Abstract

Batch experiment was carried out to determine the effectiveness of the novel composite defluorinating agent NEWDEF® for fluoride removal from aqueous solution. The results showed that the maximum adsorption capacities for F- were 4.09mg·g-1. Kinetics data obtained for the adsorption process fitted the Lagergren First-order equation. The adsorption kinetics and isotherm were found well fitted by Langmuir isotherm models and a pseudo-second-order kinetic, showing F- removal belonged to monolayer adsorption process. The reaction of F- adsorption from aqueous solutions by NEWDEF® was an endothermic process. Micro-columnand home-used equipment defluoridation test indicated that NEWDEF® can be perfectly suitable defluorinating agent in F- removal for drinking water in small towns.

Details

Title
Study on Fluoride Removal from Aqueous Solutions by a Novel Defluoridation Adsorbent NEWDEF®
Author
Zhu, Chi 1 ; Wang, Shui 2 ; An-juan Cai 2 ; Wang, Dong 2 ; Wei-Xia, Wang 2 ; Jia-ming, Zhu 3 ; Nong, Kai 3 

 Jiangsu Provincial Academy of Environmental Science, Jiangsu provincial key laboratory of environmental engineering, Nanjing 210036, China.; State Key Laboratory of Lake and Environmental Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China. 
 Jiangsu Provincial Academy of Environmental Science, Jiangsu provincial key laboratory of environmental engineering, Nanjing 210036, China. 
 China School of Chemistry Life Science, Nanjing University Jinling College, Nanjing 210089, China. 
Publication year
2017
Publication date
Jan 2017
Publisher
IOP Publishing
ISSN
17551307
e-ISSN
17551315
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2560221948
Copyright
© 2017. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.