Spray drying of a phenolic-rich membrane filtration fraction of olive mill wastewater: optimisation and dried product quality

2016 ◽  
Vol 51 (8) ◽  
pp. 1900-1909 ◽  
Author(s):  
Ivana Sedej ◽  
Rebecca Milczarek ◽  
Selina C. Wang ◽  
Runqi Sheng ◽  
Roberto de Jesús Avena-Bustillos ◽  
...  
Keyword(s):  
Product Quality ◽  
Spray Drying ◽  
Membrane Filtration ◽  
Olive Mill Wastewater ◽  
Filtration Fraction ◽  
Olive Mill

scholarly journals Technoeconomic Analysis of the Recovery of Phenols from Olive Mill Wastewater through Membrane Filtration and Resin Adsorption/Desorption

2021 ◽  
Vol 13 (4) ◽  
pp. 2376
Author(s):  
Dimitris P. Zagklis ◽  
Costas S. Papageorgiou ◽  
Christakis A. Paraskeva
Keyword(s):  
Capital Investment ◽  
Membrane Filtration ◽  
Hot Spot ◽  
Treatment Method ◽  
Olive Mill Wastewater ◽  
Operational Cost ◽  
Equipment Cost ◽  
Fixed Capital Investment ◽  
Adsorption Desorption ◽  
Olive Mill

Olive mill wastewater is an important agro-industrial waste with no established treatment method. The authors have developed a phenol separation method that could potentially cover the treatment cost of the waste. The purpose of this study was to identify any economic hotspots in the process, the operational cost and examine the margin of profit for such a process. The equipment cost was scaled for different treatment capacities and then used to estimate the fixed capital investment and the yearly operational cost. The highest purchased equipment cost was identified for the membrane filtration system, while the cost for resin replacement was identified as the highest operational cost. The lifespan of the resin used in the adsorption step was identified as an economic hot spot for the process, with the phenols separation cost ranging from 0.84 to 13.6 €/g of phenols for a resin lifespan of 5–100 adsorption/desorption cycles. The lifespan of the resin proved to be the single most important aspect that determines the phenols separation cost. The price range that was calculated for the product of the process is very promising because of the typical value of antioxidants and the low concentration of phenols that are needed for food supplements and cosmetics.

scholarly journals Treatment of Olive Mill Wastewater and the Use of Polyphenols Obtained After Treatment

2012 ◽  
Vol 1 (1) ◽  
Author(s):  
Semih Otles ◽  
Ilknur Selek
Keyword(s):  
Membrane Filtration ◽  
Iron Oxidation ◽  
Antioxidant Properties ◽  
Olive Mill Wastewater ◽  
Treatment Methods ◽  
Ferrous Iron Oxidation ◽  
Short Period ◽  
Wide Range ◽  
Olive Oil Mills ◽  
Olive Mill

Olive mill wastes are signicant environmental problem especially in Mediterranean areas where they are generated in huge quantities in a short period of time. They are phytotoxic materials because of their high phenol, lipid and organic acid concentrations, but these wastes also contain valuable resources that could be recycled such as a large proportion of organic matter and a wide range of nutrients. The effluent from olive oil mills contains a large amount of polyphenols that have antioxidant properties. The market value of these antioxidants is high and they are commonly used in the food, cosmetics, pharmaceutics and chemical industries. For the management of olive mill wastewater (OMW) and other olive residues, various treatment methods can be used. Many scientists work on more efficient and cheaper treatment alternatives. Due to the great variety of compounds in the waste, several technologies to remove the harmful compounds for the environment should be used single or together. Some of the most used OMW treatments are drying / evaporation, forced evaporation, thermal treatment, centrifugation-ultraltration, electrocoagulation, composting, lagooning, adsorption, powdered activated carbon, filtration, sand filtration, membrane filtration, ultrafiltration, precipitation / flocculation, distillation, electrolysis, co-composting, advanced oxidation processes (AOPs) such as ozonation, hydrogen peroxide / ferrous iron oxidation (the so-called Fentons reagent). Several OMW treatment technologies have been developed aiming at the removal of the main toxic organic compounds. A lot of factors must be considered to choose the treatment methods among them the investment, required area, specic training of the workers, noise and odour emissions and seasonality of production.

Purification of olive mill wastewater phenols through membrane filtration and resin adsorption/desorption

2015 ◽  
Vol 285 ◽  
pp. 69-76 ◽  
Author(s):  
Dimitris P. Zagklis ◽  
Aikaterini I. Vavouraki ◽  
Michael E. Kornaros ◽  
Christakis A. Paraskeva
Keyword(s):  
Membrane Filtration ◽  
Olive Mill Wastewater ◽  
Resin Adsorption ◽  
Adsorption Desorption ◽  
Olive Mill

Membrane Filtration of Olive Mill Wastewater and Exploitation of Its Fractions

2007 ◽  
Vol 79 (4) ◽  
pp. 421-429 ◽  
Author(s):  
C. A. Paraskeva ◽  
V. G. Papadakis ◽  
D. G. Kanellopoulou ◽  
P. G. Koutsoukos ◽  
K. C. Angelopoulos
Keyword(s):  
Membrane Filtration ◽  
Olive Mill Wastewater ◽  
Olive Mill

scholarly journals Treatment of Olive Mill Wastewater and the Use of Polyphenols Obtained After Treatment

