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Adsorption of fluoride from aqueous solution by fly ash cenospheres modified with paper mill lime mud: Experimental and modeling
Note from Fluoride Action Network: “Since all methods [to remove fluoride] produce a sludge with very high concentration of fluoride that has to be disposed of, only water for drinking and cooking purposes should be treated, particularly in the developing countries.” Reference: Fluorosis (see Interventions), World Health Organization Highlights A low-cost fly ash cenospheres modified […]
International Water Treatment -
Fluoride removal by palm shell waste based powdered activated carbon vs. functionalized carbon with magnesium silicate: Implications for their application in water treatment.
Abstract In this study, palm shell activated carbon powder (PSAC) and magnesium silicate (MgSiO3) modified PSAC (MPSAC) were thoroughly investigated for fluoride (F–) adsorption. F– adsorption isotherms showed that PSAC and MPSAC over-performed some other reported F– adsorbents with adsorption capacities of 116 mg g-1 and 150 mg g-1, respectively. Interestingly, the MgSiO3 impregnated layer […]
International Water Treatment -
Evaluation the Feasibility of Short-Term Electrodialysis for Separating Naturally Occurring Fluoride from Instant Brick Tea Infusion
Abstract BACKGROUND: Removing excessive naturally occurring fluoride from tea and/or infusions is difficult because the process has low efficiency and causes secondary pollution. In this study, a novel electrodialysis (ED) technology was developed. We examined the effect of crucial parameters (electrolyte concentration, operation voltage, ED duration, and initial concentration of the tea infusion) on the […]
China International -
Fluoride network and circular economy as potential model for sustainable development – A review.
Highlights Industrial processes increase fluoride levels and transport in the environment. Various fluoride biological pathways increase the risk of toxicity exposure. Steering actors must be recognized to attain perpetual sustainable development. Circular economy, as a tool to sustainable development, must have same objectives. Abstract Fluorine is the most reactive elements among the halogen group and […]
International Incineration -
Cubical-Shaped Rods of Pectin-Hydroxyapatite Composite for Adsorption Studies of Fluoride by Statistical Method and Adsorption Experiments.
Note from Fluoride Action Network: “Since all methods [to remove fluoride] produce a sludge with very high concentration of fluoride that has to be disposed of, only water for drinking and cooking purposes should be treated, particularly in the developing countries.” Reference: Fluorosis (see Interventions), World Health Organization Abstract This research details the synthesis and […]
International Water Treatment -
Defluoridation of water through the transformation of octacalcium phosphate into fluorapatite.
Abstract The consumption of water with fluoride concentration higher than 1.5 mg/L (WHO recommended limit) is recognized to cause serious diseases, and fluoride removal from natural contaminated waters is a health priority for more than 260 million people worldwide. The octacalcium phosphate (OCP), a mineralogical precursor of bio-apatite, is here tested as a fluoride remover. […]
International Water Treatment -
Fluoride removal from water by electrocoagulation: Effect of the type of water and the experimental parameters
Highlights Fluoride ions can be removed efficiently from water by electrocoagulation. Lower aluminium amounts are required with hydrogencarbonate anions. Temperature, concentration and conductivity impact on the treatment performance. In any condition, more efficient treatment is obtained with pH lower than 7.5. Abstract Contamination of the ground water with fluoride is a great problem worldwide. Removal […]
International Water Treatment -
Simultaneous removal of fluoride and arsenic from well water by electrocoagulation
Highlights Electrocoagulation is a process able to treat and remove fluoride and arsenic simultaneously from drinking water. Critical factors in the electrocoagulation process for simultaneous removal are pH, current density and treatment time. Acidic pH is more favorable for fluoride removal Arsenic removal is less complex than fluoride removal, high removal efficiencies were reached without […]
International Water Treatment -
Synthesis of bone char from cattle bones and its application for fluoride removal from the contaminated water
Highlights Bone char is synthesized by thermal treatment of cattle bones at 350°C. The maximum adsorption capacity was found to be 10.56 mg g-1. The specific surface area was determined 79.34 m2 g-1. Abstract This study is focused on the synthesis of bone char (BC) and its application in adsorptive removal of fluoride from the […]
International Water Treatment -
Asml Holding N.V. offers krypton fluoride and argon fluoride light sources for processing wafers
Excerpt: ASML Holding N.V. develops, produces, markets, sells, and services advanced semiconductor equipment systems with a focus on lithography related systems primarily in the Netherlands, the United States, and Asia. The company has market cap of $96.09 billion. The firm offers TWINSCAN systems, which are equipped with i-line, krypton fluoride, and argon fluoride light sources […]
International Electronics Industry