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Integration of catalytic wet peroxidation and membrane distillation processes for olive mill wastewater treatment and water recovery
dc.contributor.author | Esteves, Bruno M. | |
dc.contributor.author | Morales Torres, Sergio | |
dc.contributor.author | Maldonado Hodar, Francisco José | |
dc.date.accessioned | 2022-11-30T13:31:43Z | |
dc.date.available | 2022-11-30T13:31:43Z | |
dc.date.issued | 2022-06-16 | |
dc.identifier.citation | Bruno M. Esteves... [et al.]. Integration of catalytic wet peroxidation and membrane distillation processes for olive mill wastewater treatment and water recovery, Chemical Engineering Journal, Volume 448, 2022, 137586, ISSN 1385-8947, [https://doi.org/10.1016/j.cej.2022.137586] | es_ES |
dc.identifier.uri | https://hdl.handle.net/10481/78213 | |
dc.description.abstract | The degradation of organic matter present in olive mill wastewater (OMW) and the recovery of water were studied by the integration of catalytic wet peroxidation (CWPO) and direct contact membrane distillation (DCMD) for the first time. The oxidation step was performed in a fixed–bed reactor (FBR) working in continuous mode (pH0 = 4.0 ± 0.2, 60 ◦C, Q = 0.75 mL/min, [H2O2]/[COD]feed = 2.3 ± 0.1 g H2O2/g O2). Samples of OMW diluted by 5– and 7.5–fold were used (OMW–5× and OMW–7.5×, respectively), corresponding to inlet chemical oxygen demand (COD) values of 3562 ± 68 and 2335 ± 54 mg/L, total phenolic content (TPh) of 177 ± 17 and 143 ± 7 mg GAeq/L, and total organic carbon (TOC) of 1258 ± 63 and 842 ± 45 mg/L, respectively. The FBR was loaded with 2.0 g of a Fe–activated carbon derived–catalyst, prepared by using olive stones as the precursor, in line with a circular economy model approach. The catalyst was selected based on the activity and stability towards polyphenolic synthetic solutions shown in previous works of the team, while actual OMW samples were used in this work. CWPO–treated samples of OMW allowed the operation of the DCMD unit at higher fluxes than with the analogous untreated ones, also showing higher rejections of organic matter from the feed solution upon DCMD, highlighting the beneficial effect of this novel configuration. Using a pre-treated sample of OMW–7.5× as feed solution (Q = 100 mL/min, Tpermeate ≈ 18 ◦C, Tfeed ≈ 66 ◦C), the produced permeate water stream presented several parameters well–below the legislated thresholds required for direct discharge for crops irrigation, including total suspended solids (TSS < 10 mg/L), TPh (<0.01 mg GAeq/L), biochemical oxygen demand (BOD5 < 40 mg/L), and dissolved Fe (<0.06 mg/L). Moreover, the resulting concentrated OMW–retentate streams could be recirculated to the FBR and maintain the same removal efficiencies obtained previously, despite the increased initial organic loadings of the retentate after DCMD. | es_ES |
dc.description.sponsorship | Portuguese Foundation for Science and Technology LA/P/0045/2020 UIDB/00511/2020 UIDP/00511/2020 | es_ES |
dc.description.sponsorship | European Regional Development Funds (ERDF) through North Portugal Regional Operational Programme (NORTE 2020) NORTE-01-0145-FEDER000069 | es_ES |
dc.description.sponsorship | NORTE 2020 under the PORTUGAL 2020 Partnership Agreement through ERDF NORTE-01-0145-FEDER000069 | es_ES |
dc.description.sponsorship | MCIN/AEI/FEDER "Una manera de hacer Europa" RTI2018-099224B-I00 | es_ES |
dc.description.sponsorship | Portuguese Foundation for Science and Technology BaseUIDB/50020/2020 UIDP/50020/2020 | es_ES |
dc.description.sponsorship | Portuguese Foundation for Science and Technology | es_ES |
dc.description.sponsorship | European Commission SFRH/BD/129235/2017 | es_ES |
dc.description.sponsorship | National and the European Social Funds through the Human Capital Operational Programme (POCH) MCIN/AEI RYC-2019026634I | es_ES |
dc.description.sponsorship | European Social Found (FSE) "El FSE invierte en tu futuro" RYC-2019026634I | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Fenton | es_ES |
dc.subject | Heterogeneous | es_ES |
dc.subject | Catalyst | es_ES |
dc.subject | DCMD | es_ES |
dc.subject | Fixed-bed reactor | es_ES |
dc.subject | OMW | es_ES |
dc.title | Integration of catalytic wet peroxidation and membrane distillation processes for olive mill wastewater treatment and water recovery | es_ES |
dc.type | journal article | es_ES |
dc.rights.accessRights | open access | es_ES |
dc.identifier.doi | 10.1016/j.cej.2022.137586 | |
dc.type.hasVersion | VoR | es_ES |