http://www.cnr.it/ontology/cnr/individuo/prodotto/ID42356
NITROGEN RECOVERY FROM A STABILIZED MUNICIPAL LANDFILL LEACHATE (Articolo in rivista)
- Type
- Label
- NITROGEN RECOVERY FROM A STABILIZED MUNICIPAL LANDFILL LEACHATE (Articolo in rivista) (literal)
- Anno
- 2010-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.biortech.2009.10.013 (literal)
- Alternative label
DI IACONI C., PAGANO M., RAMADORI R., LOPEZ A. (2010)
NITROGEN RECOVERY FROM A STABILIZED MUNICIPAL LANDFILL LEACHATE
in Bioresource technology
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- DI IACONI C., PAGANO M., RAMADORI R., LOPEZ A. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- ISTITUTO DI RICERCA SULLE ACQUE (literal)
- Titolo
- NITROGEN RECOVERY FROM A STABILIZED MUNICIPAL LANDFILL LEACHATE (literal)
- Abstract
- The present paper reports the results of an investigation aimed at evaluating the effectiveness of magnesium
ammonium phosphate precipitation (MAP), commonly called struvite, for removing ammonia from
a mature municipal landfill leachate. MAP precipitation was carried out at laboratory scale by adding
phosphoric acid and magnesium oxide as external sources of phosphorus and magnesium, respectively,
and regulating the pH at 9.0. The effect of Mg:NH4:PO3 ratio was studied. Due to the low solubility of
MgO, a low ammonia removal efficiency (i.e. 67%), with a rather high residual concentration, was
obtained when the stoichiometric molar ratio was applied. However, by doubling the amount of magnesium
oxide (i.e. by using a molar ratio of 2:1:1), ammonia removal efficiency increased up to 95% with a
residual concentration compatible with a successive biological treatment. The struvite produced in the
present study showed a composition close to the theoretical one. Furthermore, the precipitate was characterized
by a heavy metal content much lower than that of typical raw soil, excluding any concern about
heavy metal contamination in the case of its use as a fertilizer. The economic analysis of the process
showed that ammonia can be removed at a cost of 9.6 EUR/kg NH4-Nremoved. This value can be greatly
reduced, however, if the value of the struvite produced is considered. (literal)
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