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- Title
Vegetable lignocellulosic wastes used as biosorbent for removal of Cu(II) from aqueous media.
- Authors
Tanasa, Alexandra Maria; Puitel, Adrian Catalin; Tataru-Farmus, Ramona Elena; Suteu, Daniela
- Abstract
The use of plant waste as a biosorbent to retain chemical contaminants in wastewater is one of many approaches to plant waste recovery produced by various industries. In this context, we set out to examine the biosorption capability of some vegetable waste that was produced during the liquid–solid extraction process used to get plant extracts (used later as biopesticides) from plants like Primula veris, Achillea millefolium, Origanum vulgare, and Artemisia absinthium. This type of biosorbent was used for the biosorption of Cu(II) ions from aqueous solutions in a batch system. In order to assess their biosorptive properties, the influence of certain physical parameters such as: temperature, solution pH, amount of biosorbent, metal ion concentration, and phase contact time were investigated. The experimental data were processed on the basis of Freundlich, Langmuir and Dubinin– Radushkevich adsorption isotherm models, and the obtained results underline that the equilibrium data were best fitted by Langmuir I isotherm with a biosorption capacity of about 24.271 mg/g at 22°C.
- Subjects
COPPER; LIGNOCELLULOSE; WASTE recycling; ADSORPTION isotherms; PRIMROSES; BIOPESTICIDES; OREGANO
- Publication
Desalination & Water Treatment, 2023, Vol 293, p216
- ISSN
1944-3994
- Publication type
Article
- DOI
10.5004/dwt.2023.29552