Biosorption of mercury(II) ions from aqueous solution by garlic (Allium sativum L.) powder

Yujin Eom; Jong Hyun Won; Jae Yong Ryu; Tai Gyu Lee

doi:10.1007/s11814-010-0514-y

Biosorption of mercury(II) ions from aqueous solution by garlic (Allium sativum L.) powder

Yujin Eom, Jong Hyun Won, Jae Yong Ryu, Tai Gyu Lee

Department of Chemical and Biomolecular Engineering

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

36 Citations (Scopus)

Abstract

A biosorbent was prepared by drying garlic (Allium sativum L.) under vacuum and tested in its powder form for its mercury adsorption capability in aqueous solution. Results show that garlic powder has a good adsorption capacity for mercury and that the mercury concentration of the solution has a significant impact on the adsorption capacity of the biosorbent. The Langmuir and Freundlich adsorption isotherms were also constructed. The adsorption capacity, q_max, adsorption efficiency, b, and correclation confficient, r² for the Langmuir model were 0.6497, 0.4903, and 0.9980, respectively. For the Freundlich model, the model parameters, K_F, 1/n, and r² for mercury were 4.1879, 0.3467, and 0.9518, respectively. Langmuir adsorption isotherm was better suited for the adsorption of mercury onto garlic powder, and that the maximum amount of mercury adsorbed (q_max) was 0.6497 mg/g.

Original language	English
Pages (from-to)	1439-1443
Number of pages	5
Journal	Korean Journal of Chemical Engineering
Volume	28
Issue number	6
DOIs	https://doi.org/10.1007/s11814-010-0514-y
Publication status	Published - 2011 Jun

Bibliographical note

Funding Information:
This work was supported by Ministry of Environment as the Eco-technopia 21 project (No. 2007-01003-0059-0) and by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2009-0079977).

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)

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title = "Biosorption of mercury(II) ions from aqueous solution by garlic (Allium sativum L.) powder",

abstract = "A biosorbent was prepared by drying garlic (Allium sativum L.) under vacuum and tested in its powder form for its mercury adsorption capability in aqueous solution. Results show that garlic powder has a good adsorption capacity for mercury and that the mercury concentration of the solution has a significant impact on the adsorption capacity of the biosorbent. The Langmuir and Freundlich adsorption isotherms were also constructed. The adsorption capacity, qmax, adsorption efficiency, b, and correclation confficient, r2 for the Langmuir model were 0.6497, 0.4903, and 0.9980, respectively. For the Freundlich model, the model parameters, KF, 1/n, and r2 for mercury were 4.1879, 0.3467, and 0.9518, respectively. Langmuir adsorption isotherm was better suited for the adsorption of mercury onto garlic powder, and that the maximum amount of mercury adsorbed (qmax) was 0.6497 mg/g.",

author = "Yujin Eom and Won, {Jong Hyun} and Ryu, {Jae Yong} and Lee, {Tai Gyu}",

note = "Funding Information: This work was supported by Ministry of Environment as the Eco-technopia 21 project (No. 2007-01003-0059-0) and by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2009-0079977).",

year = "2011",

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doi = "10.1007/s11814-010-0514-y",

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AU - Eom, Yujin

AU - Won, Jong Hyun

AU - Ryu, Jae Yong

AU - Lee, Tai Gyu

N1 - Funding Information: This work was supported by Ministry of Environment as the Eco-technopia 21 project (No. 2007-01003-0059-0) and by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2009-0079977).

PY - 2011/6

Y1 - 2011/6

N2 - A biosorbent was prepared by drying garlic (Allium sativum L.) under vacuum and tested in its powder form for its mercury adsorption capability in aqueous solution. Results show that garlic powder has a good adsorption capacity for mercury and that the mercury concentration of the solution has a significant impact on the adsorption capacity of the biosorbent. The Langmuir and Freundlich adsorption isotherms were also constructed. The adsorption capacity, qmax, adsorption efficiency, b, and correclation confficient, r2 for the Langmuir model were 0.6497, 0.4903, and 0.9980, respectively. For the Freundlich model, the model parameters, KF, 1/n, and r2 for mercury were 4.1879, 0.3467, and 0.9518, respectively. Langmuir adsorption isotherm was better suited for the adsorption of mercury onto garlic powder, and that the maximum amount of mercury adsorbed (qmax) was 0.6497 mg/g.

AB - A biosorbent was prepared by drying garlic (Allium sativum L.) under vacuum and tested in its powder form for its mercury adsorption capability in aqueous solution. Results show that garlic powder has a good adsorption capacity for mercury and that the mercury concentration of the solution has a significant impact on the adsorption capacity of the biosorbent. The Langmuir and Freundlich adsorption isotherms were also constructed. The adsorption capacity, qmax, adsorption efficiency, b, and correclation confficient, r2 for the Langmuir model were 0.6497, 0.4903, and 0.9980, respectively. For the Freundlich model, the model parameters, KF, 1/n, and r2 for mercury were 4.1879, 0.3467, and 0.9518, respectively. Langmuir adsorption isotherm was better suited for the adsorption of mercury onto garlic powder, and that the maximum amount of mercury adsorbed (qmax) was 0.6497 mg/g.

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Biosorption of mercury(II) ions from aqueous solution by garlic (Allium sativum L.) powder

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