Experimental models for defluoridation.
The effect of some parameters such as the flow rate, initial solute concentration and column bed depth on fluoride removal by fishbone charcoal in a fixed bed column and continuous flow operation was investigated. The useful (or effective) treated effluent volume (corresponding to the desired breakthrough concentration of 1.0 mg/L of fluoride, in this study) is found to be a function of the flow rate, initial solute concentration and column bed depth. The useful treated effluent volume decreased with an increase in the flow rate and initial fluoride concentration but it increased with the column bed depth. Empirical relationships have been developed to predict the stated useful treated effluent volume for the known values of flow rate, column bed depth and initial fluoride concentration for the observed test conditions. The relationships evolved manifest high correlation coefficients.
Devendras
D
Bhargava
D J
DJ
Killedar
D000327:Adsorption; D002606:Charcoal; D005459:Fluorides / Q000302:isolation & purification*; D008956:Models, Chemical
D002606:Charcoal; D005459:Fluorides