Bugs and veggies as tailings management tools

虫子和蔬菜作为尾矿管理工具

• 批准号: 506240-2016
• 负责人: Dambrowitz, Christopher
• 金额: $ 5.42万
• 依托单位: Northern Alberta Institute of Technology
• 依托单位国家: 加拿大
• 项目类别: Applied Research and Development Grants - Level 2
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=641262
• 关键词: Bugs; veggies; tailings; management; tools; Bugs; veggies; tailings; management; tools

Current approaches for tailings treatment, such as evaporation, freeze-thaw, polymer amendment, andcentrifugation are high cost alternatives due to large areas required, time needed for drying and limitations withdeposit depth. This project, led by three applied research centres at the Northern Alberta Institute ofTechnology (NAIT) in collaboration with Canada's Oil Sands Innovation Alliance (COSIA) and the Institutefor Oil Sands Innovation (IOSI), aims to demonstrate a novel approach to simultaneously dewater, consolidateand remediate mature fine tailings (MFT) by (1) growing native boreal plant species that effectively germinateand/or establish and dewater MFT, and (2) enhancing native plant establishment by augmenting MFT withknown consortia of indigenous bacteria with proven potential to promote plant growth, enhance nutrientcycling and degrade toxic hydrocarbon compounds. The study aims to overcome current barriers by usingnative woody and herbaceous boreal species with high evapotranspiration rates and proven potential togerminate and establish on MFT. Bacterial cultures capable of degrading specific organic compounds such asnaphtha, and fix nitrogen to ammonium, will be isolated and enriched from MFT sources. The MFT will beinoculated with the bacterial cultures using biocompatible carriers. The selected boreal species will then begerminated and/or established on the inoculated MFT bioaugmenting indigenous bacteria, providing highremediation potential to the rhizosphere, where root exudates will further enhance their activity. The outcomewill be a hospitable environment for plant growth and restoration of nutrient cycling pathways in the tailings.The project will benefit the oil sands operators with an environmentally and economically viable approach tosimultaneously stabilize and remediate tailings, thereby transforming tailing into a soil system capable ofsustaining reclamation and reforestation efforts, and facilitating mine closure plans.

当前的尾矿治疗方法，例如蒸发，冻融，聚合物修订和摄入式治疗方法是高成本的替代方法，这是由于所需的大面积，干燥所需的时间和限制的时间，而限制会导致深度。 This project, led by three applied research centres at the Northern Alberta Institute ofTechnology (NAIT) in collaboration with Canada's Oil Sands Innovation Alliance (COSIA) and the Institutefor Oil Sands Innovation (IOSI), aims to demonstrate a novel approach to simultaneously dewater, consolidateand remediate mature fine tailings (MFT) by (1) growing native boreal plant species that effectively GerminateAnd/或建立和脱水MFT，以及（2）通过增强本地细菌的MFT来增强本地植物的建立，具有促进植物生长的潜力，增强养分量和降解有毒的碳氢化合物化合物。该研究旨在通过使用高蒸散率的木质和草本北方物种来克服当前的障碍，并在MFT上证明潜在的潜在障碍。能够降解特定有机化合物（例如naphtha）和将氮固定到铵的细菌培养物将被分离并富含MFT来源。使用生物相容性载体将MFT与细菌培养物进行封为。然后，选定的北方物种将在接种的MFT生物仪上开始和/或建立，从而为根际提供了较高的物质潜能，在那里根部渗出液将进一步增强其活性。结果将是一个热情好客的环境，可以使尾矿中养分循环途径的恢复。该项目将使油砂运营商受益于环境和经济上可行的方法，可以使尾矿稳定并进行补救，从而使尾巴稳定，从而将尾巴变成有能力固定和重新培训的土壤系统的尾声，并面对矿山，并面对矿山。