Landfill wall revegetation combined with leachate recirculation: A convenient procedure for management of closed landfills
| Autor: | C. Di Iaconi, Gennaro Brunetti, Giuseppe Mascolo, Emanuele Barca, G. Del Moro, D. Cassano |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Fertigation
Irrigation Health Toxicology and Mutagenesis Lactuca Lepidium sativum Landfill leachate Soil Atriplex halimus Soil Pollutants Environmental Chemistry Leachate Revegetation biology Lactuca sativa Environmental engineering General Medicine Plants biology.organism_classification Pollution Refuse Disposal Waste Disposal Facilities Italy Germination Environmental science Fertirrigation Closed landfill Water Pollutants Chemical |
| Zdroj: | Environmetal science and pollution research international (Internet) 21 (2014): 9366–9375. doi:10.1007/s11356-014-2878-8 info:cnr-pdr/source/autori:Del Moro G.; Barca E.; Cassano D.; Di Iaconi C.; Mascolo G.; Brunetti G./titolo:Landfill wall revegetation combined with leachate recirculation: A convenient procedure for management of closed landfills/doi:10.1007%2Fs11356-014-2878-8/rivista:Environmetal science and pollution research international (Internet)/anno:2014/pagina_da:9366/pagina_a:9375/intervallo_pagine:9366–9375/volume:21 |
| Popis: | There is a need for a reliable sustainable option to effectively manage the landfill leachate generation. This study presents a simple procedure for the revegetation of the walls of closed landfills, employing the leachate as a fertirrigant. 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. The results demonstrated the real possibility of using blended leachate as a fertigant for the revegetation of the walls of closed landfills. In particular, the plants maintained good health when leachate was blended at concentrations of lower than 25 and 5 %, respectively for A. halimus and Lepidium sativum. Irrigation tests showed good resistance of the plants, even at dosages of 112 and 133.5 mm m(-2), at maximum concentrations of 25 and 5 %, respectively, for A. halimus and Lepidium sativum. The analysis of the total chlorophyll content and of aerial parts dried weight confirmed the results reported above. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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