EO provides a simple, viable and promising method for the remediation of sanitary landfill leachates. This electrochemical method allows high treatment efficiencies without the disadvantage of sludge production. Under appropriate experimental conditions, it CID 2011756 can remove most of the COD, almost all ammonia, and it also reduces significantly the color, without the accumulation of refractory organics.
Although all the electrochemical methods treated in this paper have high potential to efficiently treat sanitary landfill leachates, before a sustainable electrochemical process can be implemented at full-scale, further research needs to be developed regarding new and/or improved electrode materials, different electrode types and arrangements and more sophisticated reactor operational strategies, in order to reduce operational costs and to overcome some other identified drawbacks. With the same goal, integration of these methods with each other or with other treatment methods should also be more explored. Outstanding works have been developed in order to switch from standard landfill management mode to a more environmentally sustainable one, and one of the latest reports have also revealed the real possibility of using blended leachate as a fertigant for the re-vegetation of the walls of the closed landfills .