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Highly efficient fluoride removal from water using 2D metal-organic frameworks MIL-53(Al) with rich Al and O adsorptive centers
Highlights 2D MIL-53(Al) was prepared by using the solvothermal method. 2D MIL-53(Al) was exposed to enhance the adsorption of fluoride. 2D MIL-53(Al) had good adsorptive performance at a wide range of pH. DFT calculation and experiments were investigated for removing fluoride. Abstract In this study, metal-organic framework MIL-53(Al) was synthesized and studied to understand the […]
International Water Treatment -
Interaction-based ion selectivity exhibited by self-assembled, cross-linked zwitterionic copolymer membranes
Significance The separation of ions is challenging yet crucial for providing access to safe water resources as well as recovering valuable ions from water and wastewater. Yet, membranes rarely exhibit selectivity between ions of similar charge and size. We demonstrate that membranes, prepared by a fully scalable method that uses self-assembling zwitterionic copolymers, exhibit exceptional […]
International Water Treatment -
Not just groundwater, fluoride has poisoned agricultural soil, crops in Bengal
Farmers in Bankura and Purulia rely on groundwater, heavily contaminated with flouride, to cultivate crops West Bengal has been grappling with groundwater contamination for decades. About 12 per cent of the population in eight of the state’s 23 districts is impacted by water contaminated by fluoride. The contamination is higher in western parts of the […]
India Agriculture -
University of Calgary students urge ‘Yes’ vote on fluoridation in fall election
Plebiscite on adding fluoride to prevent tooth decay coincides with municipal vote A student-run advocacy group, Fluoride: Pay it Forward, is urging students to vote for reinstating fluoridation in the Calgary municipal election. (Helen Pike/CBC) Some University of Calgary students are urging other students to vote in favour of restoring fluoride in the city’s drinking water in […]
Canada, Alberta -
70th Human Study Links Fluoride to Babies’ Neurological Damage, Funded by NIH
NEW YORK, Sept. 13, 2021 /PRNewswire/ — Fluoride from foods and beverages consumed during pregnancy is associated with lower cognitive neurodevelopment in boy babies, even when fluoride is ingested at recommended levels, report researchers Cantoral et al. in Neurotoxicology (online August 2021) and funded by the US National Institutes of Health, reports New York State Coalition […]
United States, National USA -
Groundwater fluoride concentrations in the watershed sedimentary basin of Quetta Valley, Pakistan
Abstract Litho-geochemical characteristics of low and high fluoride (F–) groundwater along with hydrological processes were investigated to delineate its genesis and enrichment mechanism in a watershed sedimentary basin. In this study, groundwater F– concentration ranged from 0 to 20 mg/L with a mean and standard deviation of 2.8 and ± 3.7 mg/L, respectively. Out of […]
Pakistan -
Effective fluoride removal from brackish groundwaters by flow-electrode capacitive deionization (FCDI) under a continuous-flow mode
Highlights Utilizing FCDI to treat fluoride-contaminated brackish groundwater is quite effective. SCC was the most advantageous among the three operational modes of SCC, SC and ICC. F– was preferentially removed compared to Cl– with a high ion selectivity achievable. Steady-state effluent F– and Cl– concentrations versus current are greatly different. Abstract Herein, we demonstrated the […]
International Water Treatment -
New Filtering Method Promises Safer Drinking Water, Improved Industrial Production
Synthetic polymer membranes mimic the highly selective properties of biological cell membranes A team of scientists at the Tufts University School of Engineering has developed a new filtering technology inspired by biology that could help curb a drinking water-related disease that affects tens of millions of people worldwide and potentially improve environmental remediation, industrial and […]
United States, National USA Water Treatment -
Insights into the mechanism of fluoride adsorption over different crystal phase alumina surfaces
Abstract Activated alumina is the most common adsorbent for purifying fluoride in water, however, little is known so far about the adsorption mechanisms and comparison of adsorption behaviors for F on different crystal phase alumina surfaces, which seriously obstacles the development of high-performance sorbents. Herein, employing the density functional theory approach, we have studied F […]
International Water Treatment -
Community Water Fluoridation by Juilet Guichan
Note from Fluoride Action Network: The author, Juliet Guichon, is highly driven advocate for fluoridation in Canada who doesn’t let facts get in the way of her mission. She incorrectly states: “Fluoridation is a normal practice around the world…” Yet, 97% of Europe does not fluoridate. (EC) There is fluoride in all fresh water. At […]