Novel Effluent Desalination Processes: Sustainable Water Recovery and Energy Generation in Mining Sites
新型污水淡化工艺:矿场可持续水回收和能源生产
基本信息
- 批准号:RGPIN-2020-04262
- 负责人:
- 金额:$ 2.4万
- 依托单位:
- 依托单位国家:加拿大
- 项目类别:Discovery Grants Program - Individual
- 财政年份:2022
- 资助国家:加拿大
- 起止时间:2022-01-01 至 2023-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The proposed research program aims to reduce the environmental footprint of the mining and metals industry, especially to the extent related to water usage. We aim to develop innovative holistic scalable energy efficient and environmentally friendly effluent desalination processes. The objectives are: (i) to reduce the contaminated aqueous waste volume by recovering water from process solutions, effluents, and tailings ponds at low cost, (ii) to upgrade the valuable metal content (if any) in the remaining brine, thus making its re-processing economically viable, and (iii) to utilize the controlled mixing of effluents in the tailings ponds to generate renewable energy. The proposed research program will train HQP in innovative processes to recover water and energy from effluents and tailings ponds. We hypothesize that these novel processes will simultaneously increase the water recovery yield from effluents and lower the energy footprint of the sector. We intend to primarily focus on technologies that operate at sub-zero temperatures to take advantage of the Canadian cold winter climate and recover water in the form of pure ice. Not only is the energy for freezing 7 times less than that of evaporation, but also it is free several months per year in Canada during winter. The processes we propose to work on are freeze concentration (FC) and gas hydrate desalination (HyDesal). The novelty of our work is based on the use of cold ultra fine gas bubbles (i.e., mixture of micro- and nano-bubbles). Under controlled conditions, the bubbles will serve as nuclei for ice formation, resulting in the recovery of water in the form of pure tiny ice crystals, without allowing impurities to enter into the ice matrix. Also, we intend to simplify the treatment of effluent streams and tailings for water recovery upon passing the water from these multi-component aqueous streams into environmentally benign single-component draw solutions via forward osmosis (FO). FO requires no external energy input; instead, it is driven by the osmotic pressure difference between the effluents and more concentrated draw solutions. FC will be used to recover clean water from the resulting diluted draw solution, which requires energy. Finally, we intend to develop a membrane process, salinity gradient power, to recover the released energy of mixing of the effluents discharged into the tailings ponds through their controlled mixing in the latter, similar to how waste heat is recovered from plants. This research program contributes to the protection of people's right to clean water and advances the competitiveness of the Canadian mining and metals industry in an era that environmental legislation barriers become stricter due to climate change. It also generates a strong potential for collaboration with Canadian and international organizations and industries and aims to position Canada as the world's prominent country in zero liquid discharge research, regulations, and applications.
拟议的研究计划旨在减少采矿和金属行业的环境足迹,特别是与用水有关的程度。我们的目标是开发创新的整体可扩展的能源效率和环境友好的废水淡化工艺。其目标是:(i)通过以低成本从工艺溶液、流出物和尾矿池中回收水来减少受污染的含水废物体积,(ii)提高剩余盐水中的有价金属含量(如果有的话),从而使其再处理在经济上可行,以及(iii)利用尾矿池中流出物的受控混合来产生可再生能源。拟议的研究计划将培训HQP在创新的过程中,以回收废水和尾矿池的水和能源。我们假设,这些新工艺将同时提高废水的水回收率,并降低该行业的能源足迹。我们打算主要专注于在零度以下温度下运行的技术,以利用加拿大寒冷的冬季气候,并以纯冰的形式回收水。不仅冷冻的能量比蒸发少7倍,而且在加拿大每年冬天有几个月是免费的。我们建议开展的工艺是冷冻浓缩(FC)和气体水合物脱盐(HyDesal)。我们工作的新奇是基于使用冷的超细气泡(即,微米和纳米气泡的混合物)。在受控条件下,气泡将作为冰形成的核,从而以纯净的微小冰晶形式回收水,而不允许杂质进入冰基质。此外,我们打算通过正向渗透(FO)将来自这些多组分水性流的水传递到环境友好的单组分汲取溶液中,从而简化用于水回收的流出物流和尾矿的处理。FO不需要外部能量输入;相反,它由流出物和更浓缩的汲取溶液之间的渗透压差驱动。FC将用于从产生的稀释的汲取溶液中回收清洁水,这需要能量。最后,我们打算开发一种膜过程,盐度梯度动力,以回收释放的能量的混合排放到尾矿池,通过他们的控制混合在后者,类似于废热是如何从工厂回收的废水。该研究计划有助于保护人们获得清洁水的权利,并在环境立法障碍因气候变化而变得更加严格的时代提高加拿大采矿和金属行业的竞争力。它还产生了与加拿大和国际组织和行业合作的强大潜力,旨在将加拿大定位为世界上零液体排放研究,法规和应用的主要国家。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Kolliopoulos, Georgios其他文献
Effect of chemical species and temperature on the stability of air nanobubbles.
