The olive growing in Tunisia has an economic dominance and agricultural importance. However, the huge extraction of olive oil generates a large quantity of olive mill wastewater (OMW), which is discharged to the surroundings. The highly polluting potential (organic load) of OMW threatens the environment and requires an urgent solution. Supercritical fluid extraction (SFE) is a green extraction method that can be applied to purify OMW and, at the same time, to isolate a high quality oil from this wastewater. In order to explore and to valorize the compositions of Olive mill wastewater (OMW), extraction in different solvents (supercritical CO2, hexane) was carried out and chemical composition of the extracted oils were established by GC-FID. The Tunisia OMW were collected from two different zones namely Sousse and Sfax. In this work, we have investigated the effects pressure (P) and temperature (T) on the yield and the quality of oil. The suitable conditions for the extraction of oil fro...m lyophilized OMW by Super-critical carbon dioxide (SC-CO2) were found to be the pressure of 30 MPa and the temperature of 60 degrees C. In order to simulate the process, the model of broken and intact cells (Sovova's model) was applied. The model well represented the experimental data.
Keywords:
Supercritical CO2 / Lipids / Olive mill wastewater / Modeling / Sovova's model
TY - JOUR
AU - Dali, Imen
AU - Aydi, Abdelkarim
AU - Stamenić, Marko
AU - Kolsi, Lioua
AU - Ghachem, Kaouther
AU - Zizovic, Irena
AU - Manef, Abderrabba
AU - Delgado, Daniel R.
PY - 2022
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4977
AB - The olive growing in Tunisia has an economic dominance and agricultural importance. However, the huge extraction of olive oil generates a large quantity of olive mill wastewater (OMW), which is discharged to the surroundings. The highly polluting potential (organic load) of OMW threatens the environment and requires an urgent solution. Supercritical fluid extraction (SFE) is a green extraction method that can be applied to purify OMW and, at the same time, to isolate a high quality oil from this wastewater. In order to explore and to valorize the compositions of Olive mill wastewater (OMW), extraction in different solvents (supercritical CO2, hexane) was carried out and chemical composition of the extracted oils were established by GC-FID. The Tunisia OMW were collected from two different zones namely Sousse and Sfax. In this work, we have investigated the effects pressure (P) and temperature (T) on the yield and the quality of oil. The suitable conditions for the extraction of oil from lyophilized OMW by Super-critical carbon dioxide (SC-CO2) were found to be the pressure of 30 MPa and the temperature of 60 degrees C. In order to simulate the process, the model of broken and intact cells (Sovova's model) was applied. The model well represented the experimental data.
T2 - Alexandria Engineering Journal
T1 - Extraction of lyophilized olive mill wastewater using supercritical CO2 processes
EP - 246
IS - 1
SP - 237
VL - 61
DO - 10.1016/j.aej.2021.04.0881110-0168
ER -
@article{
author = "Dali, Imen and Aydi, Abdelkarim and Stamenić, Marko and Kolsi, Lioua and Ghachem, Kaouther and Zizovic, Irena and Manef, Abderrabba and Delgado, Daniel R.",
year = "2022",
abstract = "The olive growing in Tunisia has an economic dominance and agricultural importance. However, the huge extraction of olive oil generates a large quantity of olive mill wastewater (OMW), which is discharged to the surroundings. The highly polluting potential (organic load) of OMW threatens the environment and requires an urgent solution. Supercritical fluid extraction (SFE) is a green extraction method that can be applied to purify OMW and, at the same time, to isolate a high quality oil from this wastewater. In order to explore and to valorize the compositions of Olive mill wastewater (OMW), extraction in different solvents (supercritical CO2, hexane) was carried out and chemical composition of the extracted oils were established by GC-FID. The Tunisia OMW were collected from two different zones namely Sousse and Sfax. In this work, we have investigated the effects pressure (P) and temperature (T) on the yield and the quality of oil. The suitable conditions for the extraction of oil from lyophilized OMW by Super-critical carbon dioxide (SC-CO2) were found to be the pressure of 30 MPa and the temperature of 60 degrees C. In order to simulate the process, the model of broken and intact cells (Sovova's model) was applied. The model well represented the experimental data.",
journal = "Alexandria Engineering Journal",
title = "Extraction of lyophilized olive mill wastewater using supercritical CO2 processes",
pages = "246-237",
number = "1",
volume = "61",
doi = "10.1016/j.aej.2021.04.0881110-0168"
}
Dali, I., Aydi, A., Stamenić, M., Kolsi, L., Ghachem, K., Zizovic, I., Manef, A.,& Delgado, D. R.. (2022). Extraction of lyophilized olive mill wastewater using supercritical CO2 processes. in Alexandria Engineering Journal, 61(1), 237-246.
https://doi.org/10.1016/j.aej.2021.04.0881110-0168
Dali I, Aydi A, Stamenić M, Kolsi L, Ghachem K, Zizovic I, Manef A, Delgado DR. Extraction of lyophilized olive mill wastewater using supercritical CO2 processes. in Alexandria Engineering Journal. 2022;61(1):237-246.
doi:10.1016/j.aej.2021.04.0881110-0168 .
Dali, Imen, Aydi, Abdelkarim, Stamenić, Marko, Kolsi, Lioua, Ghachem, Kaouther, Zizovic, Irena, Manef, Abderrabba, Delgado, Daniel R., "Extraction of lyophilized olive mill wastewater using supercritical CO2 processes" in Alexandria Engineering Journal, 61, no. 1 (2022):237-246,
https://doi.org/10.1016/j.aej.2021.04.0881110-0168 . .
