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Membranes 2015, 5(4), 513-531; doi:10.3390/membranes5040513

On the Recent Use of Membrane Technology for Olive Mill Wastewater Purification

Department of Chemical Engineering, University of Granada, Granada 18071, Spain
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Author to whom correspondence should be addressed.
Academic Editor: Alberto Figoli
Received: 6 August 2015 / Accepted: 24 September 2015 / Published: 28 September 2015
(This article belongs to the Special Issue Membranes for Environmental Applications)
View Full-Text   |   Download PDF [270 KB, uploaded 28 September 2015]   |  

Abstract

Many reclamation treatments as well as integrated processes for the purification of olive mill wastewaters (OMW) have already been proposed and developed but not led to completely satisfactory results, principally due to complexity or cost-ineffectiveness. The olive oil industry in its current status, composed of little and dispersed factories, cannot stand such high costs. Moreover, these treatments are not able to abate the high concentration of dissolved inorganic matter present in these highly polluted effluents. In the present work, a review on the actual state of the art concerning the treatment and disposal of OMW by membranes is addressed, comprising microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), and reverse osmosis (RO), as well as membrane bioreactors (MBR) and non-conventional membrane processes such as vacuum distillation (VD), osmotic distillation (OD) and forward osmosis (FO). Membrane processes are becoming extensively used to replace many conventional processes in the purification of water and groundwater as well as in the reclamation of wastewater streams of very diverse sources, such as those generated by agro-industrial activities. Moreover, a brief insight into inhibition and control of fouling by properly-tailored pretreatment processes upstream the membrane operation and the use of the critical and threshold flux theories is provided. View Full-Text
Keywords: olive mill wastewater; membrane processes; microfiltration; nanofiltration; reverse osmosis; membrane bioreactors olive mill wastewater; membrane processes; microfiltration; nanofiltration; reverse osmosis; membrane bioreactors
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Ochando-Pulido, J.M.; Martinez-Ferez, A. On the Recent Use of Membrane Technology for Olive Mill Wastewater Purification. Membranes 2015, 5, 513-531.

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