Adsorption of fluoride on gas concrete materials

In this study, gas concrete waste materials were used to remove F − from aqueous solutions. The influence of pH, temperature, agitation rate and gas concrete dosage on F − removal was investigated by conducting a series of batch adsorption experiments. In addition, the yield and mechanisms of F − re...

Full description

Saved in:
Bibliographic Details
Published in:Journal of hazardous materials 2005-01, Vol.117 (2), p.227-233
Main Author: Oguz, Ensar
Format: Article
Language:English
Subjects:
Adsorption
Air Pollutants - chemistry
Applied sciences
Exact sciences and technology
Fluoride
Fluorides - isolation & purification
Gas concrete
Hydrogen-Ion Concentration
Industrial Waste - prevention & control
Kinetics
Pollution
SEM
Temperature
Water Pollutants, Chemical - isolation & purification
Water Pollution, Chemical - prevention & control
Water treatment and pollution
XRD
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this study, gas concrete waste materials were used to remove F − from aqueous solutions. The influence of pH, temperature, agitation rate and gas concrete dosage on F − removal was investigated by conducting a series of batch adsorption experiments. In addition, the yield and mechanisms of F − removal were explained on the basis of the results of X-ray spectroscopy and images of scanning electron microscopy (SEM) of the particles before and after adsorption. The values of zeta potential and BET-N 2 specific surface area of gas concrete particles were defined. In this study, F − removal in excess of 96% was obtained. It was thought that the removal of fluoride by gas concrete took place both adsorption and precipitation of Al 3+ and Ca 2+ salts (F −). As a result of this study, it was concluded that wastes of gas concrete were an efficient adsorbent for the removal of F −.
ISSN:0304-3894
1873-3336
DOI:10.1016/j.jhazmat.2004.09.020