| Title | Reusing landfill leachate within the framework of a proper management of municipal landfills |
| Abstract | The possibility of reusing leachate substances for agronomical purposes might be of interest, especially in arid areas when used in addition to the leachate water content. This study presents a simple procedure for the revegetation of the walls of closed landfills, reusing the leachate as a fertigant. The results demonstrated the real possibility of employing blended leachate as a fertigant for the revegetation of the walls of closed landfills. The native plants Lepidium sativum, Lactuca sativa and Atriplex halimus, which suit the local climate, were chosen for this study in Southern Italy. The methodology was structured into three phases: (i) early-stage toxicity assessment phase (apical root length and germination tests), (ii) adult plant resistance assessment phase and (iii) soil properties verification phase. The rationale of the proposed approach was first to look at the distinctive qualities and the potential toxicity in landfill leachates for fertigation purposes. Afterwards, through specific tests, the plants used were ranked in terms of resistance to the aqueous solution that contained leachate. Finally, after long-term irrigation, any possible worsening of soil properties was evaluated. In particular, the plants maintained good health when leachate was blended at concentrations of lower than 25% and 5%, respectively, for Atriplex halimus and Lepidium sativum. Irrigation tests showed good resistance of the plants, even at dosages of 112 and 133.5 mm/m2, at maximum concentrations of 25% and 5%, respectively, for Atriplex halimus and Lepidium sativum. The analysis of the total chlorophyll content and of aerial parts dried weight confirmed the results reported above. ? 2016 Springer International Publishing Switzerland. |
| Source | The Handbook of Environmental Chemistry 44, pp. 239–256 |
| Keywords | Atriplex halimusClosed landfill; Fertigation; Lactuca sativa; Landfill leachate; Lepidium sativum |
| Journal | The Handbook of Environmental Chemistry |
| Editor | , , |
| Year | 2016 |
| Type | Articolo in rivista |
| DOI | 10.1007/698-2014-325 |
| Authors | Del Moro, G. and Pastore, C. and Barca, E. and Di Iaconi, C. and Mascolo, G. and Brunetti, G. and Uricchio, V. |
| Text | 397365 2016 10.1007/698 2014 325 Scopus 2 s2.0 84956898496 Atriplex halimus Closed landfill; Fertigation; Lactuca sativa; Landfill leachate; Lepidium sativum Reusing landfill leachate within the framework of a proper management of municipal landfills Del Moro, G. and Pastore, C. and Barca, E. and Di Iaconi, C. and Mascolo, G. and Brunetti, G. and Uricchio, V. Istituto di Ricerca Sulle Acque, Consiglio Nazionale Delle Ricerche, Viale F. De Blasio 5, Bari, 70132, Italy; Di.S.S.P.A. Dipartimento di Scienze Suolo, Della Pianta e Degli Alimenti, Universit Degli Studi di Bari, Via Amendola 165/A, Bari, 70126, Italy The possibility of reusing leachate substances for agronomical purposes might be of interest, especially in arid areas when used in addition to the leachate water content. This study presents a simple procedure for the revegetation of the walls of closed landfills, reusing the leachate as a fertigant. The results demonstrated the real possibility of employing blended leachate as a fertigant for the revegetation of the walls of closed landfills. The native plants Lepidium sativum, Lactuca sativa and Atriplex halimus, which suit the local climate, were chosen for this study in Southern Italy. The methodology was structured into three phases i early stage toxicity assessment phase apical root length and germination tests , ii adult plant resistance assessment phase and iii soil properties verification phase. The rationale of the proposed approach was first to look at the distinctive qualities and the potential toxicity in landfill leachates for fertigation purposes. Afterwards, through specific tests, the plants used were ranked in terms of resistance to the aqueous solution that contained leachate. Finally, after long term irrigation, any possible worsening of soil properties was evaluated. In particular, the plants maintained good health when leachate was blended at concentrations of lower than 25% and 5%, respectively, for Atriplex halimus and Lepidium sativum. Irrigation tests showed good resistance of the plants, even at dosages of 112 and 133.5 mm/m2, at maximum concentrations of 25% and 5%, respectively, for Atriplex halimus and Lepidium sativum. The analysis of the total chlorophyll content and of aerial parts dried weight confirmed the results reported above. 2016 Springer International Publishing Switzerland. 44 Published version https //www.scopus.com/inward/record.uri eid=2 s2.0 84956898496 doi=10.1007%2f698 2014 325 partnerID=40 md5=a23f7fa20bc4865f588d2885707aa9f2 cited By 1 Articolo in rivista 1867 979X The Handbook of Environmental Chemistry The Handbook of Environmental Chemistry claudio.diiaconi DI IACONI CLAUDIO emanuele.barca BARCA EMANUELE carlo.pastore PASTORE CARLO guido.delmoro DEL MORO GUIDO giuseppe.mascolo MASCOLO GIUSEPPE |
