Development of the annamox process for the removal of ammonia from mining effluents

开发用于去除采矿废水中氨的厌氧氧化工艺

• 批准号: 529751-2018
• 负责人: Mulligan, Catherine
• 金额: $ 1.82万
• 依托单位: Concordia University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 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=660412
• 关键词: Development; annamox; process; removal; ammonia

Agnico Eagle Mines Ltd. is a senior Canadian gold mining company with exploration and development**activities in Canada since 1957. The extract and recovery of gold from ores processes produce wastewater high**in cyanide compounds and sulfate- and nitrogen-based contaminants. Currently, the wastewater is treated with**a series of chemical and biological processes but cannot meet mining effluent regulations due to the complexity**and toxicity of such contaminants. A biological nitrogen removal technology (BioCAST) based on a recently**discovered process, known as combined partial nitrification and anammox, can potentially be used to remove**the remaining nitrogen from the wastewater to support the company in the effective treatment of**nitrogen-contaminated wastewater. The main objectives are to investigate the potential application of this**technology for the treatment of nitrogen-contaminated wastewater and (2) to assess the effect of wastewater on**the microbial communities using 16S rRNA. The pilot tests will be conducted in two phases (a two-month**followed by a four-month phase) characterized by the nitrogen concentrations of the wastewater (sample 1;**effluent after the chemical treatment processes and the first step of the biological treatment of the existing**WWTP, sample 2; effluent right after the chemical treatment) and the BioCAST reactor operating parameters.**The development of PN/Anammox-based technology in this project will lead to a sustainable and economically**viable nitrogen removal from gold mine wastewater in Canada.

Agnico Eagle Mines Ltd.是一家资深的加拿大金矿公司，自1957年以来一直在加拿大从事勘探和开发活动。从矿石中提取和回收黄金的过程会产生含有大量氰化物、硫酸盐和氮基污染物的废水。目前，废水是用 ** 一系列化学和生物工艺处理的，但由于这些污染物的复杂性 ** 和毒性，不能满足采矿废水的规定。基于最近发现的工艺的生物脱氮技术（BioCAST），被称为联合部分硝化和厌氧氨氧化，可以用于去除废水中剩余的氮，以支持该公司有效处理氮污染的废水。主要目的是探讨该技术在氮污染废水处理中的潜在应用;（2）利用16 SrRNA评估废水对微生物群落的影响。中试将分两个阶段进行（两个月 **，然后是四个月阶段），其特征是废水的氮浓度（样品1;** 化学处理工艺和现有 ** 污水处理厂生物处理第一步后的流出物，样品2;化学处理后的流出物）和BioCAST反应器操作参数。**本项目中PN/Anammox技术的开发将导致加拿大金矿废水中可持续和经济上可行的脱氮。