Integration of US/Fe(2+) and photo-Fenton in sequencing for degradation of landfill leachate
The landfill leachate treated by sonication in presence of Fe(2+) (US/Fe(2+)) and then by photo-Fenton achieved the highest total organic carbon (TOC) removal efficiency among the screened processes. The lower initial pH, dosage of Fe(2+) and initial concentration of leachate were helpful in raising...
| Publié dans: | Water science and technology : a journal of the International Association on Water Pollution Research. - 1986. - 73(2016), 2 vom: 23., Seite 260-6 |
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| Auteur principal: | |
| Autres auteurs: | , , , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2016
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| Accès à la collection: | Water science and technology : a journal of the International Association on Water Pollution Research |
| Sujets: | Evaluation Study Journal Article Research Support, Non-U.S. Gov't Fenton's reagent Water Pollutants, Chemical Hydrogen Peroxide BBX060AN9V Iron E1UOL152H7 |
| Résumé: | The landfill leachate treated by sonication in presence of Fe(2+) (US/Fe(2+)) and then by photo-Fenton achieved the highest total organic carbon (TOC) removal efficiency among the screened processes. The lower initial pH, dosage of Fe(2+) and initial concentration of leachate were helpful in raising TOC removal efficiency of leachate by US/Fe(2+). The optimal conditions for the US-photo-Fenton process were as follows: initial pH at 3.0, [H2O2]/[TOC0] at 2, [H2O2]/[Fe(2+)] at 5 and initial concentration of landfill leachate at 600 mg/L. The removal efficiency of TOC, chemical oxygen demand (COD) and 5-day biochemical oxygen demand (BOD5) were 68.3, 79.6 and 58.2%, while the BOD5/COD rose from 0.20 to 0.43 at optimum condition. Based on gas chromatography-mass spectrometry (GC-MS) results, 36 of a total of 56 pollutants were completely degraded by US-photo-Fenton treatment |
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| Description: | Date Completed 05.05.2016 Date Revised 10.12.2019 published: Print Citation Status MEDLINE |
| ISSN: | 0273-1223 |
| DOI: | 10.2166/wst.2015.487 |