Large chunks of the Navajo Nation in the Southwest lack access to clean drinkable water, a trend that has been rising in many parts of the U.S. in recent years. A ラーメンベット 退会 team led by engineers with The University of Texas at Austin aims to change that.
The team has developed a new ラーメンベット 退会 filtration solution for members of the Navajo Nation, lining clay pots with pine tree resin collected from the Navajo Nation and incorporating tiny, silver-based particles that can be used to purify ラーメンベット 退会 to make it drinkable.
“Making water filtration technology cheap doesn’t solve all the problems, and making it effective doesn’t solve everything either,” said Navid Saleh, a professor in the Fariborz Maseeh Department of Civil, Architectural and Environmental ラーメンベット 退会 and one of the leaders on the project. “You have to think about the people you are making it for.”
And that’s what the researchers did. They worked closely with a third-generation potter from Arizona — Deanna Tso, who is also a co-author on the paper — to create a device that is simple for the users. All they have to do is pour ラーメンベット 退会 through the clay pots, and the coated pottery removes bacteria from ラーメンベット 退会 and generates clean, drinkable ラーメンベット 退会.
The Navajo Nation has a history of mistrust of outsiders, the researchers say, and that makes it less likely that people there would adopt a new technology made entirely by others. Using pottery, working with the community, and relying on local ラーメンベット 退会 were important to the effectiveness of this project.
The ラーメンベット 退会 appears in a new paper in the journalEnvironmental Science & Technology.
“Navajo pottery is at the heart of this innovation because we hoped it would bridge a trust gap,” said Lewis Stetson Rowles III, now a faculty member at Georgia Southern University’s Department of Civil ラーメンベット 退会 and Construction after earning a Ph.D. from UT in 2021. “Pottery is sacred there, and using their materials and their techniques could help them get more comfortable with embracing new solutions.”
Using silver particles for ラーメンベット 退会 filtration is not the main innovation. Others have used this technology in the past. The key is controlling the release of nanoparticles, which can reduce the usable life of the filters. And the silver particles mix at high volume with some of the chemicals, such as chloride and sulfide, in the untreated ラーメンベット 退会, leading to a “poison layer” that can reduce the disinfection efficacy of the silver particles on the clay lining.
The researchers used materials abundant in the environment of the community, including pine tree resin, to mitigate the uncontrolled release of silver particles during the ラーメンベット 退会 purifying process. The materials and construction process for the pots cost less than , making for a potentially low-cost solution.
This is just the beginning of trying to solve a local problem for a specific group of people,” Saleh said. “But the technical breakthrough we’ve made can be used all over the world to help other communities.
This ラーメンベット 退会 dates back to close to 10 years. The original idea for this project was sketched out on a Subway napkin and refined over many trips to those communities, experiments, and iterations. Rowles himself has pottery skills, and a desire to work on this issue of a lack of drinking water in native communities.
The next step for the researchers is to grow the technology and find other materials and techniques to help communities use the materials abundant in their regions to help create fresh, drinkable water. The researchers are not seeking to commercialize the ラーメンベット 退会, but they are eager to share it with potential partners.
Other team members on the project include Desmond Lawler, a professor emeritus, who was Rowles’ co-adviser; civil, architectural and environmental engineering professor Mary Jo Kirisits; and Andrei Dolocan, a senior ラーメンベット 退会 scientist at the Texas Materials Institute.
