Electrochemical oxidation of organic pollutants in low conductive solutions

Abstract

This mini-review supplies current opinion about the most recent works, which have been carried out toward the electrochemical treatment of organic compounds spike in low conductive solution. In particular, the first section is focused on the use of a solid polymer electrolyte in order to allow current flux with a low cell voltage even in a solution without supporting electrolyte. Meanwhile, the second section describes the microfluidic cells that are characterized by very small distances between electrodes (tens or few hundreds μm) that reduce the ohmic resistances and increase the mass transport of the pollutants to electrodes’ surfaces. • Development of electrochemical process to treat low conductive solution. • Introduction of solid polymer electrolyte sandwiched among electrodes. • Microfluidic cells operating with an extremely low electrode gap. • Both systems provide high pollutant removal from low conductive solution. • Further investigations are required to overcome the drawbacks of these new systems.