A sustainable and highly efficient fossil-free carbon from olive stones for emerging contaminants removal from different water matrices

• DOI: 10.1016/j.chemosphere.2024.141189
• Publication Date: 2024-01-09T22:47:20Z
• Authors: Osamah J. Al-sareji; Ruqayah Ali Grmasha; Mónika Meiczinger; Raed A. Al-Juboori; Viola Somogyi; Csilla Stenger-Ko...; Khalid S. Hashim
• Keywords: Carbon fibers

The olive stone is a large waste product of the oil extraction industry. present study investigates developing activated carbon from (OSAC) to remove pharmaceuticals water. Different temperatures and stone: KOH ratios were studied. OSAC produced at 750 °C 1:3 ratio was found have highest porosity surface area tested in adsorption process. Diclofenac ciprofloxacin selected as model contaminants. process optimized with regards dosage, pH, temperature, initial concentration adsorbate. be effective for wide pH range (2–11) an optimum dosage 1 g/L 25 °C. almost completely removed 75 min. endothermic followed first-order kinetics physical mechanisms such electrostatic possibly being main driver. conditions applied test removal diclofenac synthetic water, lake water (Lake Balaton, Hungary) secondary wastewater seven cycles. There little difference between matrices highlighting potency adsorbent pharmaceutical industrial applications. dropped >99% first cycle 20–30% seventh cycle.