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, HassineHB
• 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: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=746655
• 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.

隶属于阿比比-特米斯卡明格学院的rsamsidus工业技术中心（CTRI）与Probioshpere公司合作，修改和整合了一种新的生物方法，用于在真正的金矿废水中处理氨基化合物。通过NSERC的Engage Grant 544634-19在实验室规模上使用膜生物反应器（MBR）进行了初步测试，并观察到在室温下使用古细菌和硝化细菌去除氨（NH4+）和COD的有希望的结果，去除效率高达95%（使用Probiosphere的商业化细菌联合体）。然而，MBR配置不适合充分利用细菌的潜力。事实上，减少水力停留时间（HRT）少于24小时，由于总悬浮固体（TSS）高，会导致膜捕鸟问题。改造MBR反应器以适应实际中试规模条件（高流量和低HRT），并将新配置安装在矿场进行中试试验，将是在实际条件和较低温度下评估、验证和优化细菌效率的绝佳机会。该项目对于益生菌圈公司细菌联合体在魁北克和加拿大处理矿山废水的验证和随后的商业化至关重要，同时将为CTRI提供一个机会，加强其在这一研究领域的专业知识。