latest news: Water Treatment
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Fluoride contamination, health problems and remediation methods in Asian groundwater: A comprehensive review.
Highlights The status of fluoride contamination in groundwater of Asian countries is reviewed. India, Pakistan and China are critically affected by fluoride contamination. Dental fluorosis is major adverse effect due to fluoride contamination in water. Various defluoridation techniques have been discussed. More research on fluoride decontamination is suggested. Abstract In low concentration, fluoride is considered […]
International Water Treatment -
Bone char as a green sorbent for removing health threatening fluoride from drinking water
Highlights The review addresses the process of bone char production for water defluoridation. Health issues resulted from drinking water with high fluoride are highlighted. The mechanisms involved in fluoride removal on bone char were presented. Surface modification for enhancing bone char efficiency were discussed. Some existing and conceptual designs for bone char as an adsorbent […]
International Water Treatment -
Fluoride removal from natural volcanic underground water by an electrocoagulation process: Parametric and cost evaluations.
Highlights Use of electrocoagulation technique for the remediation of fluoride in groundwater. Performance intensification ways and cost evaluation are comprehensively discussed. Operating conditions have been optimized in batch and continuous-flow regimes. Percentage of fluoride removal varied between 68.9 and 84.7%. Final fluoride concentration below the legal limit of 1.5 mg/L in all cases. Abstract Excessive […]
Spain Volcanoes Water Treatment -
Fluoride occurrence in groundwater systems at global scale and status of defluoridation – State of the art
Highlights Random scattering of information about fluoride and defluoridation techniques. The exposure routes and occurrences of fluoride. Fluoride dissipation in the groundwater and soil were reviewed. The advantages and disadvantages of various defluoridation techniques. Optimum conditions for fluoride adsorption of different adsorbents. Abstract Occurrence of elevated concentrations of fluoride in the drinking water supply in […]
International Water Treatment -
A review of bismuth-based sorptive materials for the removal of major contaminants from drinking water.
Abstract In recent years, bismuth has gained attention of many researchers because of its sorptive properties. Sorptive properties of bismuth compounds are used for removal of ionic contaminants from aqueous solution. In this paper, an attempt is made to review the recent developments in the area of contaminant removal from aqueous solutions using bismuth-based media. […]
International Water Treatment -
Indigenous microbes induced fluoride release from aquifer sediments.
Abstract Release of fluoride from Quaternary sediments produces F-contaminated groundwater which threatens the health of millions of people worldwide. Despite the mechanisms of fluoride release from sediments are documented by numerous studies, it remains poorly understood that whether indigenous microbes participate in or not for the formation of F-rich groundwater by releasing fluoride from aquifer […]
International Water Treatment -
The Best Water Filters for Fluoride
Article at a Glance: How to know if your water contains fluoride >> Why a countertop distiller is the best filter for fluoride >> The best under-counter reverse osmosis filter for fluoride, and why >> The best whole-house filter for fluoride (it’s not reverse osmosis) >> How to filter fluoride from shower and bath water […]
United States, National USA Water Treatment -
A critical review on geochemical and geological aspects of fluoride belts, fluorosis and natural materials and other sources for alternatives to fluoride exposure
Highlights Higher fluoride in drinking water is slow poison with irrecoverable consequences. The paper discusses the natural factors behind occurrences of high fluorosis globally. The Global Fluoride Belts are geographically connected and geologically similar with natural factors. In situ process of fluoride removal techniques, their removal capacity, advantages and disadvantages are discussed. Abstract Fluorosis is […]
International Water Treatment -
Removal of fluoride from groundwater using natural clay (kaolinite): Optimization of adsorption conditions
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 article focuses on the application […]
Algeria Water Treatment -
Efficient utilisation of flue gas desulfurization gypsum as a potential material for fluoride removal
Highlights An attractive material for fluoride removal from synthetic solution is presented. FGD gypsum exhibits satisfactory performance on calcium release and fluoride removal. FGD gypsum removes fluoride through combining with calcium to form calcium fluoride. By-product reuse improves the sustainable development of resource and environment. Abstract This study introduces the use of a waste by-product […]
International Water Treatment
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