Removal of fluoride ions by batch electrodialysis

Fluoride removal by using a batch electrocoagulation reactor

Adsorption Isotherms on Fluoride Removal: Batch Techniques

The ability of cynodon dactylon based thermally activated carbon to remove fluoride from aqueous solution has been investigated. The batch adsorption studies were carried out at neutral pH as the functions of contact time, adsorbent dose, adsorbate concentration, temperature and effect of co-anions, which are commonly present in water. The rate of adsorption was rapid during initial 105 minutes...

Removal of boron, fluoride and nitrate by electrodialysis in the presence of organic matter

14 The removal of the trace inorganic contaminants boron (B(OH)4 ), fluoride (F ) and nitrate (NO3 ) 15 from synthetic aqueous solutions containing organic matter using electrodialysis was investigated. 16 The transport of the contaminants through the ion-exchange membranes was evaluated in relation 17 to hydrated ionic radius, whereby a positive correlation was found in absence of organic matt...

Zinc Ion Removal from Wastewater by Electrodialysis

This paper describes a robust design method for separation of zinc ions from a solution using a laboratory electrodialysis (ED) setup. An experimental investigation is presented to determine the optimum configuration of factors for the best performance. In order to optimize the performance, the factors which have the greatest influence have to be identified and their optimum values chosen. In t...

Removal of Ash: Potential Use of Electrodialysis

Within an electrodialysis unit, the solutions are separated by alternately arranged anion exchange membranes (permeable only for anions) and cation exchange membranes (permeable only for cations). The membranes are arranged parallel to one another to form an electrodialysis stack. When a potential is applied across the selectively permeable membrane stack, anions selectively move through the an...