Geotextile filtration to improve surface water quality

土工布过滤改善地表水质量

• 批准号: 549706-2019
• 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: Alliance Grants
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=721180
• 关键词: Geotextile; filtration; improve; surface; water

Eutrophication has been identified as one of the leading risks to surface water quality especially lake water quality in Canada. When lakes become eutrophic, there is a decrease in biodiversity, increase in turbidity and organic matter and the development of anoxic conditions. The increase in algal blooms provides poor aesthetics, taste and odor problems, is a hazard to bathers and pets and leads to increased health hazards due to potential toxin production. The objective of the study is to evaluate the effectiveness of non-woven geotextiles in reducing the nutrients and suspended solids to improve lake water quality, particularly for small communities that use surface water for drinking water and recreational purposes. This project will be a continuation of a recent on-site experiments conducted by using nonwoven geotextiles as filter media. The lakes are located in the Sainte-Anne-des-Lacs municipality, north of Montreal, Quebec. These have shown potential for improvement of surface water quality in terms of nutrients and solids removal. Therefore, the next step proposed is to test the filter in the lake in pilot tests to examine the factors affecting the phosphorus and other component removal efficiency under realistic conditions for future scale-up and implementation. This project is in collaboration with a geotextile manufacturer (Titan Environmental Containment) and the local community and will lead to a potential solution without chemical addition for the restoration of eutrophic lakes.

富营养化已被确定为地表水质的主要风险之一，尤其是加拿大的湖水质量。 当湖泊变得富营养时，生物多样性的下降，浊度和有机物的增加以及缺氧条件的发展。藻华的增加提供了较差的美学，味道和气味问题，对沐浴者和宠物有危害，并且由于潜在的毒素产生而导致健康危害增加。 该研究的目的是评估非编织土工刺激在减少养分和悬浮固体以提高湖水质量的有效性，尤其是对于使用地表水来饮用水和娱乐目的的小社区。该项目将延续通过使用非织造土工XTILE作为过滤器介质进行的最新现场实验。这些湖泊位于魁北克蒙特利尔以北的Sainte-Anne-Des-Lacs市。 这些显示了在营养和固体去除方面提高地表水质的潜力。因此，提出的下一步是在试点测试中测试湖中的过滤器，以检查影响磷和其他成分去除效率在现实条件下的因素，以进行将来的扩大和实施。 该项目与土工布制造商（Titan Environmental Coluonment）和当地社区合作，并将导致潜在的解决方案，而无需化学添加化学物质以恢复富营养化的湖泊。