Recovery of iron after Fenton-like secondary treatment of olive mill wastewater by nano-filtration and low-pressure reverse osmosis membranes


  • J. M. Ochando-Pulido Chemical Engineering Department, University of Granada
  • M. D. Víctor-Ortega Chemical Engineering Department, University of Granada
  • A. Martínez-Férez Chemical Engineering Department, University of Granada



Iron recovery, Nano-filtration, Olive mill wastewater, Reverse osmosis, Wastewater treatment


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).


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Akar T, Tosun I, Kaynak Z, Ozkara E, Yeni O, Sahin E N, Akar S T. 2009. An attractive agro-industrial by-product in environmental cleanup: Dye biosorption potential of untreated olive pomace. J. Hazard. Mater. 166, 1217-1225. PMid:19153007

Akdemir EO, Ozer A. 2009. Investigation of two ultrafiltration membranes for treatment of olive oil mill wastewater. Desalination 249, 660-666.

Aktas ES, Imre S, Esroy L. 2001. Characterization and lime treatment of olive mill wastewater. Water Res. 35, 2336-2340.

Al-Malah K, Azzam MOJ, Abu-Lail NI. 2000. Olive mills effluent (OME) wastewater post-treatment using activated clay. Sep. Purif. Technol. 20, 225-234.

Annesini M, Gironi F. 1991. Olive oil mill effluent: ageing effects on evaporation behavior. Water Research, 25, 1157-1960.

APHA, AWWA, WPCF. 1992. Standard Methods for water and wastewater analysis. Díaz de Santos, p. 1816, ISBN: 84-7978-031-2, Madrid.

ASTM International D 4582 - 91, 2001. Standard Practice for Calculation and Adjustment of the Stiff and Davis Stability Index for Reverse Osmosis.

Beltrán J, Torregrosa J, García J, Domínguez JR. 2000. Ozone treatment of olive mill wastewater. Grasas Aceites 51, 32-46.

Baccar R, Bouzid J, Feki M, Montiel A. 2009. Preparation of activated carbon from Tunisian olive-waste cakes and its application for adsorption of heavy metal ions. J. Hazard. Mater. 162, 1522-1529. PMid:18653277

Borja R, Raposo F, Rincón B. 2006. Treatment technologies of liquid and solid wastes from two-phase olive oil mills. Grasas Aceites 57, 32-46.

Cegarra J, Paredes C, Roig A, Bernal MP, García D. 1996. Use of olive mill wastewater compost for crop production. Int. Biodet. Biodegrad. 38, 193-203.

Coskun T, Debik E, Demir N M. 2010. Treatment of olive mill wastewaters by nanofiltration and reverse osmosis membranes. Desalination 259, 65-70.

Ena A, Carlozzi P, Pushparaj B, Paperi R, Carnevale S, Sacchi A. 2007. Ability of the aquatic fern Azolla to remove chemical oxygen demand and polyphenols from olive mill wastewater. Grasas Aceites 58, 32-46.

Fari-as Iglesias M. 1998. Ósmosis inversa: fundamentos, tecnología y aplicaciones. Ed. McGraw-Hill.

Garcia-Castello E, Cassano A, Criscuoli A, Conidi C, Drioli E. 2010. Recovery and concentration of polyphenols from olive mill wastewaters by integrated membrane system. Water Res. 44, 3883-3892. PMid:20639013

Garrido Hoyos SE, Martínez Nieto L, Camacho Rubio F, Ramos Cormenzana A. 2002. Kinetics of aerobic treatment of olive-mill wastewater (OMW) with Aspergillus terreus. Process Biochem. 37, 1169-1176.

Grafias P, Xekoukoulotakis NP, Mantzavinos D, Diamadopoulos E. 2010. Pilot treatment of olive pomace leachate by vertical-flow constructed wetland and electrochemical oxidation: an efficient hybrid process. Water Research 44, 2773-2780. PMid:20199791

Greenberg AE, Clesceri LS, Eaton AD. 2005. Standard Methods for the Examination of Water and Wastewater, APHA/ AWWA/WEF, 22th ed., Washington DC. Cabs.

