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.是一家加拿大高级黄金矿业公司，自1957年以来在加拿大进行勘探和开发**活动。从矿石工艺中提取和回收黄金的提取和回收产生了氰化物化合物中的废水高**，以及基于硫酸盐和氮的污染物。目前，废水经过**一系列化学和生物学过程，但由于这种污染物的复杂性和毒性，无法满足采矿废水法规。基于最近发现的过程（称为局部硝化联合和Anammox）的生物氮去除技术（生物播）可能可用于去除废水中的剩余氮，以支持该公司有效治疗** ** **氮污染的废水。主要目的是研究这种**技术在处理氮污染的废水和（2）使用16S rRNA的**微生物群落的影响。试点测试将分为两个阶段（两个月**，然后是四个月的阶段），其特征是废水的氮浓度（样品1; **化学处理过程后的废水和第一步对现有的** WWTP的生物处理，样本2；从加拿大的金矿废水中除去氮。