6533b854fe1ef96bd12ae1a8
RESEARCH PRODUCT
Olive mill wastewaters decontamination based on organo-nano-clay composites
Filippo ParisiGiuseppe LazzaraSelene CasellaLuciana SciasciaGiuseppe CavallaroStefana MiliotoFrancesco Princivallesubject
PolyphenolMaterials Chemistry2506 Metals and AlloysMaterials scienceHill isothermXRDIntercalation (chemistry)Surfaces Coatings and FilmQuillaja saponinCeramics and Composite02 engineering and technology01 natural sciencesCoatings and Filmschemistry.chemical_compoundAdsorptionPulmonary surfactant0103 physical sciencesMaterials ChemistryElectronicOrganoclayOptical and Magnetic MaterialsComposite materialMontmorillonite010302 applied physicsOlive mill wastewaterAdsorption; Biowaste; Hill isotherm; Montmorillonite; Olive mill wastewaters; Polyphenols; Quillaja saponin; TGA; XRD; Electronic Optical and Magnetic Materials; Ceramics and Composites; Process Chemistry and Technology; Surfaces Coatings and Films; Materials Chemistry2506 Metals and AlloysTGAbiologyElectronic Optical and Magnetic MaterialProcess Chemistry and TechnologyPolyphenolsHuman decontaminationBiowaste021001 nanoscience & nanotechnologybiology.organism_classificationSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsSurfacesSubstrate (building)MontmorillonitechemistryQuillajaCeramics and CompositesOlive mill wastewatersAdsorption0210 nano-technologydescription
Abstract Green composites for environmental applications were successfully prepared by intercalation of the biosurfactant Quillaja saponin onto montmorillonite mineral clay on varying pH and surfactant/clay ratio. Equilibrium adsorption isotherms were constructed and the system was characterized by performing TGA and XRD analyses. The efficiency of the surfactant-modified clay in the removal of the organic content present in olive mill wastewaters (OMW) was evaluated by means of spectrophotometric measurements. The interest for this cogent issue comes from the consideration that, despite their high pollutant content, OMW can be considered as a potential resource of several organic compounds which can be recovered for a wide array of pharmaceutical and industrial applications. Two different strategies were proposed. In the first one, dried surfactant/clay hybrids were added to the batch samples under continuous stirring, while in the second alternative approach the organoclays were packed in chromatography column filled with multiple alternate layers of sand and organoclay. These studies revealed the efficacy of the methods used and suggested that the modification of the montmorillonite clay substrate significantly improves the performance of the clay.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-02-01 |