Haddadin M S Y, Haddadin J, Arabiyat O I, Hattar B. 2009. Biological conversion of olive pomace into compost by using Trichoderma harzianum and Phanerochaete chrysosporium. Biores. Tech. 100, 4773-4782. PMid:19467866

Hodaifa G, Ochando-Pulido JM, Rodriguez-Vives S, Martínez- Férez A. 2013a. Optimization of continuous reactor at pilot scale for olive-oil mill wastewater treatment by Fenton-like process. Chem. Eng. J. 220, 117-124.

Hodaifa G, Eugenia-Sánchez M, Sánchez S. 2008. Use of industrial wastewater from olive-oil extraction for biomass production of Scenedesmus obliquus. Bioresour. Technol. 99, 1111-1117. PMid:17434730

Hodaifa G, Ochando-Pulido JM, Ben-Driss-Alami S, Rodriguez- Vives S, Martínez-Férez A. 2013b. Kinetic and thermodynamic parameters of iron adsorption onto olive stones. Ind. Crops Prod. 49, 526-534.

Inan H, Dimoglo A, ?im?ek H, Karpuzcu M. 2004. Olive oil mill wastewater treatment by means of electro-coagulation. Sep. Purif. Technol. 36, 23-31.

Jain S, Gupta SK, 2004. Analysis of modified surface force pore flow model with concentration polarization and comparison with Spiegler-Kedem model in reverse osmosis systems. J. Membr. Sci. 232, 45-62.

Lafi WK, Shannak B, Al-Shannag M, Al-Anber Z, Al-Hasan M. 2009. Treatment of olive mill wastewater by combined advanced oxidation and biodegradation. Separ. Purif. Technol. 70, 141-146.

Madaeni SS, Samieirad S. 2010. Chemical cleaning of reverse osmosis membrane fouled by wastewater. Desalination 257, 80-86.

Martínez Nieto L, Ben Driss Alami S, Hodaifa G, Faur C, Rodríguez Vives S, Giménez Casares JA, Ochando J. 2010. Adsorption of iron on crude olive stones. Ind. Crop. Prod. 32, 467-471.

Martínez Nieto L, Hodaifa G, Rodríguez Vives S, Giménez Casares JA, Ochando J. 2011a. Flocculation-sedimentation combined with chemical oxidation process. Clean - Soil, air, water 39, 949-955.

Martínez Nieto L, Hodaifa G, Rodríguez Vives S, Giménez Casares JA, Ochando J. 2011b. Degradation of organic matter in olive oil mill wastewater through homogeneous Fenton-like reaction. Chem. Eng. J. 173, 503-510.

Marques IP. 2001. Anaerobic digestion treatment of olive mill wastewater for effluent re-use in irrigation. Desalination 137, 233-239.

Mott R L, Untener J A, Applied Fluid Mechanics, 7th edition, University of Dayton, 2014.

Ochando-Pulido JM, Rodriguez-Vives S, Martínez-Férez A. 2012a. The effect of permeate recirculation on the depuration of pretreated olive mill wastewater through reverse osmosis membranes. Desalination 286, 145-154.

Ochando-Pulido JM, Hodaifa G, Rodriguez-Vives S, Martínez- Férez A. 2012b. Impacts of operating conditions on reverse osmosis performance of pretreated olive mill wastewater. Water Res. 46, 4621-4632. PMid:22771149

Ochando-Pulido JM, Hodaifa G, Victor-Ortega MD, Rodriguez- Vives S, Martínez-Férez A, 2013a. Effective treatment of olive mill effluents from two-phase and three-phase extraction processes by batch membranes in series operation upon threshold conditions. J. Hazard. Mater. 263, 168-176. PMid:23602253

Ochando-Pulido JM, Hodaifa G, Victor-Ortega MD, Rodriguez- Vives S, Martínez-Férez A, 2013b. Reuse of olive mill effluents from two-phase extraction process by integrated advanced oxidation and reverse osmosis treatment, J. Hazard. Mater. 263, 158-67. PMid:23910394

Ochando-Pulido JM, Hodaifa G, Victor-Ortega MD, Martínez- Férez A, 2014. A novel photocatalyst with ferromagnetic core used for the treatment of olive oil mill effluents from two-phase production process. The Scientific World Journal 2014. PMid:24592177 PMCid:PMC3925542

Ochando-Pulido J.M., Stoller M, 2014. Boundary flux optimization of a nanofiltration membrane module used for the treatment of olive mill wastewater from a two-phase extraction process. Separ. Purif. Technol. 130, 124-131.

