| Title |
Optimization and modeling of two-phase olive-oil washing wastewater integral treatment and phenolic compounds recovery by novel weak-base ion exchange resins |
| ID_Doc |
10955 |
| Authors |
Ochando-Pulido, JM; Vellido-Pérez, JA; González-Hernández, R; Martínez-Férez, A |
| Title |
Optimization and modeling of two-phase olive-oil washing wastewater integral treatment and phenolic compounds recovery by novel weak-base ion exchange resins |
| Year |
2020 |
| Published |
|
| DOI |
10.1016/j.seppur.2020.117084 |
| Abstract |
In light of the Circular Economy concept, recently emerged as a need for sustainable production, olive oil industry should be concerned to transform the whole process into environmentally friendly, which necessarily implies the treatment of the wastewater by-produced in olive mills. In this work, concentration and recovery of high-added value phenolic compounds from two-phase olive-oil washing wastewater (OOWW) and parallel effluent treatment by a 'green process' based on novel weak-base ion exchange (IE) resins was addressed. The key operating input factors of the resin process for the treatment and valorization of OOWW were studied, optimized and further modelled. A Box-Behnken design was implemented and the obtained data were analyzed by ANOVA and interpreted by RSM methodology. The process was ulteriorly modelled by a second-grade quadratic fitting equation comprising the significant operating variables. The optimization of the IE process performance (20.3 degrees C, pH(0) 6.7 and 114 g/L M-resin) ensured up to 92.5% recovery of total phenols concentration. Moreover, the purified stream presented good quality (56.6-83.7 mg L-1 total phenols), following standard recommendations by the FAO. The obtained information would be of key importance for the scale-up of the proposed IE operation. Both the treatment and revalorization of OOWW would help implement a definite sustainable production process of olive-oil. |
| Author Keywords |
Olive-oil washing wastewater; Ion exchange; Resins; Phenolic compounds; Wastewater reclamation; Sustainability |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000540235100008 |
| WoS Category |
Engineering, Chemical |
| Research Area |
Engineering |
| PDF |
https://digibug.ugr.es/bitstream/10481/79001/1/SEPPUR_2019_4543_Revision%201_V0.pdf
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