Kinetic study of adsorption of phenolic compounds from olive oil mill wastewater on activated carbon
Olive oil Mill Wastewater (OMW) is not degradable due to the presence of substances (phenols, volatile fatty acids, etc.), which pose problems for the environment. In order to protect this environment, currently know various treatment methods of wastewater such as adsorption. We have studie...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Faculty of Technology, Novi Sad
2023-01-01
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| Series: | Acta Periodica Technologica |
| Subjects: | |
| Online Access: | https://doiserbia.nb.rs/img/doi/1450-7188/2023/1450-71882354197D.pdf |
| Summary: | Olive oil Mill Wastewater (OMW) is not degradable due to the presence of
substances (phenols, volatile fatty acids, etc.), which pose problems for
the environment. In order to protect this environment, currently know
various treatment methods of wastewater such as adsorption. We have studied
in our work the adsorption capacity of phenolic compounds present in Olive
Oil Mill Wastewater on activated carbon (AC). The phenolic compounds are
known for their carcinogenicity and their high toxicity and the activated
carbon is the most popular and widely used adsorbent material for OMW
treatment. The AC was prepared by the valorization of agrifood waste that
are olive leaves (calcination followed by chemical activation using
phosphoric acid). A range of analyses was carried out for the
characterization of the used adsorbent, among them: Infrared (IR)
spectroscopy, which showed the main characteristic bands of activated
carbons, X-ray diffractometry (XRD), iodine value, moisture content, ash
content and pHzpc. The effect of several parameters such as contact time,
amount of adsorbent and pH of the solution were studied. The best adsorption
conditions are simple to achieve: Ambient temperature, direct use of the
olive oil mill wastewater (V = 100 mL, pH = 1.95) with 4 g mass of AC
adsorbent. The obtained adsorption kinetics showed that the adsorption of
phenolic compounds from OMW on prepared activated carbon is well described
by the Pseudo second order. The obtained results indicate the possibility of
olive leaves valorization in the form of activated carbon with what all this
implies as socio-economic impacts |
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| ISSN: | 1450-7188 2406-095X |