- DOI:
10.1038/s41598-023-43803-6 - 发表时间:
2023-10-04 - 期刊:
- 影响因子:4.6
- 作者:
Montazeri, Seyed Mohammad;Kalogerakis, Nicolas;Kolliopoulos, Georgios - 通讯作者:
Kolliopoulos, Georgios
An improved model for membrane characterization in forward osmosis
- DOI:
10.1016/j.memsci.2019.117668 - 发表时间:
2020-03-15 - 期刊:
- 影响因子:9.5
- 作者:
Martin, Jeffrey T.;Kolliopoulos, Georgios;Papangelakis, Vladimiros G. - 通讯作者:
Papangelakis, Vladimiros G.
Hybrid forward osmosis-freeze concentration: A promising future in the desalination of effluents in cold regions
- DOI:
10.1016/j.jwpe.2022.102711 - 发表时间:
2022-03-15 - 期刊:
- 影响因子:7
- 作者:
Kolliopoulos, Georgios;Xu, Chenbo;Papangelakis, Vladimiros G. - 通讯作者:
Papangelakis, Vladimiros G.
Energy requirements in the separation-regeneration step in forward osmosis using TMA-CO2-H2O as the draw solution
- DOI:
10.1016/j.cherd.2018.10.015 - 发表时间:
2018-12-01 - 期刊:
- 影响因子:3.9
- 作者:
Kolliopoulos, Georgios;Martin, Jeffrey T.;Papangelakis, Vladimiros G. - 通讯作者:
Papangelakis, Vladimiros G.
Forward Osmosis and Freeze Crystallization as Low Energy Water Recovery Processes for a Water-Sustainable Industry
- DOI:
10.1007/s40710-018-0316-5 - 发表时间:
2018-11-01 - 期刊:
- 影响因子:4.4
- 作者:
Kolliopoulos, Georgios;Shum, Eric;Papangelakis, Vladimiros G. - 通讯作者:
Papangelakis, Vladimiros G.
Kolliopoulos, Georgios的其他文献
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{{ truncateString('Kolliopoulos, Georgios', 18)}}的其他基金
Novel Effluent Desalination Processes: Sustainable Water Recovery and Energy Generation in Mining Sites
新型污水淡化工艺:矿场可持续水回收和能源生产
- 批准号:
RGPIN-2020-04262 - 财政年份:2021
- 资助金额:
$ 2.4万 - 项目类别:
Discovery Grants Program - Individual
Novel Effluent Desalination Processes: Sustainable Water Recovery and Energy Generation in Mining Sites
新型污水淡化工艺:矿场可持续水回收和能源生产
- 批准号:
RGPIN-2020-04262 - 财政年份:2020
- 资助金额:
$ 2.4万 - 项目类别:
Discovery Grants Program - Individual
Novel Effluent Desalination Processes: Sustainable Water Recovery and Energy Generation in Mining Sites
新型污水淡化工艺:矿场可持续水回收和能源生产
- 批准号:
DGECR-2020-00462 - 财政年份:2020
- 资助金额:
$ 2.4万 - 项目类别:
Discovery Launch Supplement
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