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Removal of fluoride by aluminum impregnated coconut fiber from synthetic fluoride solution and natural water
Abstract Aluminum impregnated coconut fiber ash (AICFA) was used for removal of fluoride from synthetic fluoride solution. The AICFA showed high specific area and strong affinity toward fluoride. Synthesized AICFA was characterized by pHZPC, FTIR, SEM and XRD studies. Adsorption kinetics indicated that the adsorption equilibrium was reached within 60 min and the adsorption process followed […]International Water Treatment
Distribution and Removal of Fluoride Ions in the Drinking Waters in the Algerian South (Ouargla as a Showcase)
Abstract In certain countries, the Algerian South in particular, where the scarcity of drinking water resources of good quality has constrained the local populations to consume the underground waters that are rich in fluoride. Fluoride constitutes an essential component for the human body in moderate rates, between 0.5 to 1.5 mg/l of the consumed water. Nonetheless […]Algeria Water Treatment
Fluoride removal from water by adsorption—A review
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 Fluoride removal from water using ‘adsorption’ […]International Water Treatment
Removal of excess fluoride ions from Saharan brackish water by adsorption on natural materials
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 Water supply for people in the […]Algeria Water Treatment
Factors influencing natural occurrence of fluoride-rich groundwaters: a case study in the southeastern part of the Korean Peninsula.
Abstract Factors regulating the occurrence of fluoride in groundwater were investigated using natural isotope tracers and geochemical data in the southeastern part of Korea where about 10% of the total public water-supply wells (n=422) inspected in this study had fluoride levels exceeding the drinking water limit of Korea (1.5 mg/l). The F-rich public wells are […]South Korea Water Treatment
Removal of fluoride from semiconductor wastewater by electrocoagulation-flotation.
Abstract This work employs an anodic surfactant, sodium dodecyl sulfate (SDS), to improve the flotation performance of the electrocoagulation-flotation (ECF) process to treated fluoride containing semiconductor wastewater following calcium precipitation. The dissolved fluoride ions and CaF(2) particles in the wastewater after calcium precipitation were effectively removed in the ECF process simultaneously. The dosage of SDS […]International Water Treatment
Low-cost defluoridation of water using broken bricks
Abstract: A low cost domestic defluoridator has been developed by the National Water Supply & Drainage Board of Sri Lanka to remove excess fluoride in drinking water to avoid endemic Fluorosis. Broken pieces of freshly burnt bricks are used as filter media in these units. A kinetic model for fluoride uptake in the filter with […]Sri Lanka Bricks - Mud blocks Water Treatment
Removal of fluoride from fluoride contaminated industrial waste water by electrolysis.
Abstract Wastewater containing fluoride are generally treated with lime or calcium salt supplemented with aluminium salts. Wastewater generated from different industries does not always behave in the same way due to the presence of interfering contaminants. A number of techniques have been developed and studied for the removal of excessive fluoride. Most of these are […]International Water Treatment
Removal of zinc and fluoride ions from industrial waste water plants around Cairo.
Read the 1st of 2 pages of this paper online at https://link.springer.com/article/10.1007%2Fs00128-002-0186-3 Print PDFEgypt Water Treatment
Fluoride removal from water by Hydrilla verticillata (l.f.) royle and its toxic effects.
Read the first page of this paper online at https://link.springer.com/article/10.1007%2Fs0012800177 Print PDFInternational Water Treatment