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: $ 5.44万
• 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: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=648580
• 关键词: Bugs; veggies; tailings; management; tools

Current approaches for tailings treatment, such as evaporation, freeze-thaw, polymer amendment, and**centrifugation are high cost alternatives due to large areas required, time needed for drying and limitations with**deposit depth. This project, led by three applied research centres at the Northern Alberta Institute of**Technology (NAIT) in collaboration with Canada's Oil Sands Innovation Alliance (COSIA) and the Institute**for Oil Sands Innovation (IOSI), aims to demonstrate a novel approach to simultaneously dewater, consolidate**and remediate mature fine tailings (MFT) by (1) growing native boreal plant species that effectively germinate**and/or establish and dewater MFT, and (2) enhancing native plant establishment by augmenting MFT with**known consortia of indigenous bacteria with proven potential to promote plant growth, enhance nutrient**cycling and degrade toxic hydrocarbon compounds. The study aims to overcome current barriers by using**native woody and herbaceous boreal species with high evapotranspiration rates and proven potential to**germinate and establish on MFT. Bacterial cultures capable of degrading specific organic compounds such as**naphtha, and fix nitrogen to ammonium, will be isolated and enriched from MFT sources. The MFT will be**inoculated with the bacterial cultures using biocompatible carriers. The selected boreal species will then be**germinated and/or established on the inoculated MFT bioaugmenting indigenous bacteria, providing high**remediation potential to the rhizosphere, where root exudates will further enhance their activity. The outcome**will 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 to**simultaneously stabilize and remediate tailings, thereby transforming tailing into a soil system capable of**sustaining reclamation and reforestation efforts, and facilitating mine closure plans.

当前的尾矿处理方法，例如蒸发，冻融，聚合物修订和**离心方法是高成本的替代方法，这是由于所需的大面积，干燥所需的时间以及**存款深度的限制。该项目由艾伯塔省北部**技术研究所的三个应用研究中心（NAIT）与加拿大油砂创新联盟（Cosia）和油基砂创新（IOSI）合作，旨在证明一种新颖的方法，以同时脱离了本地的工厂（1），该植物（1）效果（1）生长（1）。发芽**和/或建立和脱水MFT，以及（2）通过用**已知的土著细菌财团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**循环和降解有毒的碳氢化合物化合物。该研究旨在通过使用蒸散率高的**本地木本和草本北方物种来克服当前障碍，并证明了在MFT上发芽和建立的潜力。能够降解特定有机化合物的细菌培养物，例如** naphtha，并将氮固定到铵中，将被分离并富含MFT来源。使用生物相容性载体将MFT与细菌培养物接种。然后，所选的北方物种将在接种的MFT生物仪上发芽和/或建立，从而为根际提供了很高的**修复潜力，在那里根部渗出量将进一步增强其活性。结果**将是一个热情好客的环境，用于植物的生长和尾矿中养分循环途径的恢复。