2012 ◽  
Vol 1 (1) ◽  
Author(s):  
Semih Otles ◽  
Ilknur Selek
Keyword(s):  
Membrane Filtration ◽  
Iron Oxidation ◽  
Antioxidant Properties ◽  
Olive Mill Wastewater ◽  
Treatment Methods ◽  
Ferrous Iron Oxidation ◽  
Short Period ◽  
Wide Range ◽  
Olive Oil Mills ◽  
Olive Mill

Olive mill wastes are signicant environmental problem especially in Mediterranean areas where they are generated in huge quantities in a short period of time. They are phytotoxic materials because of their high phenol, lipid and organic acid concentrations, but these wastes also contain valuable resources that could be recycled such as a large proportion of organic matter and a wide range of nutrients. The effluent from olive oil mills contains a large amount of polyphenols that have antioxidant properties. The market value of these antioxidants is high and they are commonly used in the food, cosmetics, pharmaceutics and chemical industries. For the management of olive mill wastewater (OMW) and other olive residues, various treatment methods can be used. Many scientists work on more efficient and cheaper treatment alternatives. Due to the great variety of compounds in the waste, several technologies to remove the harmful compounds for the environment should be used single or together. Some of the most used OMW treatments are drying / evaporation, forced evaporation, thermal treatment, centrifugation-ultraltration, electrocoagulation, composting, lagooning, adsorption, powdered activated carbon, filtration, sand filtration, membrane filtration, ultrafiltration, precipitation / flocculation, distillation, electrolysis, co-composting, advanced oxidation processes (AOPs) such as ozonation, hydrogen peroxide / ferrous iron oxidation (the so-called Fentons reagent). Several OMW treatment technologies have been developed aiming at the removal of the main toxic organic compounds. A lot of factors must be considered to choose the treatment methods among them the investment, required area, specic training of the workers, noise and odour emissions and seasonality of production.

An approach to turn olive mill wastewater into a valuable food by-product based on spray drying in dehumidified air using drying aids

2017 ◽  
Vol 311 ◽  
pp. 376-389 ◽  
Author(s):  
Athanasios N. Chasekioglou ◽  
Athanasia M. Goula ◽  
Konstantinos G. Adamopoulos ◽  
Harris N. Lazarides
Keyword(s):  
Spray Drying ◽  
Olive Mill Wastewater ◽  
Olive Mill

Biocomposite spheres based on aluminum oxide dispersed with orange-peel powder for adsorption of phenol from batch membrane fraction of olive mill wastewater

2021 ◽  
Vol 42 ◽  
pp. 100402
Author(s):  
Jacques Romain Njimou ◽  
John Godwin ◽  
Hugues Pahimi ◽  
S. Andrada Maicaneanu ◽  
Fridolin Kouatchie-Njeutcha ◽  
...  
Keyword(s):  
Aluminum Oxide ◽  
Membrane Fraction ◽  
Orange Peel ◽  
Olive Mill Wastewater ◽  
Olive Mill

scholarly journals Antioxidant Properties of Olive Mill Wastewater Polyphenolic Extracts on Human Endothelial and Vascular Smooth Muscle Cells

Foods ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 800
Author(s):  
Anna Maria Posadino ◽  
Annalisa Cossu ◽  
Roberta Giordo ◽  
Amalia Piscopo ◽  
Wael M Abdel-Rahman ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Cell Death ◽  
Smooth Muscle ◽  
Vascular Smooth Muscle ◽  
Smooth Muscle Cells ◽  
Olive Oil ◽  
Vascular Smooth Muscle Cells ◽  
Muscle Cells ◽  
Olive Mill Wastewater ◽  
Olive Mill

This work aims to analyze the chemical and biological evaluation of two extracts obtained by olive mill wastewater (OMW), an olive oil processing byproduct. The exploitation of OMW is becoming an important aspect of development of the sustainable olive oil industry. Here we chemically and biologically evaluated one liquid (L) and one solid (S) extract obtained by liquid–liquid extraction followed by acidic hydrolysis (LLAC). Chemical characterization of the two extracts indicated that S has higher phenol content than L. Hydroxytyrosol and tyrosol were the more abundant phenols in both OMW extracts, with hydroxytyrosol significantly higher in S as compared to L. Both extracts failed to induce cell death when challenged with endothelial cells and vascular smooth muscle cells in cell viability experiments. On the contrary, the higher extract dosages employed significantly affected cell metabolic activity, as indicated by the MTT tests. Their ability to counteract H2O2-induced oxidative stress and cell death was assessed to investigate potential antioxidant activities of the extracts. Fluorescence measurements obtained with the reactive oxygen species (ROS) probe H2DCF-DA indicated strong antioxidant activity of the two OMW extracts in both cell models, as indicated by the inhibition of H2O2-induced ROS generation and the counteraction of the oxidative-induced cell death. Our results indicate LLAC-obtained OMW extracts as a safe and useful source of valuable compounds harboring antioxidant activity.

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