The base mine lake toxicity identification and evaluation study

基矿湖泊毒性识别与评价研究

• 批准号: 436315-2012
• 负责人: Martin, Jonathan
• 金额: $ 16.16万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=553048
• 关键词: base; mine; lake; toxicity; identification

End-pit-lakes (EPLs) are currently the main strategy for large-scale and long-term remediation of toxic oil sands process-affected water (OSPW). However, as recently summarized by the Royal Society of Canada, there are great unknowns with respect to the rate and extent by which EPLs might facilitate this important function. A major source of uncertainty is that the chemicals which impart toxicity to OSPW remain unknown, and the aquatic persistence of most chemicals in OSPW has never been studied. Here, an integrated research plan has been designed that will use state-of-the-art analytical technologies, toxicity bioassays, molecular biology, microbial biodegradation, and monitoring of tailings ponds to identify the most toxic and persistent chemicals in OSPW. The specific focus of this study is OSPW from an active settling basin at Syncrude Canada Ltd - "the West-In-Pit" - which will serve as the source of water for Base-Mine Lake, Canada's first oil sands EPL. Syncrude's Base Mine Lake project will be commissioned in 2012/2013, thus the proposed work is conveniently coincident with the lake's start-up phase. The data from this study will be directly applied by Syncrude to monitoring and predicting the detoxification trajectory of Base Mine Lake, and will thereby inform water management options and regulatory decision making on water quality criteria for discharge. Approximately 30 other oil sands EPLs are planned, thus this research may be widely applicable or may serve as a model for other EPL projects.

尾矿湖是目前大规模和长期修复受有毒油砂工艺影响的水体的主要战略。然而，正如加拿大皇家学会最近总结的那样，关于EPL可能在多大程度上促进这一重要功能，仍有很大的未知数。不确定性的一个主要来源是，对OSPW具有毒性的化学品仍然未知，而且OSPW中大多数化学品的水中持久性从未被研究过。在这里，已经设计了一个综合研究计划，将使用最先进的分析技术、毒性生物测定、分子生物学、微生物生物降解和尾矿池监测来确定OSPW中最有毒和最持久的化学物质。这项研究的具体焦点是加拿大辛克鲁德有限公司一个活跃的沉淀池的OSPW-“the West-in-Pit”，该盆地将作为加拿大第一个油砂EPL-Base-MINE Lake的水源。辛克鲁德的基础矿湖项目将于2012/2013年投产，因此，拟议的工作与该湖的启动阶段不谋而合。这项研究的数据将直接被辛克鲁德应用于监测和预测基矿湖的解毒轨迹，从而为水管理选择和排放水质标准的监管决策提供参考。另外还有约30个油砂EPL项目正在规划中，因此本研究可能具有广泛的适用性，或可作为其他EPL项目的样板。