Study of the Feasibility of Reverse Osmosis Membrane Process for Selenium Removal and Water Reuse of Mine Water in Cold Climates

寒冷地区矿井水反渗透膜工艺除硒及回用可行性研究

基本信息

批准号：
544543-2019
负责人：
Bouafif, Hassine
金额：
$ 1.82万
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 1
财政年份：
2019
资助国家：
加拿大
起止时间：
2019-01-01 至 2020-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=681176
关键词：
Study Feasibility Reverse Osmosis Membrane

项目摘要

Considering versatile utilization of water in mining activities, huge amount of contaminated effluent that may contain high selenate and selenite concentration in mine effluent. Even after lime precipitation, as a conventional treatment method, selenium concentration is more than 200 µg.L-1. In order to resolve this problem, different chemical, biological and physical process such as, precipitation, ion exchange, electro-coagulation and zero valent iron have been widely investigated, yet, none of them is economically feasible. Furthermore, future regulations trend to force mine industry to reduce detrimental effect on the surrounding environment. Indeed, water reuse will be an interesting and economically viable approach toward zero-waste mining. Reverse osmosis is an attractive option, which could meet both of those requirements. In this context, Thetis Environmental has developed a new generation of reverse osmosis (RO) capable of effective separation of high salt content minerals into pure water permeate and concentrated brine. As they are collaborating with other industrial sectors, investigating other markets including mine sector is very promoting for the company. For this attempt, they tend to collaborate with the CTRI to demonstrate and validate the efficiency of their RO technology for selenium removal in mine effluents especially in cold climate. For achieving the project's objectives within the given deadlines, this project will be profited from a multidisciplinary team and an operational R&D infrastructure; essential ingredients for achieving the project's objectives within the given deadlines

考虑在采矿活动中使用多功能用水，大量受污染的有效性可能含有高硒酸盐和亚硒酸盐的浓度。即使在石灰降水之后，作为一种常规的治疗方法，硒浓度也超过200 µg.l-1。为了解决这个问题，已经广泛研究了不同的化学，生物学和物理过程，例如降水，离子交换，电凝和零瓦伦特铁，但在经济上都不是可行的。此外，未来的法规趋势迫使矿业行业减少探测器对周围环境的影响。实际上，水资源将是一种有趣且经济上可行的方法，用于零废物采矿。反渗透是一个有吸引力的选择，可以满足这两个要求。在这种情况下，Thetis环境发展了新一代的反渗透（RO），能够将高盐含量矿物质有效分离为纯净水渗透并浓缩盐水。当他们与其他工业部门合作时，调查包括矿业在内的其他市场正在为公司促进。为了进行这种尝试，他们倾向于与CTRI合作，以证明和验证其RO技术在矿山效应中尤其是在寒冷的气候下的硒去除效率。为了在给定的截止日期内实现该项目的目标，该项目将从多学科团队和运营研发基础设施中获利；在给定截止日期内实现项目目标的基本意义