scholarly journals Changes in fluoride removal ability of chicken bone char with changes in calcination time

2020 ◽  
Vol 2 (2) ◽  
pp. 83-91
Author(s):  
Masanori Kikuchi ◽  
Yuki Arioka ◽  
Masamoto Tafu ◽  
Mitsuteru Irie
Keyword(s):  
Fluoride Removal ◽  
Bone Char ◽  
Calcination Time ◽  
Chicken Bone

scholarly journals Fluoride Contamination in Drinking Water in Sri Lanka and Fluoride Removal by Using Chicken Bone Char

2012 ◽  
Vol 68 (7) ◽  
pp. III_517-III_523 ◽  
Author(s):  
Ayuri MOTOYAMA ◽  
Tomonori KAWAKAMI ◽  
S. K. WERAGODA ◽  
Koji OKUGAWA ◽  
Yuka SERIKAWA ◽  
...  
Keyword(s):  
Drinking Water ◽  
Sri Lanka ◽  
Fluoride Removal ◽  
Bone Char ◽  
Fluoride Contamination ◽  
Chicken Bone

scholarly journals Chemical Reactions of Fluoride Removal by Chicken Bone Char

2014 ◽  
Vol 70 (7) ◽  
pp. III_527-III_534
Author(s):  
Hikaru MIYAZAKI ◽  
Shiori NAGASAWA ◽  
Ayuri MOTOYAMA ◽  
Tomonori KAWAKAMI
Keyword(s):  
Chemical Reactions ◽  
Fluoride Removal ◽  
Bone Char ◽  
Chicken Bone

Fluoride removal from drinking water in Senegal: laboratory and pilot experimentation on bone char-based treatment

2011 ◽  
Vol 1 (4) ◽  
pp. 213-223 ◽  
Author(s):  
Sabrina Sorlini ◽  
Daniela Palazzini ◽  
Carlo Collivignarelli
Keyword(s):  
Drinking Water ◽  
Dental Fluorosis ◽  
Low Cost ◽  
Fluoride Concentration ◽  
Pilot Scale ◽  
Appropriate Technology ◽  
World Health ◽  
Fluoride Removal ◽  
Process Conditions ◽  
Bone Char

In Senegal there are four regions where fluoride concentration in drinking water exceeds the World Health Organization guide value of 1.5 mg/L. This generates permanent damages to the teeth (dental fluorosis) and to the skeleton (skeletal fluorosis). A safe, efficient, simple and low-cost effective defluoridation technique is not available yet and needs to be developed in order to prevent the occurrence of fluorosis. This experimental research was carried out in order to define an appropriate technology for fluoride removal from groundwater in Senegal. Batch tests and filtration tests at laboratory and pilot scale were carried out using animal bone char as adsorbent material for fluoride removal. Possible influencing parameters, such as specific ions in Senegalese drinking water, were investigated and the best process conditions were defined for the application in Senegal. The results attest to the efficacy of bone char in removing fluoride from Senegalese water: at pilot scale the mean specific adsorption was 2.7 mg F−/g of bone char, corresponding to a total treated volume of 4,000 L and a filter life of nearly three months.

Bone Char from an Invasive Aquatic Specie as a Green Adsorbent for Fluoride Removal in Drinking Water

2021 ◽  
Vol 232 (9) ◽  
Author(s):  
Sergio Armando Cruz-Briano ◽  
Nahum Andrés Medellín-Castillo ◽  
Arturo Torres-Dosal ◽  
Roberto Leyva-Ramos ◽  
Juan Carlos Moreno-Piraján ◽  
...  
Keyword(s):  
Drinking Water ◽  
Fluoride Removal ◽  
Bone Char ◽  
Green Adsorbent

scholarly journals Repeated Heat Regeneration of Bone Char for Sustainable Use in Fluoride Removal from Drinking Water

Healthcare ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 143 ◽  
Author(s):  
H. Herath ◽  
Tomonori Kawakami ◽  
Masamoto Tafu
Keyword(s):  
Adsorption Capacity ◽  
Low Cost ◽  
Sustainable Use ◽  
Chemical Precipitation ◽  
Fluoride Removal ◽  
Bone Char ◽  
Fluoride Adsorption ◽  
Heat Regeneration ◽  
Recovery Percentage ◽  
Regeneration Of Bone

The effectiveness of regenerated chicken bone char (CBC) in fluoride removal was investigated in the present study. Heat treatment was studied as the regeneration method. Results revealed that the CBC regenerated at 673 K yielded the highest fluoride adsorption capacity, hence, 673 K was the best regenerating temperature. The study continued up to five regeneration cycles at the best regenerating temperature; 673 K. The CBC accounted to 16.1 mg F/g CBC as the total adsorption capacity after five regeneration cycles. The recovery percentage of CBC reduced from 79% at the first regeneration to 4% after five regeneration cycles. The hydroxyapatite structure of CBC was not changed during the fluoride adsorption by five regeneration cycles. The ion exchange incorporated with the chemical precipitation occurred during the fluoride adsorption. The repeated regeneration of CBC is possible and it could be used as a low cost defluoridation technique to minimize the wastage of bone char.

Bone char with antibacterial properties for fluoride removal: Preparation, characterization and water treatment

2017 ◽  
Vol 201 ◽  
pp. 277-285 ◽  
Author(s):  
Lorena Delgadillo-Velasco ◽  
Virginia Hernández-Montoya ◽  
Francisco J. Cervantes ◽  
Miguel A. Montes-Morán ◽  
Diana Lira-Berlanga
Keyword(s):  
Water Treatment ◽  
Antibacterial Properties ◽  
Fluoride Removal ◽  
Bone Char
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