Thiol-incorporated activated carbon derived from fir wood sawdust as an efficient adsorbent for the removal of mercury ion: Batch and fixed-bed column studies

Magnetic Fe3O4@Chitosan Carbon Microbeads: Removal of Doxycycline from Aqueous Solutions through a Fixed Bed via Sequential Adsorption and Heterogeneous Fenton-Like Regeneration

“…It should be noted that the highest experimental adsorption capacity (4.18 mg/g) was achieved at the lowest C 0 (20 mg/L), which indicated that the adsorption process was favorable at lower solute concentration. The stronger driving force between the solute in the adsorbent and the solute in the solution makes the active sites of the adsorbent consume quickly, and finally an earlier breakthrough time and a sharper breakthrough curve were obtained [39]. The results obtained in the present study are in good agreement with the results obtained by Han et al [47] where rice husk was used to adsorb methylene blue from the aqueous solution in a fixed-bed absorber at various inlet concentrations.…”

“…The fixed-bed adsorption requires very few devices and low operational cost. The fixed-bed columns are essential towards the industrial scale design and scale-up of the continuous system for required applications and performances [39]. Generally, the column process is continuous and the influent wastewater comes in touch with a certain amount of adsorbents, hereby affording room for a large volume of flowing polluted fluid [40].…”

Aqueous Mercury Removal with Carbonaceous and Iron Sulfide Sorbents and Their Applicability as Thin-Layer Caps in Mercury-Contaminated Estuary Sediment

“…The influence of sorbent dosage on Hg removal has been investigated to find out the appropriate dosage of sorbents as a basis for subsequently study. The sorbent dosage determines the sorption capacity of sorbents for a given concentration of Hg 2+ because it controls the sorbent-sorbate equilibrium of a system [37]. The effects of sorbents dosage on Hg sorption were studied in the dosage range of 5−60 mg in 50 mL Hg 2+ solution.…”

Synthesis and Characterization of CuFe2O4 Nanoparticles Modified with Polythiophene: Applications to Mercuric Ions Removal

“…Various physical and chemical methods have been used for elimination of mercury from polluted water including adsorption, ion exchange, coagulation, membrane filtration, electrochemical treatment, solvent extraction and chemical precipitation [9][10][11][12][13][14][15][16][17][18]. However, adsorption techniques are distinguished by simple and low-cost techniques and reusability of adsorbent [19][20][21][22].…”