河系统。

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Advances in Distinguishing Groundwater Influenced by Oil Sands Process-Affected Water (OSPW) from Natural Bitumen-Influenced Groundwaters.

The objective of this study was to advance analytical methods for detecting oil sands process-affected water (OSPW) seepage from mining containments and discriminating any such seepage from the natural bitumen background in groundwaters influenced by the Alberta McMurray formation. Improved sampling methods and quantitative analyses of two groups of monoaromatic acids were employed to analyze OSPW and bitumen-affected natural background groundwaters for source discrimination. Both groups of monoaromatic acids showed significant enrichment in OSPW, while ratios of O2/O4 containing heteroatomic ion classes of acid extractable organics (AEOs) did not exhibit diagnostic differences. Evaluating the monoaromatic acids to track a known plume of OSPW-affected groundwater confirmed their diagnostic abilities. A secondary objective was to assess anthropogenically derived artificial sweeteners and per- and polyfluoroalkyl substances (PFAS) as potential tracers for OSPW. Despite the discovery of acesulfame and PFAS in most OSPW samples, trace levels in groundwaters influenced by general anthropogenic activities preclude them as individual robust tracers. However, their inclusion with the other metrics employed in this study served to augment the tiered, weight of evidence methodology developed. This methodology was then used to confirm earlier findings of OSPW migrations into groundwater reaching the Athabasca River system adjacent to the reclaimed pond at Tar Island Dyke.

更新日期：2020-01-21

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