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 […]
News Archive
Welcome to the Fluoride Action Network News Archive. The FAN News Archive serves as an historical repository for fluoride news stories, positive or negative. Since FAN catalogs all news stories on fluoride, our news section remains a reliable database of all published fluoride news.
Our news database is categorized by country, state/province, and industry. This collection of articles is constantly being updated with the most recent global news on fluoride-related issues and events.
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 […]
The Influence of Fertilizers on the Behavior of Fluoride Fractions in the Alkaline Soil
Highlights Availability and toxicity of fluoride to plants and animal depends on its existing form Fertilizers accelerate fluoride release into the soil solution Di-ammonium phosphate and manure enhance water soluble fluoride through direct input Urea accelerates fluoride release through altering soil’s pH and elemental composition Abstract It has been established that fluoride bioavailability in the […]
Thermal behaviors, combustion mechanisms, evolved gasses, and ash analysis of spent potlining for a hazardous waste management
Highlights Thermal degradation behaviors of spent potlining (SPL) were quantified. An exothermic reaction dominated the overall reaction process. Fluoride volatilization rate in the flue gasses was 2.24%. Kinetic triplets pointed to the best-fit reaction model as the n-th order mechanism. The mineral deposition mechanisms and ash slagging tendency were predicted. Abstract An unavoidable but reusable […]
Removal of fluoride from water using aluminum hydroxide-loaded zeolite synthesized from coal fly ash
Highlights Aluminum hydroxide coated zeolite (AHZ) was synthesized from coal fly ash. The maximum adsorption capacity of fluoride by AHZ reached 18.12 mg/g. Optimal fluoride adsorption was within the pH range of 5.5?6.5. Defluoridation by AHZ was fast and did not affect substantially by common anions. The mechanism of fluoride adsorption was the exchange with […]
Aluminium compound deconstructs sulfur hexafluoride in minutes
Researchers in the UK have developed a fast and mild method for deconstructing SF6. The method converts the potent greenhouse gas into stable aluminium(iii) fluoride and sulfide compounds, which can serve as nucleophilic sources of F? and S2- in further reactions to make valuable organic products. Source: © Shutterstock Sulfur hexafluoride circuit breakers protect electrical […]
Fluoride Sources, Toxicity and Fluorosis Management Techniques – A Brief Review.
Highlights Overexposure to fluoride via drinking water causes several health effects including fluorosis Endemic fluorosis is still persisted in several countries even with advancement in research Most of fluorosis management techniques suggested in the past have come with their own drawbacks Defluoridation techniques based on aluminium materials pose serious health risks to the public A […]
GO-CeO2 nanohybrid for ultra-rapid fluoride removal from drinking water
Highlights Graphene oxide-ceria (GO-CeO2) nanohybrid exhibited ultra-rapid kinetics (<1 min) for F– removal. Maximum F– adsorption capacity was 8.61 mg/g at pH 6.5 and 16.07 mg/g at pH 4.0. Both electrostatic interaction and surface complexation participated in the F? removal process. The nanohybrid has the potential for use in high throughput defluoridation systems. Abstract The […]
Preparation of MgO porous nanoplates modified pumice and its adsorption performance on fluoride removal
Highlights MgO porous nanoplates modified pumice is developed through a facile method. The loading amount of the MgO porous nanoplates can be conveniently adjust. The adsorption capacity for fluoride is larger than 37.9 mg/g. The MgO@pumice can efficiently removal fluoride at a wide pH range of 2–10. The column test showed that 324 bed volumes […]
A spore-based portable kit for on-site detection of fluoride ions
Highlights A spore-based portable kit was fabricated for visual and point-of-care testing of F–. The F– detection kit was successfully applied in surface waters and groundwater. The kit showed rapid, low-cost, eco-friendly, and ease of operation and storage. F– binding at near to the T2 Cu inhibited the reduction of O2 in CotA-laccase. Abstract The […]