Bioremediation of mining-impacted water through combining microbes to enhance metal and nitrogen-based compounds removal

通过结合微生物来增强金属和氮基化合物的去除，对受采矿影响的水进行生物修复

• 批准号: 561057-2020
• 负责人: Bouafif, Hassine
• 金额: $ 5.46万
• 依托单位: Cégep de l'Abitibi-Témiscamingue
• 依托单位国家: 加拿大
• 项目类别: Applied Research and Development Grants - Level 2
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=723965
• 关键词: Bioremediation; mining; impacted; water; through

The Centre Technologique des Résidus Industriels (CTRI) affiliated to the College of Abitibi-Temiscamingue collaborates with Probioshpere Inc. to modify and integrate a novel biological approach for ammonia-based compounds (NBCs) treatment in a real gold mine effluent. Preliminary tests at lab-scale using Membrane Bio-Reactor (MBR) were carried out through NSERC's Engage Grant 544634-19 and promising results as ammonia (NH4+) and COD removal at room temperature using Archaea and nitrifying bacteria were observed with a removal efficiency up to 95% (using Probiosphere's commercialized bacterial consortium). However, the MBR configuration wasn't suitable for a full exploitation of the bacterial potential. In fact, decreasing hydraulic retention time (HRT) less than 24 hours brought up a membrane fowling problem due to high total suspended solids (TSS). Modification of the MBR reactor to be adapted to a real pilot scale conditions (high flow and low HRT) and installing the new configuration in a mine site for a pilot tests will be a great opportunity to evaluate, validate and optimize bacterial efficiency in real conditions and at lower temperatures.This project is critical for validation and subsequent commercialization of Probiosphere Inc. bacterial consortium for treating mine effluents in Quebec and Canada and will, at the same time, offer to CTRI an opportunity to strengthen its expertise in this research field.

Center TechnologiquedesRésidusIndustriels（CTRI）隶属于Abitibi-Temiscamingue学院，与Probioshpere Inc.合作，以实际金矿效应来修改和整合基于氨的化合物（NBC）治疗的新型生物学方法。使用膜生物反应器（MBR）在实验室尺度进行初步测试，通过NSERC的参与者赠款544634-19进行，并在室温下使用古细菌和硝化细菌在室温下降解作为氨（NH4+）的承诺结果，并以降解效率（最高可降低了95％）（使用概率化量）（使用概率化量）。但是，MBR构型不适合完全剥削细菌潜力。实际上，由于较高的总悬浮固体（TSS），少于24小时的氢保留时间（HRT）降低了膜的杂音问题。 Modification of the MBR reactor to be adapted to a real pilot scale conditions (high flow and low HRT) and installing the new configuration in a mine site for a pilot tests will be a great opportunity to evaluate, validate and optimize bacteria efficiency in real conditions and at lower temperatures.This project is critical for validation and subsequent commercialization of Probiosphere Inc. Bacterial consortium for treating mine effects in Quebec and Canada and will,同时，为CTRI提供了在该研究领域增强其专业知识的机会。