Papadimitriou EK, Chatjipavlidis I, Balis C. 1997. Application of composting to olive mill wastewater treatment. Environ. Technol. 18, 101-107.

Paraskeva P, Diamadopoulos E. 2006. Technologies for olive mill wastewater (OMW) treatment: A review. J. Chem. Technol. Biotechnol. 81, 475-485.

Paraskeva C A, Papadakis V G, Tsarouchi E, Kanellopoulou D G, Koutsoukos P G. 2007. Membrane processing for olive mill wastewater fractionation. Desalination 213, 218-229.

Russo C. 2007. A new membrane process for the selective fractionation and total recovery of polyphenols, water and organic substances from vegetation waters (VW). J. Membr. Sci. 288, 239-246.

Sacco O, Stoller M, Vaiano V, Ciambelli P, Chianese A, Sannino D. 2012. Photocatalytic degradation of organic dyes under visible light on n-doped photocatalysts. Int. J. Photoenergy 2012.

Sarika R, Kalogerakis N, Mantzavinos D. 2005. Treatment of olive mill effluents. Part II. Complete removal of solids by direct flocculation with poly-electrolytes. Environ. Int. 31, 297-304. PMid:15661298

Stasinakis A S, Elia I, Petalas A V, Halvadakis C P. 2008. Removal of total phenols from olive-mill wastewater using an agricultural by-product, olive pomace. J. Hazard. Mater. 160, 408-413. PMid:18417287

Stoller M. 2008. Technical optimization of a dual ultrafiltration and nanofiltration pilot plant in batch operation by means of the critical flux theory: a case study. Chem. Eng. Process. 47, 1165-1170.

Stoller M. 2009. On the effect of flocculation as pretreatment process and particle size distribution for membrane fouling reduction. Desalination 240, 209-217.

Stoller M. 2011. Effective fouling inhibition by critical flux based optimization methods on a NF membrane module for olive mill wastewater treatment. Chem. Eng. J. 168, 1140-1148.

Stoller M, Ochando-Pulido JM. 2012. Going from a critical flux concept to a threshold flux concept on membrane processes treating olive mill wastewater streams. Procedia Eng. 44, 607-608.

Stoller M, Ochando-Pulido J.M., 2014. About merging threshold and critical flux concepts into a single one: the boundary flux. The Scientific World J. 2014, 656101. PMid:24592177 PMCid:PMC3925542

Stoller M, Ochando-Pulido J.M., 2015. The boundary flux handbook: A comprehensive database of critical and threshold flux values for membrane practitioners, Amsterdam (Netherlands), Elsevier.

Stoller M, Ochando-Pulido JM, di Palma L, Martínez-Férez A. 2015. Membrane process enhancement of 2-phase and 3-phase olive mill wastewater treatment plants by photocatalysis with magnetic-core titanium dioxide nanoparticles. J. Ind. & Eng. Chem. In press, 2015.

Tekin A R, Co?kun Dalgıç A. 2000. Biogas production from olive pomace. Resour. Conserv. Recy. 30, 301-313.

Tezcan Ü, U?ur S, Koparal AS, Ö?ütveren ÜB. 2006. Electrocoagulation of olive mill wastewaters. Sep. Purif. Technol. 52, 136-141.

Turano E, Curcio S, De Paola M G, Calabrò V, Iorio G. 2002. An integrated centrifugation–ultrafiltration system in the treatment of olive mill wastewater. J. Membr. Sci. 206, 519-531.

Vincent-Vela MC, Cuartas-Uribe B, Álvarez-Blanco S, Lora- García J. 2011. Analysis of fouling resistances under dynamic membrane filtration. Chem. Eng. Process. 50, 404–408.

Yiantsios S G, Karabelas A J. 2002. An assessment of the Silt Density Index based on RO membrane colloidal fouling experiments with iron oxide particles. Desalination 15, 229- 238.



How to Cite

Ochando-Pulido JM, Víctor-Ortega MD, Martínez-Férez A. Recovery of iron after Fenton-like secondary treatment of olive mill wastewater by nano-filtration and low-pressure reverse osmosis membranes. Grasas aceites [Internet]. 2016Sep.30 [cited 2024Apr.14];67(3):e147. Available from: