The development of efficient water filtration systems is an important challenge for environmental engineering. Activated carbon is widely used for the adsorption of organic pollutants, such as pesticides, pharmaceutical by-products and volatile organic compounds. However, it is only a separation step and the regeneration processes of the adsorption material currently present some important drawbacks. A new electrochemical process for in-situ regeneration of activated carbon has been developed. Both adsorption and regeneration steps are performed in the same reactor. The objective of electrochemical regeneration is to recover the adsorption capacity of the adsorption material and to degrade organic pollutants. The technology was initially developed using activated carbon fibers, a breakthrough material allowing faster adsorption of organic pollutants. The technology is also applied for the regeneration of conventional activated carbon grains.
Water and wastewater treatment – Activated carbon regeneration - Fibers – Grains – Electrochemistry – Anodic oxidation - Degradation and mineralization of organic pollutants
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