Electrochemistry: as cause and cure in water pollution—an overview

Effect of the anode materials on the efficiency of the electro-Fenton process for the mineralization of the antibiotic sulfamethazine

“…The development of chemical industries and the increasing use of chemicals in many areas have led over the years to the accumulation of large variety of chemical pollutants in the environment [1], [2], [3], [4], [5] and [6]. Most of these chemicals are very stable and/or hardly degradable in the environment; they can migrate over very long distances from the place of their emission.…”

“…Anode material (M) also plays a significant role on the process efficiency [30], [33] and [34]; its contribution becomes particularly important with high O2 evolution overpotential materials [35], [6], [7], [8] and [9]. Indeed, the use of such anodes allow to generate supplementary hydroxyl radical (M( • OH)) on their surface, from the oxidation of water, according to reaction (5a) [30], [40], [41] and [42] which in turn enhances the degradation of organics (reaction 5b).…”

Electroplating for Decorative Applications: Recent Trends in Research and Development

“…Rinsing, cleaning, and stripping are the main sources of wastewater, which has to be collected and treated for reuse in the production line and for external discharge. Wastewater generated by the electroplating processes are highly toxic due to the presence of cyanurate compounds, and heavy metals such as Cu, Zn, As, Be, Cd, Pb, Cr(VI), and Ni [105,106]. Specifically for wearing and decorative applications, another aspect to be considered is the degree of metal release in a particular object.…”

Electrochemical Advanced Oxidation Processes (EAOP) to degrade per- and polyfluoroalkyl substances (PFASs)

“…[20,24,29] Consequently, EAOP has drawn increasing attention, which can be evidenced by the number of publications shown in Figure 1, and witnessed by recently published reviews [20,23,24,26,[30][31][32][33][34].…”

“…Note, there are several options in terms of electrochemical remediation [31], such as electrocoagulation [73], electrokinetics [21], electrodeposition [29] and geooxidation [74,75], etc. Among these, the geooxidation process showed promise in breaking down some POPs from soil.…”