Abstract

Raw leachate and a biological effluent coming from the same raw leachate that has been biologically treatedin a new type of biological reactor, were electrochemically treated. A batch-type electrolytic cell usingtwo patented DSA electrodes was employed. Raw leachate, treated for 240 min at a current density of200 mA/cm2, falls within the sewer discharge limits set by Italian legislation for the COD. Instead, effluentobtained through combined biological and electro-oxidation treatment (by using 83 mA/cm2 and133 mA/cm2) has a COD such that could be discharged into the sewer and, after applying a current densityequal to 200 mA/cm2 after 240 min, has a COD value such that can even discharged into receivingwater bodies. The electrochemical oxidation carried out is only effective on nitrogen ammonia throughindirect electro-oxidation; it is not effective on other nitrogen-containing species. In any case, whereammonia is present (i.e., in the raw leachate), 82% is removed by the end of the test (i.e., after240 min of electrolysis) at 200 mA/cm2. Also, for the raw leachate, chloramine formation is most markedat low current densities. Nevertheless, the toxicity does not appear to be affected; in fact, decreaseregardless of the applied current density.

Autore Pugliese

• Di Iaconi Claudio , Mascolo Giuseppe , De Sanctis Marco

Tutti gli autori

• Del Moro G.; Prieto-Rodríguez L.; De Sanctis M.; Di Iaconi C.; Malato S.; Mascolo G.

Titolo volume/Rivista

Chemical engineering journal

Anno di pubblicazione

2016

ISSN

1385-8947

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

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Numero di citazioni Scopus

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Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

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