Removal of mercury(II) from aqueous solution using moss (Drepanocladus revolvens) biomass: Equilibrium, thermodynamic and kinetic studies

Ahmet Sari; Mustafa Tuzen

doi:10.1016/j.jhazmat.2009.06.023

Removal of mercury(II) from aqueous solution using moss (Drepanocladus revolvens) biomass: Equilibrium, thermodynamic and kinetic studies

Ahmet Sari
, Mustafa Tuzen^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

144 Scopus citations

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 60 min, biomass concentration 4 g L^-1 of solution, and temperature 20 °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 (ΔG°, ΔS°, ΔH°) 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 1 M HCl. It was concluded that the D. revolvens biomass can be used as biosorbent for the treatment of wastewaters containing Hg(II) ions.

Original language	English
Pages (from-to)	500-507
Number of pages	8
Journal	Journal of Hazardous Materials
Volume	171
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jhazmat.2009.06.023
State	Published - 15 Nov 2009
Externally published	Yes

Bibliographical note

Funding Information:
The authors are grateful for the financial support of the Unit of the Scientific Research Projects of Gaziosmanpasa University. The authors also would like to thank O.D. Uluozlu for his helps in experimental studies and Dr. T. Ozdemir for identification of the moss.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation

Keywords

D. revolvens
Isotherm
Kinetics
Mercury ion
Removal

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution
Health, Toxicology and Mutagenesis

Access to Document

10.1016/j.jhazmat.2009.06.023

Cite this

@article{96d841ce803a4fe9b4bddc9047ea768f,

title = "Removal of mercury(II) from aqueous solution using moss (Drepanocladus revolvens) biomass: Equilibrium, thermodynamic and kinetic studies",

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 60 min, biomass concentration 4 g L-1 of solution, and temperature 20 °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 (ΔG°, ΔS°, ΔH°) 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 1 M HCl. It was concluded that the D. revolvens biomass can be used as biosorbent for the treatment of wastewaters containing Hg(II) ions.",

keywords = "D. revolvens, Isotherm, Kinetics, Mercury ion, Removal",

author = "Ahmet Sari and Mustafa Tuzen",

note = "Funding Information: The authors are grateful for the financial support of the Unit of the Scientific Research Projects of Gaziosmanpasa University. The authors also would like to thank O.D. Uluozlu for his helps in experimental studies and Dr. T. Ozdemir for identification of the moss.",

year = "2009",

month = nov,

day = "15",

doi = "10.1016/j.jhazmat.2009.06.023",

language = "English",

volume = "171",

pages = "500--507",

journal = "Journal of Hazardous Materials",

issn = "0304-3894",

publisher = "Elsevier BV",

number = "1-3",

}

TY - JOUR

T1 - Removal of mercury(II) from aqueous solution using moss (Drepanocladus revolvens) biomass

T2 - Equilibrium, thermodynamic and kinetic studies

AU - Sari, Ahmet

AU - Tuzen, Mustafa

N1 - Funding Information: The authors are grateful for the financial support of the Unit of the Scientific Research Projects of Gaziosmanpasa University. The authors also would like to thank O.D. Uluozlu for his helps in experimental studies and Dr. T. Ozdemir for identification of the moss.

PY - 2009/11/15

Y1 - 2009/11/15

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 60 min, biomass concentration 4 g L-1 of solution, and temperature 20 °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 (ΔG°, ΔS°, ΔH°) 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 1 M HCl. It was concluded that the D. revolvens biomass can be used as biosorbent for the treatment of wastewaters containing Hg(II) ions.

AB - 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 60 min, biomass concentration 4 g L-1 of solution, and temperature 20 °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 (ΔG°, ΔS°, ΔH°) 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 1 M HCl. It was concluded that the D. revolvens biomass can be used as biosorbent for the treatment of wastewaters containing Hg(II) ions.

KW - D. revolvens

KW - Isotherm

KW - Kinetics

KW - Mercury ion

KW - Removal

UR - https://www.scopus.com/pages/publications/70349230859

U2 - 10.1016/j.jhazmat.2009.06.023

DO - 10.1016/j.jhazmat.2009.06.023

M3 - Article

C2 - 19576694

AN - SCOPUS:70349230859

SN - 0304-3894

VL - 171

SP - 500

EP - 507

JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

IS - 1-3

ER -

Removal of mercury(II) from aqueous solution using moss (Drepanocladus revolvens) biomass: Equilibrium, thermodynamic and kinetic studies

Abstract

Bibliographical note

UN SDGs

Keywords

ASJC Scopus subject areas

Access to Document

Fingerprint

Cite this