RT Journal Article
T1 Micellar enhanced ultrafiltration process for the treatment of olive mill wastewater
A1 El Abbassi, Abdelilah
A1 Khayet Souhaimi, Mohamed
A1 Hafidi, Abdellatif
AB Olive mill wastewater (OMW) is an important environmental pollution problem, especially in the Mediterranean, which is the main olive oil production region worldwide. Environmental impact of OMW is related to its high organic load and particularly to the phytotoxic and antibacterial action of its phenolic content. In fact, polyphenols are known as powerful antioxidants with interesting nutritional and pharmaceutical properties. In the present work, the efficiency of OMIV Micellar Enhanced Ultrafiltration (MEUF) treatment for removal and concentration of polyphenols was investigated, using an anionic surfactant (Sodium Dodecyl Sulfate salt, SDS) and a hydrophobic poly(vinyldene fluoride) (PVDF) membrane. The effects of the process experimental conditions on the permeate flux were investigated, and the secondary membrane resistance created by SDS molecules was evaluated. The initial fluxes of OMW processing by MEUF using SDS were 25.7 and 44.5 l/m(2) h under transmembrane pressures of 3.5 and 4.5 bar, respectively. The rejection rate of polyphenols without using any surfactant ranged from 5 to 28%, whereas, it reached 74% when SDS was used under optimum pH (pH 2). The MEUF provides a slightly colored permeate (about 88% less dark), which requires clearly less chemical oxygen demand (COD) for its oxidation (4.33% of the initial COD). These results showed that MEUF process can efficiently be applied to the treatment of OMW and for the concentration and recovery of polyphenols.
PB Pergamon-Elsevier Science LTD
SN 0043-1354
YR 2011
FD 2011-10-01
LK https://hdl.handle.net/20.500.14352/44261
UL https://hdl.handle.net/20.500.14352/44261
LA eng
NO © 2011 Elsevier Ltd. The authors gratefully acknowledge the financial support from International Foundation of Science (Stockholm, Sweden) Grant No: W/4749-1.
NO International Foundation of Science (Stockholm, Sweden)
DS Docta Complutense
RD 12 abr 2025