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Descripción
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| Landfill, a matured and economically appealing technology, is the ultimate approach for the management of municipal solidwastes. However, the inevitable generation of leachate from landfill requires further treatment. Among the various leachate treatment technologies available, advanced oxidation processes (AOPs) are among powerful methods to deal with the refractory organic constituents, and the Fenton reagent has evolved as one promising AOPs for the treatment of leachates. Particularly, the combination of UV-radiation with Fenton's reagent has been reported to be a method that allows both the photo-regeneration of Fe2+ and photodecarboxylation of ferric carboxylates. In this study, Fenton and photo-Fenton processeswere fine tuned for the treatment of leachates from the Colmenar Viejo (Madrid, Spain) Landfill. Results showed that it is possible to define a set of conditions under which the same COD and TOC removals (¿70%) could be achieved with both the conventional and photo-Fenton processes. But Fenton process generated an important quantity of iron sludge, which will require further disposal, when performed under optimal COD removal conditions. Furthermore conventional Fenton processwas able to achieve slightly over an 80% COD removal from a ¿young¿ leachate, while for ¿old¿ and ¿mixed¿ leachates was close to a 70%. The main advantage showed by the photoassisted Fenton treatment of landfill leachate was that it consumed 32 times less iron and produced 25 times less sludge volume yielding the same COD removal results than a conventional Fenton treatment. | |
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Internacional
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Si |
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JCR del ISI
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Si |
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Título de la revista
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SCIENCE OF THE TOTAL ENVIRONMENT |
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ISSN
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0048-9697 |
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Factor de impacto JCR
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2,579 |
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Información de impacto
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Volumen
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407 |
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DOI
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Número de revista
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11 |
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Desde la página
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3473 |
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Hasta la página
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3481 |
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Mes
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MAYO |
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Ranking
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