Removal of Phenolic Compounds from Olive Mill Wastewater by a Polydimethylsiloxane/oxMWCNTs Porous Nanocomposite
User-friendly and energy-efficient methods able to work in noncontinuous mode for <i>in situ</i> purification of olive mill wastewater (OMW) are necessary. Herein we determined the potential of oxidized multiwalled carbon nanotubes entrapped in a microporous polymeric matrix of polydimet...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-12-01
|
| Series: | Water |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4441/12/12/3471 |
| _version_ | 1797545165805584384 |
|---|---|
| author | Antonio Turco Cosimino Malitesta |
| author_facet | Antonio Turco Cosimino Malitesta |
| author_sort | Antonio Turco |
| collection | DOAJ |
| description | User-friendly and energy-efficient methods able to work in noncontinuous mode for <i>in situ</i> purification of olive mill wastewater (OMW) are necessary. Herein we determined the potential of oxidized multiwalled carbon nanotubes entrapped in a microporous polymeric matrix of polydimethylsiloxane in the removal and recovery of phenolic compounds (PCs) from OMW. The fabrication of the nanocomposite materials was straightforward and evidenced good adsorption capacity. The adsorption process is influenced by the pH of the OMW. Thermodynamic parameters evidenced the good affinity of the entrapped nanomaterial towards phenols. Furthermore, the kinetics and adsorption isotherms are studied in detail. The presence of oil inside the OMW can speed up the uptake process in batch adsorption experiments with respect to standard aqueous solutions, suggesting a possible use of the nanocomposite for fast processing of OMW directly in the tank where they are stored. Moreover, the prepared nanocomposite is safe and can be easily handled and disposed of, thus avoiding the presence of specialized personnel. After the adsorption process the surface of the nanomaterial can be easily regenerated by mild treatments with diluted acetic acid, thus permitting both the recyclability of the nanomaterial and the recovery of phenolic compounds for a possible use as additives in food and nutraceutical industries and the recovery of OMW for fertirrigation. |
| first_indexed | 2024-03-10T14:11:37Z |
| format | Article |
| id | doaj.art-5075ab56ac114a2bb042793cf3227bf2 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T14:11:37Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-5075ab56ac114a2bb042793cf3227bf22023-11-21T00:07:51ZengMDPI AGWater2073-44412020-12-011212347110.3390/w12123471Removal of Phenolic Compounds from Olive Mill Wastewater by a Polydimethylsiloxane/oxMWCNTs Porous NanocompositeAntonio Turco0Cosimino Malitesta1Department of Biological and Environmental Sciences and Technologies (Di.S.Te.B.A.), University of Salento, Via Monteroni, 73100 Lecce, ItalyDepartment of Biological and Environmental Sciences and Technologies (Di.S.Te.B.A.), University of Salento, Via Monteroni, 73100 Lecce, ItalyUser-friendly and energy-efficient methods able to work in noncontinuous mode for <i>in situ</i> purification of olive mill wastewater (OMW) are necessary. Herein we determined the potential of oxidized multiwalled carbon nanotubes entrapped in a microporous polymeric matrix of polydimethylsiloxane in the removal and recovery of phenolic compounds (PCs) from OMW. The fabrication of the nanocomposite materials was straightforward and evidenced good adsorption capacity. The adsorption process is influenced by the pH of the OMW. Thermodynamic parameters evidenced the good affinity of the entrapped nanomaterial towards phenols. Furthermore, the kinetics and adsorption isotherms are studied in detail. The presence of oil inside the OMW can speed up the uptake process in batch adsorption experiments with respect to standard aqueous solutions, suggesting a possible use of the nanocomposite for fast processing of OMW directly in the tank where they are stored. Moreover, the prepared nanocomposite is safe and can be easily handled and disposed of, thus avoiding the presence of specialized personnel. After the adsorption process the surface of the nanomaterial can be easily regenerated by mild treatments with diluted acetic acid, thus permitting both the recyclability of the nanomaterial and the recovery of phenolic compounds for a possible use as additives in food and nutraceutical industries and the recovery of OMW for fertirrigation.https://www.mdpi.com/2073-4441/12/12/3471olive mill wastewatercarbon nanotubespolydimethilsiloxanewaste treatmentphenolic compoundsresources recovery |
| spellingShingle | Antonio Turco Cosimino Malitesta Removal of Phenolic Compounds from Olive Mill Wastewater by a Polydimethylsiloxane/oxMWCNTs Porous Nanocomposite Water olive mill wastewater carbon nanotubes polydimethilsiloxane waste treatment phenolic compounds resources recovery |
| title | Removal of Phenolic Compounds from Olive Mill Wastewater by a Polydimethylsiloxane/oxMWCNTs Porous Nanocomposite |
| title_full | Removal of Phenolic Compounds from Olive Mill Wastewater by a Polydimethylsiloxane/oxMWCNTs Porous Nanocomposite |
| title_fullStr | Removal of Phenolic Compounds from Olive Mill Wastewater by a Polydimethylsiloxane/oxMWCNTs Porous Nanocomposite |
| title_full_unstemmed | Removal of Phenolic Compounds from Olive Mill Wastewater by a Polydimethylsiloxane/oxMWCNTs Porous Nanocomposite |
| title_short | Removal of Phenolic Compounds from Olive Mill Wastewater by a Polydimethylsiloxane/oxMWCNTs Porous Nanocomposite |
| title_sort | removal of phenolic compounds from olive mill wastewater by a polydimethylsiloxane oxmwcnts porous nanocomposite |
| topic | olive mill wastewater carbon nanotubes polydimethilsiloxane waste treatment phenolic compounds resources recovery |
| url | https://www.mdpi.com/2073-4441/12/12/3471 |
| work_keys_str_mv | AT antonioturco removalofphenoliccompoundsfromolivemillwastewaterbyapolydimethylsiloxaneoxmwcntsporousnanocomposite AT cosiminomalitesta removalofphenoliccompoundsfromolivemillwastewaterbyapolydimethylsiloxaneoxmwcntsporousnanocomposite |