Recovery of iron after Fenton-like secondary treatment of olive mill wastewater by nano-filtration and low-pressure reverse osmosis membranes
In this work, the performances of novel nano-filtration (NF) and low-pressure reverse osmosis (RO) polymeric membranes were examined with the aim of recovering the iron used as catalyst in former secondary treatment based on the Fenton-like advanced oxidation of olive mill wastewater (OMW). Results...
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| Format: | Article |
| Language: | English |
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Consejo Superior de Investigaciones Científicas
2016-09-01
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| Series: | Grasas y Aceites |
| Subjects: | |
| Online Access: | http://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1613 |
| _version_ | 1819297850295582720 |
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| author | J. M. Ochando-Pulido M. D. Víctor-Ortega A. Martínez-Férez |
| author_facet | J. M. Ochando-Pulido M. D. Víctor-Ortega A. Martínez-Férez |
| author_sort | J. M. Ochando-Pulido |
| collection | DOAJ |
| description | In this work, the performances of novel nano-filtration (NF) and low-pressure reverse osmosis (RO) polymeric membranes were examined with the aim of recovering the iron used as catalyst in former secondary treatment based on the Fenton-like advanced oxidation of olive mill wastewater (OMW). Results highlight that both membranes exhibit a good performance towards the rejection of iron (99.1% for the NF membrane vs. 100% for the low-pressure RO membrane) in the secondary-treated OMW effluent, thus permitting the recovery of iron in the concentrate stream in order to recycle it back into the oxidation reactor to reduce catalyst consumption. Finally, the permeate streams could be re-used for irrigation. Major productivity was observed by the selected NF membrane, about 47.4 L/hm2 upon 9 bar, whereas 30.9 L/hm2 could be yielded with the RO membrane under an operating pressure of 8 bar. Moreover, a sensibly lower fouling index was measured on the NF membrane (0.0072 in contrast with 0.065), which ensures major steady-state performance on this membrane and a longer service lifetime. This also results in lower required membrane area and membrane plant over dimension (4 modules in case of RO operation whereas only 2 modules for NF). |
| first_indexed | 2024-12-24T05:20:33Z |
| format | Article |
| id | doaj.art-0bd03c03284b4f67be12f56f2a538e22 |
| institution | Directory Open Access Journal |
| issn | 0017-3495 1988-4214 |
| language | English |
| last_indexed | 2024-12-24T05:20:33Z |
| publishDate | 2016-09-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Grasas y Aceites |
| spelling | doaj.art-0bd03c03284b4f67be12f56f2a538e222022-12-21T17:13:28ZengConsejo Superior de Investigaciones CientíficasGrasas y Aceites0017-34951988-42142016-09-01673e147e14710.3989/gya.10011531580Recovery of iron after Fenton-like secondary treatment of olive mill wastewater by nano-filtration and low-pressure reverse osmosis membranesJ. M. Ochando-Pulido0M. D. Víctor-Ortega1A. Martínez-Férez2Chemical Engineering Department, University of GranadaChemical Engineering Department, University of GranadaChemical Engineering Department, University of GranadaIn this work, the performances of novel nano-filtration (NF) and low-pressure reverse osmosis (RO) polymeric membranes were examined with the aim of recovering the iron used as catalyst in former secondary treatment based on the Fenton-like advanced oxidation of olive mill wastewater (OMW). Results highlight that both membranes exhibit a good performance towards the rejection of iron (99.1% for the NF membrane vs. 100% for the low-pressure RO membrane) in the secondary-treated OMW effluent, thus permitting the recovery of iron in the concentrate stream in order to recycle it back into the oxidation reactor to reduce catalyst consumption. Finally, the permeate streams could be re-used for irrigation. Major productivity was observed by the selected NF membrane, about 47.4 L/hm2 upon 9 bar, whereas 30.9 L/hm2 could be yielded with the RO membrane under an operating pressure of 8 bar. Moreover, a sensibly lower fouling index was measured on the NF membrane (0.0072 in contrast with 0.065), which ensures major steady-state performance on this membrane and a longer service lifetime. This also results in lower required membrane area and membrane plant over dimension (4 modules in case of RO operation whereas only 2 modules for NF).http://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1613iron recoverynano-filtrationolive mill wastewaterreverse osmosiswastewater treatment |
| spellingShingle | J. M. Ochando-Pulido M. D. Víctor-Ortega A. Martínez-Férez Recovery of iron after Fenton-like secondary treatment of olive mill wastewater by nano-filtration and low-pressure reverse osmosis membranes Grasas y Aceites iron recovery nano-filtration olive mill wastewater reverse osmosis wastewater treatment |
| title | Recovery of iron after Fenton-like secondary treatment of olive mill wastewater by nano-filtration and low-pressure reverse osmosis membranes |
| title_full | Recovery of iron after Fenton-like secondary treatment of olive mill wastewater by nano-filtration and low-pressure reverse osmosis membranes |
| title_fullStr | Recovery of iron after Fenton-like secondary treatment of olive mill wastewater by nano-filtration and low-pressure reverse osmosis membranes |
| title_full_unstemmed | Recovery of iron after Fenton-like secondary treatment of olive mill wastewater by nano-filtration and low-pressure reverse osmosis membranes |
| title_short | Recovery of iron after Fenton-like secondary treatment of olive mill wastewater by nano-filtration and low-pressure reverse osmosis membranes |
| title_sort | recovery of iron after fenton like secondary treatment of olive mill wastewater by nano filtration and low pressure reverse osmosis membranes |
| topic | iron recovery nano-filtration olive mill wastewater reverse osmosis wastewater treatment |
| url | http://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1613 |
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