Membranes | |
Performance Modeling and Cost Analysis of a Pilot-Scale Reverse Osmosis Process for the Final Purification of Olive Mill Wastewater | |
Javier Miguel Ochando-Pulido2  Gassan Hodaifa1  Maria Dolores Victor-Ortega2  | |
[1] Department of Molecular Biology and Biochemical Engineering, University of Pablo de Olavide, 41013 Seville, Spain; E-Mail:;Department of Chemical Engineering, University of Granada, 18071 Granada, Spain; E-Mails: | |
关键词: olive mill wastewater; advanced oxidation processes; membrane processes; reverse osmosis; wastewater reclamation; modelization; | |
DOI : 10.3390/membranes3040285 | |
来源: mdpi | |
【 摘 要 】
A secondary treatment for olive mill wastewater coming from factories working with the two-phase olive oil production process (OMW-2) has been set-up on an industrial scale in an olive oil mill in the premises of Jaén (Spain). The secondary treatment comprises Fenton-like oxidation followed by flocculation-sedimentation and filtration through olive stones. In this work, performance modelization and preliminary cost analysis of a final reverse osmosis (RO) process was examined on pilot scale for ulterior purification of OMW-2 with the goal of closing the loop of the industrial production process. Reduction of concentration polarization on the RO membrane equal to 26.3% was provided upon increment of the turbulence over the membrane to values of Reynolds number equal to 2.6 × 104. Medium operating pressure (25 bar) should be chosen to achieve significant steady state permeate flux (21.1 L h−1 m−2) and minimize membrane fouling, ensuring less than 14.7% flux drop and up to 90% feed recovery. Under these conditions, irreversible fouling below 0.08 L h−2 m−2 bar−1 helped increase the longevity of the membrane and reduce the costs of the treatment. For 10 m3 day−1 OMW-2 on average, 47.4 m2 required membrane area and 0.87 € m−3 total costs for the RO process were estimated.
【 授权许可】
CC BY
© 2013 by the authors; licensee MDPI, Basel, Switzerland.
【 预 览 】
Files | Size | Format | View |
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RO202003190032715ZK.pdf | 970KB | download |