RT Journal Article
T1 Integrated direct contact membrane distillation for olive mill wastewater treatment
A1 El-Abbassi, A.
A1 Hafidi, A.
A1 Khayet Souhaimi, Mohamed
A1 García Payo, M. Carmen
AB Direct contact membrane distillation (DCMD) process was applied for olive mill wastewater (OMW) treatment and its concentration using a commercial flat-sheet polytetrafluoroethylene membrane (TF200, Gelman) with 0.2 mu m mean pore size. The effects of the mean temperature and temperature difference on the DCMD permeate flux were studied. Two pre-treatment processes, coagulation/flocculation and microfiltration (MF), were considered and the effects of each one on the DCMD performance were investigated. MF was found to be the optimum pre-treatment to be integrated to DCMD for OMW. When the permeate temperature was kept constant at 20 degrees C, the DCMD permeate flux increased with the increase of the feed temperature. However, the permeate flux decreased with the feed phenol concentration of OMW. The concentration factor of each phenolic compound varied from 1.56 to 2.93. The main phenolic compound in the tested OMW samples was found to be the hydroxytyrosol, which was concentrated more than two times from 4.01 g/L to 8.16 g/L after 40 h of OMW processing by DCMD. The membrane fouling phenomenon was also studied. Results showed that the integrated MF/DCMD can be an effective process for the treatment and concentration of OMW obtaining clean water and a phenolic-rich concentrate.
PB Elsevier Science Bv
SN 0011-9164
YR 2013
FD 2013-08-15
LK https://hdl.handle.net/20.500.14352/33567
UL https://hdl.handle.net/20.500.14352/33567
LA eng
NO © 2012 Elsevier B.V. The authors gratefully acknowledge the financial support of AECI (Agencia Espanola de Cooperacion Internacional, Ministerio de Asuntos Exteriores y de Cooperacion) through the projects A/023127/09 and A/032278/10.
NO AECI (Agencia Española de Cooperación Internacional, Ministerio de Asuntos Exteriores y de Cooperación)
DS Docta Complutense
RD 12 abr 2025