Tags

Type your tag names separated by a space and hit enter

Removal of mercury(II) from aqueous solution using moss (Drepanocladus revolvens) biomass: equilibrium, thermodynamic and kinetic studies.
J Hazard Mater. 2009 Nov 15; 171(1-3):500-7.JH

Abstract

The equilibrium, thermodynamics and kinetics of the biosorption of Hg(II) onto moss (Drepanocladus revolvens) biomass from aqueous solution were investigated. Optimum experimental parameters were determined to be pH 5.5, contact time 60min, biomass concentration 4 g L(-1) of solution, and temperature 20 degrees C. From the Langmuir model the maximum biosorption capacity of the moss biomass was found to be 94.4 mg g(-1). The mean free energy value (10.2 kJ mol(-1)) evaluated by using the Dubinin-Radushkevich (D-R) model indicated that the biosorption of mercury ions onto D. revolvens was taken place by chemical ion-exchange. The kinetic studies indicated that the biosorption process of mercury ions followed well pseudo-second-order model. The calculated thermodynamic parameters (DeltaG degrees , DeltaS degrees , DeltaH degrees) showed the biosorption to be exothermic and spontaneous with decreased randomness at the solid-solution interface. The recovery of the Hg(II) from D. revolvens biomass was found to be 99% using 1M HCl. It was concluded that the D. revolvens biomass can be used as biosorbent for the treatment of wastewaters containing Hg(II) ions.

Links

Publisher Full Text

Authors+Show Affiliations

Sari A
Department of Chemistry, Faculty of Science and Arts, Gaziosmanpasa University, Tasliciftlik Campus, 60250 Tokat, Turkey.
Tuzen M
No affiliation info available

MeSH

AdsorptionBiodegradation, EnvironmentalBiomassBryophytaHydrogen-Ion ConcentrationIonsKineticsMercurySpectroscopy, Fourier Transform InfraredTemperatureThermodynamicsTime FactorsWater Pollutants, ChemicalWater Purification

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19576694

Citation

Sari, Ahmet, and Mustafa Tuzen. "Removal of mercury(II) From Aqueous Solution Using Moss (Drepanocladus Revolvens) Biomass: Equilibrium, Thermodynamic and Kinetic Studies." Journal of Hazardous Materials, vol. 171, no. 1-3, 2009, pp. 500-7.
Sari A, Tuzen M. Removal of mercury(II) from aqueous solution using moss (Drepanocladus revolvens) biomass: equilibrium, thermodynamic and kinetic studies. J Hazard Mater. 2009;171(1-3):500-7.
Sari, A., & Tuzen, M. (2009). Removal of mercury(II) from aqueous solution using moss (Drepanocladus revolvens) biomass: equilibrium, thermodynamic and kinetic studies. Journal of Hazardous Materials, 171(1-3), 500-7. https://doi.org/10.1016/j.jhazmat.2009.06.023
Sari A, Tuzen M. Removal of mercury(II) From Aqueous Solution Using Moss (Drepanocladus Revolvens) Biomass: Equilibrium, Thermodynamic and Kinetic Studies. J Hazard Mater. 2009 Nov 15;171(1-3):500-7. PubMed PMID: 19576694.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Removal of mercury(II) from aqueous solution using moss (Drepanocladus revolvens) biomass: equilibrium, thermodynamic and kinetic studies. AU - Sari,Ahmet, AU - Tuzen,Mustafa, Y1 - 2009/06/16/ PY - 2009/04/22/received PY - 2009/06/06/revised PY - 2009/06/08/accepted PY - 2009/7/7/entrez PY - 2009/7/7/pubmed PY - 2010/1/20/medline SP - 500 EP - 7 JF - Journal of hazardous materials JO - J Hazard Mater VL - 171 IS - 1-3 N2 - The equilibrium, thermodynamics and kinetics of the biosorption of Hg(II) onto moss (Drepanocladus revolvens) biomass from aqueous solution were investigated. Optimum experimental parameters were determined to be pH 5.5, contact time 60min, biomass concentration 4 g L(-1) of solution, and temperature 20 degrees C. From the Langmuir model the maximum biosorption capacity of the moss biomass was found to be 94.4 mg g(-1). The mean free energy value (10.2 kJ mol(-1)) evaluated by using the Dubinin-Radushkevich (D-R) model indicated that the biosorption of mercury ions onto D. revolvens was taken place by chemical ion-exchange. The kinetic studies indicated that the biosorption process of mercury ions followed well pseudo-second-order model. The calculated thermodynamic parameters (DeltaG degrees , DeltaS degrees , DeltaH degrees) showed the biosorption to be exothermic and spontaneous with decreased randomness at the solid-solution interface. The recovery of the Hg(II) from D. revolvens biomass was found to be 99% using 1M HCl. It was concluded that the D. revolvens biomass can be used as biosorbent for the treatment of wastewaters containing Hg(II) ions. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/19576694/Removal_of_mercury_II__from_aqueous_solution_using_moss__Drepanocladus_revolvens__biomass:_equilibrium_thermodynamic_and_kinetic_studies_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(09)00942-X DB - PRIME DP - Unbound Medicine ER -