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.

阿比蒂比-特米斯卡明格学院附属工业技术中心 (CTRI) 与 Probioshpere Inc. 合作，修改并整合了一种新颖的生物方法，用于在真实的金矿废水中进行初步测试。 -使用膜生物反应器（MBR）的规模是通过 NSERC 的参与补助金进行的544634-19 并观察到使用古细菌和硝化细菌在室温下去除氨 (NH4+) 和 COD 的结果，去除效率高达 95%（使用 Probiosphere 的商业化细菌群）。但是，MBR 配置并不适合。事实上，将水力停留时间 (HRT) 缩短到 24 小时以内会因总悬浮固体含量较高而导致膜污染问题。 (TSS) 改造 MBR 反应器以适应真正的中试规模条件（高流量和低 HRT），并在矿场安装新配置进行中试，这将是评估、验证和优化细菌的绝佳机会。该项目对于 Probiosphere Inc. 细菌联盟在魁北克和加拿大处理矿山废水的验证和后续商业化至关重要，同时将为 CTRI 提供一个加强其专业知识的机会这个研究领域。