期刊
BIORESOURCE TECHNOLOGY
卷 365, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2022.128162
关键词
Olive mill wastewater; Carbon composite; Removal of hazardous molecules; Adsorption; Valorization of biological wastewater
A Carbon/Oxocalcium composite was prepared from olive mill wastewater and showed significant adsorption capacities for paracetamol and methylene blue in water. This study provides a new method for the development of stable carbon composites and cost-effective valorization of olive mill wastewater.
In this study, a Carbon/Oxocalcium was prepared from olive mill wastewater and successfully applied to the removal of paracetamol and methylene blue (MB) from an aqueous medium. The optimized composite (0.3 % CaO) is rich in anionic sites, porous and has a specific surface area of about 1383 m(2).g(-1). Adsorption tests showed significant adsorption capacities up to 1141 mg.g(-1). The adsorption of MB and paracetamol is well described by the Redlich-Peterson and Dubinin-Radushkevich isotherm, respectively. Moreover, the adsorption kinetics fitted to pseudo-second order. The pi-pi interactions, hydrogen bonds and electrostatic interactions were responsible for the adsorption of paracetamol and MB substrates. This work develops by a single, easy and simple action a new effective and selective material for the removal of emerging pollutants, a new method for the development of more stable carbon composites and a cost-effective method for the valorization of olive mill wastewater.
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