نتایج جستجو برای: removal of fluoride

تعداد نتایج: 21173640  

Journal: :Journal of Humanities and Education Development 2023

Water is the most vital natural resource for survival of human being and environment on earth surface. But Fluoride contamination water has become a widespread serious problem all over world including India. Supplying right amount fluoride to drinking protects teeth from decay reduces risk cavities. Exposure beyond recommended level longer duration causes both dental skeletal fluorosis. Health ...

Journal: :Journal of environmental management 2009
Mohammad M Emamjomeh Muttucumaru Sivakumar

Long-term consumption of water containing excessive fluoride can lead to fluorosis of the teeth and bones. Electrocoagulation (EC) is an electrochemical technique, in which a variety of unwanted dissolved particles and suspended matter can be effectively removed from an aqueous solution by electrolysis. Continuous flow experiments with monopolar aluminium electrodes for fluoride removal were un...

2015
Arnaud Igor Ndé-Tchoupé Richard A. Crane Hezron T. Mwakabona Karoli N. Njau Maria Filomena Camões

Since the realization in the 1930s that elevated fluoride concentrations in drinking water can have detrimental effects on human health, new methods have been progressively developed in order to reduce fluoride to acceptable levels. In the developing world the necessity for filtration media that are both low-cost and sourced from locally available materials has resulted in the widespread use of...

Journal: :Journal of Water and Environment Technology 2015

Journal: :Journal of the Ceramic Society of Japan 2006

Journal: :Journal of Korean Society of Environmental Engineers 2013

2013
Qingrui Zhang Qing Du Tifeng Jiao Zhaoxiang Zhang Sufeng Wang Qina Sun Faming Gao

Fluoride pollution in waters has engulfed worldwide regions and an excess of fluoride intake always causes skeletal fluorosis. Herein, a novel hybrid nanomaterial ZrP-MPN was fabricated for fluoride retention by encapsulating nano-ZrP onto macroporous polystyrene materials modified with quaternary ammonium groups. The as-obtained materials exhibited favorable removal of fluoride ions from aqueo...

2010
Suresh K Nath Robin K Dutta

An examination of defluoridation by industrial grade limestone indicated that a combination of precipitation and adsorption of fluoride can be more effective for defluoridation of water. Pre-acidified fluoride water using two edible acids, viz., acetic acid (AA) and citric acid (CA) have been used for treatment by crushed limestone of diameter 3-4 mm to precipitate fluoride as CaF2 in addition ...

Journal: :Arabian Journal of Chemistry 2016

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