Extraction of lyophilized olive mill wastewater using supercritical CO2 processes
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2022
Authors
Dali, ImenAydi, Abdelkarim
Stamenić, Marko
Kolsi, Lioua
Ghachem, Kaouther
Zizovic, Irena
Manef, Abderrabba
Delgado, Daniel R.
Article (Published version)
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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 modelSource:
Alexandria Engineering Journal, 2022, 61, 1, 237-246Institution/Community
Tehnološko-metalurški fakultetTY - 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 . .