Efficiency of an Ultrafiltration Process for the Depollution of Pretreated Olive Mill Wastewater
The depollution of constructed wetland-pretreated olive mill wastewater (OMW) using a membrane filtration system was experimentally studied. Dead-end filtration (DEF) was employed to evaluate suitable MF/UF membranes and select the appropriate molecular weight cut-off for optimal OMW treatment. Remo...
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MDPI AG
2025-02-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/15/3/67 |
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| author | Mohammed Zine Noureddine Touach El Mostapha Lotfi Philippe Moulin |
| author_facet | Mohammed Zine Noureddine Touach El Mostapha Lotfi Philippe Moulin |
| author_sort | Mohammed Zine |
| collection | DOAJ |
| description | The depollution of constructed wetland-pretreated olive mill wastewater (OMW) using a membrane filtration system was experimentally studied. Dead-end filtration (DEF) was employed to evaluate suitable MF/UF membranes and select the appropriate molecular weight cut-off for optimal OMW treatment. Removal efficiencies for COD (chemical oxygen demand) and TOC (total organic carbon) using DEF reached maximum values of 88.14% and 11.17%, respectively. Adsorption of raw and pretreated OMW on granular activated carbon was also carried out for a comparative study against DEF and pretreatment. The semi-industrial-scale experiments were conducted using commercial ceramic ultrafiltration (UF) membranes (150 and 50 kDa) in cross-flow filtration (CFF) mode at a permeate flux around 200 L h<sup>−1</sup> m<sup>−2</sup> and a trans-membrane pressure (TMP) of 3.5–3.8 bars. This post-treatment had a significant impact on COD removal efficiency from pretreated OMW, reaching 78.5%. The coupled process proposed in this study achieved removal efficiencies of 97%, 97%, and 99.9% of COD, TOC, and turbidity, respectively. |
| format | Article |
| id | doaj-art-b41dce71237e4992be322d95b9d1ae7d |
| institution | DOAJ |
| issn | 2077-0375 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | MDPI AG |
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| series | Membranes |
| spelling | doaj-art-b41dce71237e4992be322d95b9d1ae7d2025-08-20T02:42:22ZengMDPI AGMembranes2077-03752025-02-011536710.3390/membranes15030067Efficiency of an Ultrafiltration Process for the Depollution of Pretreated Olive Mill WastewaterMohammed Zine0Noureddine Touach1El Mostapha Lotfi2Philippe Moulin3Laboratory of Spectroscopy, Molecular Modeling, Materials, Nanomaterials, Water and Environment, Environmental Materials Team, ENSAM, Mohammed V University in Rabat, Avenue des Forces Armées Royales, Rabat B.P. 6207, MoroccoLaboratory of Spectroscopy, Molecular Modeling, Materials, Nanomaterials, Water and Environment, Environmental Materials Team, ENSAM, Mohammed V University in Rabat, Avenue des Forces Armées Royales, Rabat B.P. 6207, MoroccoLaboratory of Spectroscopy, Molecular Modeling, Materials, Nanomaterials, Water and Environment, Environmental Materials Team, ENSAM, Mohammed V University in Rabat, Avenue des Forces Armées Royales, Rabat B.P. 6207, MoroccoAix Marseille Univ., CNRS, Centrale Méditerranée, M2P2 UMR 7340, Équipe Procédés Membranaires (EPM), Europole de l’Arbois, BP80, Pavillon Laennec, Hall C, 13545 Aix en Provence, CEDEX, FranceThe depollution of constructed wetland-pretreated olive mill wastewater (OMW) using a membrane filtration system was experimentally studied. Dead-end filtration (DEF) was employed to evaluate suitable MF/UF membranes and select the appropriate molecular weight cut-off for optimal OMW treatment. Removal efficiencies for COD (chemical oxygen demand) and TOC (total organic carbon) using DEF reached maximum values of 88.14% and 11.17%, respectively. Adsorption of raw and pretreated OMW on granular activated carbon was also carried out for a comparative study against DEF and pretreatment. The semi-industrial-scale experiments were conducted using commercial ceramic ultrafiltration (UF) membranes (150 and 50 kDa) in cross-flow filtration (CFF) mode at a permeate flux around 200 L h<sup>−1</sup> m<sup>−2</sup> and a trans-membrane pressure (TMP) of 3.5–3.8 bars. This post-treatment had a significant impact on COD removal efficiency from pretreated OMW, reaching 78.5%. The coupled process proposed in this study achieved removal efficiencies of 97%, 97%, and 99.9% of COD, TOC, and turbidity, respectively.https://www.mdpi.com/2077-0375/15/3/67olive mill wastewaterultrafiltrationhybrid processMWCO effect |
| spellingShingle | Mohammed Zine Noureddine Touach El Mostapha Lotfi Philippe Moulin Efficiency of an Ultrafiltration Process for the Depollution of Pretreated Olive Mill Wastewater Membranes olive mill wastewater ultrafiltration hybrid process MWCO effect |
| title | Efficiency of an Ultrafiltration Process for the Depollution of Pretreated Olive Mill Wastewater |
| title_full | Efficiency of an Ultrafiltration Process for the Depollution of Pretreated Olive Mill Wastewater |
| title_fullStr | Efficiency of an Ultrafiltration Process for the Depollution of Pretreated Olive Mill Wastewater |
| title_full_unstemmed | Efficiency of an Ultrafiltration Process for the Depollution of Pretreated Olive Mill Wastewater |
| title_short | Efficiency of an Ultrafiltration Process for the Depollution of Pretreated Olive Mill Wastewater |
| title_sort | efficiency of an ultrafiltration process for the depollution of pretreated olive mill wastewater |
| topic | olive mill wastewater ultrafiltration hybrid process MWCO effect |
| url | https://www.mdpi.com/2077-0375/15/3/67 |
| work_keys_str_mv | AT mohammedzine efficiencyofanultrafiltrationprocessforthedepollutionofpretreatedolivemillwastewater AT noureddinetouach efficiencyofanultrafiltrationprocessforthedepollutionofpretreatedolivemillwastewater AT elmostaphalotfi efficiencyofanultrafiltrationprocessforthedepollutionofpretreatedolivemillwastewater AT philippemoulin efficiencyofanultrafiltrationprocessforthedepollutionofpretreatedolivemillwastewater |