Suspend your queasiness for a moment and imagine digging down into a landfill. Tossing aside food wrappers and cookware and carpets and the millions of other items we throw away every week, you eventually hit bottom. And what you find there isn카지노 게임 컬렉션t a smelly, sloppy mixture of earth and garbage, but a heavy-duty plastic liner that카지노 게임 컬렉션s meant to prevent harmful chemicals from all that trash leaching into the ground.
The good news is that these liners usually do their job. The bad news is that when they don카지노 게임 컬렉션t, the result can be catastrophic. One recent example: In 2021, a tear in a liner at a mining facility in Florida led to 800 million litres of wastewater being dumped into Tampa Bay.
So, how do we prevent failures?
Queen카지노 게임 컬렉션s Civil Engineering Professor Dr. Kerry Rowe has made a career of trying to answer that question, as well as improving liners and other waste contamination systems. He was recently awarded the inaugural Natural Sciences and Engineering Research Council of Canada (NSERC) Donna Strickland Prize for Societal Impact of Natural Sciences and Engineering Research to continue pursuing that work.
The $250,000 grant will go toward a relatively new focus for Dr. Rowe and his research team: liners that can contain a particularly harmful group of man-made chemicals called per- and polyfluoroalkyl substances (PFAS). 카지노 게임 컬렉션This is the new challenge,카지노 게임 컬렉션 says Dr. Rowe. 카지노 게임 컬렉션You can카지노 게임 컬렉션t incinerate it, and it카지노 게임 컬렉션s very hard to treat.카지노 게임 컬렉션
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Close-up of a landfill liner.
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Close-up of wires and gauges for the landfill liner.
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Close-up of components for the landfill liner.
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Close-up of wires and gauges for the landfill liner.
Used in everything from beauty products to dental floss to firefighting foam, PFAS are found in the water, air, and soil. They카지노 게임 컬렉션re also resistant to typical environmental breakdown and can be toxic. Some researchers have found correlations between high PFAS exposure and kidney cancer, testicular cancer, ulcerative colitis, thyroid disease, pregnancy-induced hypertension, and even high cholesterol.
Dr. Rowe and his team have been looking at PFAS since 2016 and have found that most liners do a good job of preventing PFAS from diffusing through the material.
카지노 게임 컬렉션That카지노 게임 컬렉션s the good news; we didn카지노 게임 컬렉션t know that two years ago,카지노 게임 컬렉션 says Dr. Rowe. 카지노 게임 컬렉션But then we have to ask ourselves, 카지노 게임 컬렉션Well, how much can leak out?카지노 게임 컬렉션 And that카지노 게임 컬렉션s the next question that we카지노 게임 컬렉션re looking at 카지노 게임 컬렉션 how can we minimize leakage out of new and existing systems?카지노 게임 컬렉션
To find out, he카지노 게임 컬렉션s enlisted the help of three industry partners, as well as five grad students at Queen카지노 게임 컬렉션s, two at the 카지노게임사이트 of Sydney, and one at Monash 카지노게임사이트 in Melbourne, Australia. Some of them are looking at leakage, but others continue to study diffusion. A few are also trying to figure out how PFAS interact with the liners and affect their long-term performance.
The final results probably won카지노 게임 컬렉션t come for a couple of years, but it카지노 게임 컬렉션s another fascinating challenge in a career that카지노 게임 컬렉션s lasted more than 40 years for Dr. Rowe. 카지노 게임 컬렉션Every time there카지노 게임 컬렉션s a new challenge, I카지노 게임 컬렉션m attracted to solving it,카지노 게임 컬렉션 he says. 카지노 게임 컬렉션Last century we weren카지노 게임 컬렉션t even thinking about PFAS. And now as we embark on a whole new adventure with green energy, it카지노 게임 컬렉션s also going to create some environmental problems that we카지노 게임 컬렉션ll need to address.카지노 게임 컬렉션
