Fenton's pre-treatment of mature landfill leachate (Articolo in rivista)

Type
Label
  • Fenton's pre-treatment of mature landfill leachate (Articolo in rivista) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.chemosphere.2003.09.015 (literal)
Alternative label
  • LOPEZ A., PAGANO M., VOLPE A., DI PINTO A.C. (2004)
    Fenton's pre-treatment of mature landfill leachate
    in Chemosphere
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • LOPEZ A., PAGANO M., VOLPE A., DI PINTO A.C. (literal)
Pagina inizio
  • 1005 (literal)
Pagina fine
  • 1010 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://biblioproxy.cnr.it:2063/science/article/pii/S0045653503009287 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 54 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 7 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • PAGNO MICHELE-Consiglio Nazionale delle Ricerche, Istituto di Ricerca Sulle Acque, Reparto di Chimica e Tecnologia delle Acque, Via Francesco De Blasio, 5, 70123 Bari, Italy LOPEZ ANTONIO-Consiglio Nazionale delle Ricerche, Istituto di Ricerca Sulle Acque, Reparto di Chimica e Tecnologia delle Acque, Via Francesco De Blasio, 5, 70123 Bari, Italy VOLPE ANGELA-Consiglio Nazionale delle Ricerche, Istituto di Ricerca Sulle Acque, Reparto di Chimica e Tecnologia delle Acque, Via Francesco De Blasio, 5, 70123 Bari, Italy DI PINTO APPIO CLAUDIO-Consiglio Nazionale delle Ricerche, Istituto di Ricerca Sulle Acque, Reparto di Chimica e Tecnologia delle Acque, Via Reno, 1, 00198 Roma, Italy (literal)
Titolo
  • Fenton's pre-treatment of mature landfill leachate (literal)
Abstract
  • The aim of this study was to check the effectiveness of the Fenton's reagent (Fe2+ + H2O2 + H+) for the pre-treatment of a municipal landfill leachate with the objective of improving its overall biodegradability, evaluated in terms of BOD5/COD ratio, up to a value compatible with biological treatment. The leachate came from a municipal sanitary landfill located in southern Italy and the average values of its main parameters were: pH = 8.2; COD = 10 540 mg l(-1); BOD5=2300 mg l(-1); TOC=3900 mg l(-1); NH4-N=5210 mg l(-1); conductivity = 45350 muS cm(-1); alkalinity= 21470 mg l(-1) CaCO3. The effect of initial pH value on the pre-treatment effectiveness was evaluated by titrating the amount of acidic by-products formed. The extent of leachate oxidation was monitored and controlled by both pH and redox potential measurements. The best operational conditions for achieving the desired goal (i.e., BOD5/COD greater than or equal to 0.5) resulted: Fe2+ = 275 mg l(-1); H2O2 = 3300 mg l(-1); initial pH = 3; reaction time = 2 h. At the end of the Fenton's pretreatment, in order to permit a subsequent biological treatment, residual ferric ions were removed increasing the pH up to 8.5 by adding 3 g l(-1) of Ca(OH)(2) and 3 mg l(-1) of a cationic polyelectrolyte, the latter as an aid to coagulation. This final step also resulted in a further modest removal of residual COD due to co-precipitation phenomena. (literal)
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