Biosorption of strontium from aqueous solutions onto spent coffee grounds

Imessaoudene, Djillali; Hanini, Salah; Bouzidi, Abdelkader

doi:10.1007/s10967-013-2510-2

Cited by 28 publications

(20 citation statements)

References 35 publications

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“…In fact, many of authors indicated that the kinetics of metals adsorption on different biosorbents is in conformity with the assumptions of the model of the pseudo-second-order [7]. The initial rate (H = 1.761 mg g −1 min −1 ) indicated that the cobalt biosorption occurred promptly.…”

Section: Kinetics Modelingmentioning

confidence: 78%

“…The peak located at 1,165 cm −1 is characteristic of the C-O-C vibration. The infrared bands are slightly shifted from the bands 3,473, 1,641, 1,543, 1,377, 1,088, and 613 cm −1 to 3,465, 1,635, 1,520, 1,379, 1,068, and to 609, respectively, demonstrating that the groups -OH, C=O, and the amino groups played a role in the Co 2+ biosorption [7,9].…”

Section: Characterizationmentioning

confidence: 91%

“…1). The broad adsorption peak at around 3,473 cm −1 originating from the presence of carboxylic acid and amino groups were supported by the emergence of the peaks at 1,088, 1,641, and 1,543 cm −1 allocated to -OH, C=O, and amine groups, respectively [7,8]. The peaks 2,925 and 2,854 cm −1 could be allotted to the vibration of aliphatic groups CH.…”

Section: Characterizationmentioning

confidence: 98%

“…The spent coffee (SC) can play a key role in wastewater treatment processes; it would be useful in decontamination of wastewater and allows an alternative usage of unused waste. Columns tests can also be investigated using this kind of materials because of their rigidity and permeability [7].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Kinetic and thermodynamic study of cobalt adsorption by spent coffee

Imessaoudene

Hanini

Bouzidi

et al. 2016

Desalination and Water Treatment

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A B S T R A C TThe biosorption of cobalt from aqueous solution onto a spent coffee (SC) was carried out to assess the effectiveness of the adsorbent used in the removal of Co(II) from aqueous solution by batch tests. Adsorption of Co(II) as a function of contact time, pH, and temperature was investigated. The kinetic study revealed that adsorption followed better a second-order type reaction with high correlation coefficient (R 2 = 0.999). Adsorption data were described using Freundlich and Langmuir models. The thermodynamic study for the Co(II) adsorption onto SC showed that the process was spontaneous with a raised affinity for Co(II) (ΔG˚< 0 and ΔS˚> 0), exothermic (ΔH˚< 0), and occurred with physical adsorption mechanism (E a = 10.922 kJ mol −1 ).

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Section: Kinetics Modelingmentioning

confidence: 78%

Section: Characterizationmentioning

confidence: 91%

Section: Characterizationmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Kinetic and thermodynamic study of cobalt adsorption by spent coffee

Imessaoudene

Hanini

Bouzidi

et al. 2016

Desalination and Water Treatment

Self Cite

View full text Add to dashboard Cite

show abstract

“…Metal ions that are more electronegative can be more strongly attracted to the surface. The acidity of the solution affects the speciation of ions and the surface properties of the adsorbents [52][53][54][55].…”

Section: Multi-component Systemsmentioning

confidence: 99%

A Case Study of Landfill Leachate Using Coal Bottom Ash for the Removal of Cd2+, Zn2+ and Ni2+

Ayala

Fernández

2016

Metals

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Abstract:The removal of Cd 2+ , Zn 2+ and Ni 2+ by coal bottom ash has been investigated. In single metal system, metal uptake was studied in batch adsorption experiments as a function of pH (2-3), contact time (5-180 min), initial metal concentration (50-400 mg/L), adsorbent concentration (5-40 g/L), particle size, and ionic strength (0-1 M NaCl). Removal percentages of metals ions increased with increasing pH and dosage. Removal efficiency at lower concentrations was greater than at higher values. The maximum amount of metal ion adsorbed in milligrams per gram was 35.4, 35.1 and 34.6 mg/g for Zn 2+ , Cd 2+ and Ni 2+ , respectively, starting out from an initial solution at pH 3. Simultaneous removal of Zn 2+ , Cd 2+ and Ni 2+ ions from ternary systems was also investigated and compared with that from single systems. Cd 2+ uptake was significantly affected by the presence of competing ions at pH 2. The results obtained in the tests with landfill leachate showed that bottom ash is effective in simultaneously removing several heavy metals such as Ni, Zn, Cd, As, Mn, Cu, Co, Se, Hg, Ag, and Pb.

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Torrefied spent coffee grounds as biofillers for poly(butylene adipate‐co‐terephthalate) biocomposites

Kim,

Kwon,

Park

2024

J of Applied Polymer Sci

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In this study, poly(butylene adipate‐co‐terephthalate) (PBAT) biocomposites were generated from spent coffee grounds (SCGs) or torrefied SCG (TSCGs) using a melt compounding process. TSCGs were obtained at torrefaction temperatures of 230, 245, 260, 275, or 290°C for a duration of 60 min. Torrefaction enhanced the hydrophobicity, grindability, and biomass stability of the resulting composites by eliminating hemicellulose. Various concentrations of SCGs (10 and 20 wt.%) and TSCGs (10, 20, and 30 wt.%) were compounded into PBAT. The thermal, mechanical, and degradation properties of PBAT biocomposites were investigated. As SCGs and TSCGs were introduced, the crystallization temperature drastically increased. Compared with PBAT biocomposites with SCGs, PBAT biocomposites with TSCGs exhibited higher thermal stability and hydrophobicity, and improved mechanical properties. Further, alkaline hydrolysis occurred at a faster rate for biocomposites with biofillers than for neat PBAT. Therefore, this study demonstrated the improved compatibility between SCGs and PBAT by torrefaction.

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Biosorption of strontium from aqueous solutions onto spent coffee grounds

Cited by 28 publications

References 35 publications

Kinetic and thermodynamic study of cobalt adsorption by spent coffee

Kinetic and thermodynamic study of cobalt adsorption by spent coffee

A Case Study of Landfill Leachate Using Coal Bottom Ash for the Removal of Cd2+, Zn2+ and Ni2+

Torrefied spent coffee grounds as biofillers for poly(butylene adipate‐co‐terephthalate) biocomposites

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