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Optimizing the treatment of landfill leachate by conventional Fenton and photo-Fenton processes.
Sci Total Environ. 2009 May 15; 407(11):3473-81.ST

Abstract

Landfill, a matured and economically appealing technology, is the ultimate approach for the management of municipal solid wastes. 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 Fe(2+) and photo-decarboxylation of ferric carboxylates. In this study, Fenton and photo-Fenton processes were 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 (approximately 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 process was 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 photo-assisted 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.

Authors+Show Affiliations

Departamento de Ingeniería Química, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain. dhermosilla@quim.ucm.esNo affiliation info availableNo affiliation info available

Pub Type(s)

Evaluation Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19278717

Citation

Hermosilla, Daphne, et al. "Optimizing the Treatment of Landfill Leachate By Conventional Fenton and photo-Fenton Processes." The Science of the Total Environment, vol. 407, no. 11, 2009, pp. 3473-81.
Hermosilla D, Cortijo M, Huang CP. Optimizing the treatment of landfill leachate by conventional Fenton and photo-Fenton processes. Sci Total Environ. 2009;407(11):3473-81.
Hermosilla, D., Cortijo, M., & Huang, C. P. (2009). Optimizing the treatment of landfill leachate by conventional Fenton and photo-Fenton processes. The Science of the Total Environment, 407(11), 3473-81. https://doi.org/10.1016/j.scitotenv.2009.02.009
Hermosilla D, Cortijo M, Huang CP. Optimizing the Treatment of Landfill Leachate By Conventional Fenton and photo-Fenton Processes. Sci Total Environ. 2009 May 15;407(11):3473-81. PubMed PMID: 19278717.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Optimizing the treatment of landfill leachate by conventional Fenton and photo-Fenton processes. AU - Hermosilla,Daphne, AU - Cortijo,Manuel, AU - Huang,Chin Pao, Y1 - 2009/03/10/ PY - 2008/11/04/received PY - 2009/02/03/revised PY - 2009/02/04/accepted PY - 2009/3/13/entrez PY - 2009/3/13/pubmed PY - 2009/9/26/medline SP - 3473 EP - 81 JF - The Science of the total environment JO - Sci Total Environ VL - 407 IS - 11 N2 - Landfill, a matured and economically appealing technology, is the ultimate approach for the management of municipal solid wastes. 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 Fe(2+) and photo-decarboxylation of ferric carboxylates. In this study, Fenton and photo-Fenton processes were 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 (approximately 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 process was 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 photo-assisted 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. SN - 1879-1026 UR - https://www.unboundmedicine.com/medline/citation/19278717/Optimizing_the_treatment_of_landfill_leachate_by_conventional_Fenton_and_photo_Fenton_processes_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0048-9697(09)00156-9 DB - PRIME DP - Unbound Medicine ER -