Geotextile filtration to improve surface water quality

富营养化已被确定为加拿大地表水质量，特别是湖泊水质的主要风险之一。 当湖泊富营养化时，生物多样性减少，浊度和有机物增加，缺氧条件发展。藻华的增加带来了不良的美观、味道和气味问题，对游泳者和宠物是一种危害，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织造土工布在减少营养物质和悬浮固体以改善湖泊水质方面的有效性，特别是对于将地表水用于饮用水和娱乐目的的小社区。本计画将是最近使用非织造土工布作为过滤介质进行的现场实验的延续。这些湖泊位于魁北克蒙特利尔北部的圣特-安妮-德-Lacs市。 这些技术在去除营养物和固体方面显示出改善地表水质量的潜力。因此，建议的下一步是在中试试验中测试湖泊中的过滤器，以检查现实条件下影响磷和其他组分去除效率的因素，以便将来扩大规模和实施。 该项目是与一家土工织物制造商（Titan Environmental Containment）和当地社区合作开展的，将为富营养化湖泊的恢复提供一种不添加化学品的潜在解决方案。

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.