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Characterization and treatment of comtaminants of emerging concern in mine effluents

Characterization and treatment of comtaminants of emerging concern in mine effluents
矿山废水中新出现的污染物的表征和处理
批准号:
530091-2018
负责人:
Neculita, CarmenMihaela
金额:
$7.48万
依托单位国家:
加拿大
项目类别:
Collaborative Research and Development Grants
财政年份:
2018
资助国家:
加拿大
项目状态:
已结题
起止时间:
2018-01-01 至 2019-12-31

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项目成果

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中文摘要
翻译
该项目涉及三所大学、一个研究中心和四个采矿业合作伙伴,旨在**表征和处理矿山废水中的新出现问题污染物(CECs)。在**这项研究的背景下,矿山废水中的CEC包括四类:1)新污染物(例如,锰、硒、锑);2)**常见污染物(例如,砷、铜、锌),但在寒冷气候等敏感环境中的目标浓度很低**;3)难以处理的污染物(例如硫酸盐、盐度);以及4)氮化合物**(氨、亚硝酸盐和硝酸盐)。其中一些污染物目前通过水生毒性**评估进行监测。预计在不久的将来会有具体的排放标准,但由于CECs处理的操作挑战**,包括复杂的化学成分、持久性、**氧化或还原条件的要求、缺乏已证实的Batea,以及对**污染物混合物和可变出水质量的最佳效率条件的了解不足,这些标准将很难遵守。因此,矿业公司未来在水管理方面的优先事项应该是:1)改进/开发CEC的可持续处理**技术;2)限制剩余盐度的产生;3)产生稳定的污泥。这项研究旨在**了解矿井废水的特性和CECs处理工艺的性能改进**,围绕3个目标:O1)彻底表征来自4个活跃的**矿山的废水以鉴定CECs;O2)CECs的处理,重点关注浓度和温度;以及o3)**对含有CECs的实际矿井废水进行处理前后的水生毒性评估。**方法将包括对实际流出物的表征,然后用模拟和**真实流出物进行可处理性测试,以及对最佳性能解决方案的毒性评估。一个具体的目标是为CECs的准确形态分析和处理制定**方案。通过**对技术和环境方面的**深入了解,所取得的成果将使**能够在工业伙伴现场和加拿大其他地方更好地**实现潜在的应用。该项目将培养3名博士和2名PDF。
英文摘要
This project involves three universities, one research center, and four mining industry partners, and aims at the**characterization and treatment of contaminants of emerging concern (CECs) in mine effluents. In the context of**this study, the CECs in mine effluents include four categories: 1) new contaminants (e.g. Mn, Se, Sb); 2)**common contaminants (e.g. As, Cu, Zn), but with very low target concentrations in sensitive environments,**such as the cold climate; 3) difficult to treat contaminants (e.g. sulfate, salinity); and 4) nitrogen compounds**(ammonia, nitrites, and nitrates). Some of these contaminants are currently monitored via aquatic toxicity**assessment. Specific discharge criteria are expected in the near future, but they would be difficult to comply**with because of the operational challenges for CECs treatment, including a complex chemistry, persistency,**requirements of oxidizing or reducing conditions, lack of a proven BATEA, and insufficient knowledge as to**the optimal efficiency conditions with mixtures of contaminants and variable effluent quality. Thus, future**priorities of mining companies in water management should: 1) improve/develop sustainable treatment**technologies for CECs; 2) limit residual salinity creation; and 3) produce stable sludge. The study, which aims**knowledge advancing on the characterization of mine effluents and performance improvement of CECs**treatment processes, is centered around 3 objectives: O1) thorough characterization of effluents from 4 active**mines for CECs identification; O2) treatment of CECs, with focus on concentration and temperature; and O3)**evaluation of aquatic toxicity, before and after treatment of actual mine effluents containing CECs. The**methodology will consist of characterization of actual effluents, followed by treatability testing with mock and**real effluents, and toxicity evaluation of the optimal performance solution. A specific goal is to develop**protocols for accurate speciation analysis and treatment of CECs. The results obtained would allow, through an**advanced understanding of the technological and environmental aspects, better potential applications on a large**scale, on the sites of the industrial partners and elsewhere in Canada. The project will train 3 PhD and 2 PDF.
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Characterization and treatment of comtaminants of emerging concern in mine effluents
Treatment of Contaminated Mine Water
Treatment of Contaminated Mine Water
Traitement passif des eaux minières contaminées
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