Capacitive deionization (CDI) for desalination and water treatment — past, present and future (a review)

Three-dimensional electrochemical process for wastewater treatment: A general review

Electrochemical degradation of aqueous solution of Amaranth azo dye on ACF under potentiostatic model

A short review of activated carbon assisted electrosorption process: an overview, current stage and future prospects.

Removal of copper ions from wastewater by adsorption/electrosorption on modified activated carbon cloths

The potential of electroadsorption/desorption on activated carbon for waste water treatment of industrial effluents is studied. Adsorption isotherms of hydrophobic differently charged model substances on activated carbon were measured in order to obtain specific information about the influence of the charge (+1,−1 and 0) on the adsorbability of comparable, aromatic species and the influence of the bed potential on the adsorption equilibria. In all these cases the adsorption equilibria show a dependence on applied potential in electrolyte of approximately 1m ionic strength. With electrosorption from aqueous solution, a fivefold enhancement of the concentration in one potential controlled adsorption/desorption cycle is achievable. The use of the solvent methanol instead of water for desorption allows for a concentration enhancement by a factor of hundred in the desorptive step. The adsorption capacity of the activated carbon changes only slightly with cycle number. Two cell designs for the performance of potential controlled adsorption/desorption cycles on the large scale are discussed.

A. Schafer

Papers

Fundamentals of electrosorption on activated carbon for wastewater treatment of industrial effluents