Impact of different schemes for treating landfill leachate
Copyright © 2017 Elsevier Ltd. All rights reserved.
| Publié dans: | Waste management (New York, N.Y.). - 1999. - 71(2018) vom: 15. Jan., Seite 255-266 |
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| Auteur principal: | |
| Autres auteurs: | , , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2018
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| Accès à la collection: | Waste management (New York, N.Y.) |
| Sujets: | Journal Article Retracted Publication Evaporation Leachate Life cycle analysis Reverse osmosis Uncertainty Wastewater treatment plant Sewage Waste Water |
| Résumé: | Copyright © 2017 Elsevier Ltd. All rights reserved. Different technological schemes for treating the leachate generated by an existing landfill were compared in a life cycle perspective. On-site advanced processes based on reverse osmosis and evaporation were compared to conventional off-site co-treatment with civil sewage in wastewater treatment plant (WWTP). The inventories of the different scenarios were built by both direct observation of existing facilities and by retrieving data from the literature and similar equipment. Particular care was given for evaluating the energetic and chemical needs for operating the on-site advanced treatments. The evaporation system required 40 kW h/m3 of electricity and 18.5 kW h/m3 of heat, whereas reverse osmosis needed only 8.5 kW h/m3 of electricity. On the other hand the amount of liquid concentrate returned by the evaporation system was only about 0.03 m3/m3 instead of about 0.30 m3/m3 returned by reverse osmosis. The evaporation system also consumed the highest amount of chemicals. Life cycle analysis showed that the impact categories most affected by the different options were human toxicity, both non-cancer and cancer, together with freshwater ecotoxicity. The uncertainty analysis highlighted the major contribution associated with direct emissions from the processes. On the basis of mean values, the qualitative trends were substantially confirmed |
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| Description: | Date Completed 13.08.2018 Date Revised 11.07.2024 published: Print RetractionIn: Waste Manag. 2024 Sep 15;186:152. doi: 10.1016/j.wasman.2024.04.022. - PMID 38905904 Citation Status MEDLINE |
| ISSN: | 1879-2456 |
| DOI: | 10.1016/j.wasman.2017.10.046 |