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UBC的开云体育要一倍流水新水处理方法彻底消除了“永久化学物质”
开云体育要一倍流水UBC的工程师开发了一种新的水处理方法,可以安全、有效地去除饮用水中的“永久化学物质”。“想想Brita过滤器,但比它好一千倍,”UBC化学和生物工程教授Madjid Mohseni博士说,他开发了这开云体育要一倍流水项技术。什么是PFAS ?为什么它不好?永久化学物质,正式名称为PFAS(全氟烷基和多氟烷基物质),是一大类使某些产品不粘或耐污的物质。目前有超过4700种PFAS在使用,主要用于防雨器、不粘锅具、防渍剂和消防泡沫。开云体育拳击研究表明,这些化学物质与一系列健康问题有关,包括荷尔蒙紊乱、心血管疾病、发育迟缓和癌症。如何从水中去除PFAS ?为了从饮用水中去除PFAS, Mohseni博士和他的团队设计了一种独特的吸附材料,能够捕获和保留供水系统中存在的所有PFAS。然后使用特殊的电化学和光化学技术来破坏PFAS, Mohseni实验室也开发了这种技术,并在最近发表在Chemosphere上的一篇论文中进行了部分描述。Mohseni博士解释说,虽然目前市场上有一些处理方法,如广泛用于家庭和工业的活性炭和离子交换系统,但它们不能有效地捕获所有不同的PFAS,或者需要更长的处理时间。 “Our adsorbing media captures up to 99 per cent of PFAS particles and can also be regenerated and potentially reused. This means that when we scrub off the PFAS from these materials, we do not end up with more highly toxic solid waste that will be another major environmental challenge.” Where are PFAS found in Canada? He explained that while PFAS are no longer manufactured in Canada, they are still incorporated in many consumer products and can then leach into the environment. For example, when we apply stain-resistant or repellent sprays/materials, wash PFAS-treated raingear, or use certain foams to put down fires, the chemicals end up in our waterways. Or when we use PFAS-containing cosmetics and sunscreens, the chemicals could find their way into the body. For most people, exposure is through food and consumer products, but they can also be exposed from drinking water – particularly if they live in areas with contaminated water sources. What's next? Dr. Mohseni, whose research group also focuses on developing water solutions for rural, remote and Indigenous communities, noted: “Our adsorbing media are particularly beneficial for people living in smaller communities who lack resources to implement the most advanced and expensive solutions that could capture PFAS. These can also be used in the form of decentralized and in-home water treatments.” The UBC team is preparing to pilot the new technology at a number of locations in B.C. starting this month. “The results we obtain from these real-world field studies will allow us to further optimize the technology and have it ready as products that municipalities, industry and individuals can use to eliminate PFAS in their water,” said Dr. Mohseni.
开云体育要一倍流水开云体育网页版官方网站下载UBC应用科学和泰克宣布400万美元用于矿山尾矿研究和教育开云体育拳击
开云体育要一倍流水开云体育网页版官方网站下载UBC应用科学和泰克公司宣布投资400万美元设立一个新教授职位,专注于提高尾矿管理的安全性和可持续性。
2023年3月6日
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