Development of an annamox process for mining effluents

开发采矿废水的厌氧氧化工艺

• 批准号: 570493-2021
• 负责人: Mulligan, Catherine
• 金额: $ 12.75万
• 依托单位: Concordia University
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 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=723198
• 关键词: Development; annamox; process; mining; effluents

The development of partial nitrification (PN)/Anammox-based technology with ozonation as a pre-treatment is the main objective for this two-year project proposal for a NSERC Alliance Mission grant. The process uses a special BioCAST bioreactor that is a potentially viable ammonia nitrogen removal from gold mine wastewater in Quebec due to significantly lower costs, energy consumption and solid waste generation. High levels of contamination with nitrogen and other components and high salinity are particularly problematic for mining companies. The main objectives are to: (1) investigate the potential application of PN/Anammox process for simultaneous removal of nitrogen-based contaminants from gold mine, (2) evaluate pre-treatment using ozone microbubbles, (3) train highly qualified personnel (HQP) in mine water management and (4) strengthen the collaboration between the mining and water industries and academia to enable adoption of the nitrogen removal processes. The project is a collaboration between Agnico Eagle Mines Ltd., Concordia, UQAT and BioCAST Systems for the training of HQP (undergraduate, Masters, and post-doctoral levels) for future employment in the mining industry. The project includes the following phases at pilot scale: (i) Characterization of the wastewater effluents; (ii) evaluation of an ozonation pre-treatment with microbubbles; (iii) evaluation an PN/Anammox-based treatment system; (iv) evaluation of a combined pretreatment with the biological treatment system dentification of important factors influencing the performance and operation of the developed treatment system, and (v) technical, environmental, social and economic assessment of this process train for its incorporating into the company existing wastewater treatment at active gold mine sites. The water treatment systems will enable the mining companies to reduce operating costs as well as energy and sludge requirements, improve the potential for water reuse, protect the environment and enable the improvement of their environmental practices and their public image. These research orientations will contribute and foster an integrated approach for understanding the water-energy nexus in Canada and internationally.

开发以臭氧化为预处理的部分硝化 (PN)/厌氧氨氧化技术是 NSERC 联盟任务拨款的两年期项目提案的主要目标。该工艺采用特殊的 BioCAST 生物反应器，由于成本、能源消耗和固体废物产生显着降低，该生物反应器有望从魁北克金矿废水中去除氨氮。氮和其他成分的高污染度以及高盐度对于采矿公司来说尤其是个问题。主要目标是：(1) 研究 PN/Anammox 工艺同时去除金矿中氮基污染物的潜在应用，(2) 评估使用臭氧微泡的预处理，(3) 培训高素质人员（HQP） ）在矿井水管理方面；（4）加强采矿业和水工业与学术界之间的合作，以促进脱氮工艺的采用。 该项目是 Agnico Eagle Mines Ltd.、Concordia、UQAT 和 BioCAST Systems 之间的合作项目，旨在培训 HQP（本科生、硕士和博士后级别），以便他们将来在采矿业就业。该项目包括以下中试阶段： (i) 废水排放特征分析； (ii) 微泡臭氧预处理的评价； (iii) 评估基于 PN/Anammox 的处理系统； (iv) 评估联合预处理与生物处理系统，确定影响所开发处理系统性能和运行的重要因素，以及 (v) 对该工艺系列进行技术、环境、社会和经济评估，以便将其纳入公司活跃金矿场现有的废水处理。水处理系统将使采矿公司能够降低运营成本以及能源和污泥需求，提高水再利用的潜力，保护环境并改善其环境实践和公众形象。这些研究方向将有助于并促进采用综合方法来理解加拿大和国际上的水与能源关系。