Effects of salinity and humic acid on the sorption of Hg on Fe and Mn hydroxides

Peng Liang; Yi Chun Li; Chan Zhang; Sheng Chun Wu; Hao Jie Cui; Shen Yu; Ming Hung WONG

doi:10.1016/j.jhazmat.2012.11.050

Effects of salinity and humic acid on the sorption of Hg on Fe and Mn hydroxides

Peng Liang, Yi Chun Li, Chan Zhang, Sheng Chun Wu, Hao Jie Cui, Shen Yu, Ming Hung WONG^*

^*Corresponding author for this work

Department of Biology

Research output: Contribution to journal › Journal article › peer-review

36 Citations (Scopus)

Abstract

The objective of this study was to investigate the influence of humic acid (HA) and salinity on adsorption of Hg on the amorphous and crystalline of iron and manganese hydroxides. The results show that the adsorption of Hg²⁺ on Fe and Mn hydroxides was inhibited in marine system due to the formation of stable, nonsorbing aqueous HgCl₂ complexes in solution. Moreover, Cl^- inhibited the Hg²⁺ adsorption more severely on amorphous than crystalline hydroxides. The addition of HA inhibited Hg²⁺ adsorption on Fe and Mn hydroxides in freshwater system might be attributed to the competition between Hg²⁺ and HA on adsorption to Fe and Mn hydroxides. In contrast, the addition of HA promoted Hg²⁺ adsorption on Fe and Mn hydroxides in the marine system, which might be due to the addition of humic acid resulted in the reaction between Cl^- and HA, and therefore the reducing of Cl^- promoted more Hg²⁺ on Fe and Mn hydroxides. In addition, the influence of HA on Hg²⁺ adsorption on Fe and Mn hydroxides are more visible for crystalline than amorphous hydroxides.

Original language	English
Pages (from-to)	322-328
Number of pages	7
Journal	Journal of Hazardous Materials
Volume	244-245
DOIs	https://doi.org/10.1016/j.jhazmat.2012.11.050
Publication status	Published - 5 Jan 2013

Scopus Subject Areas

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

User-Defined Keywords

Adsorption
Chloride
Humic acid
Hydroxides
Mercury

UN SDGs

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

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10.1016/j.jhazmat.2012.11.050

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title = "Effects of salinity and humic acid on the sorption of Hg on Fe and Mn hydroxides",

abstract = "The objective of this study was to investigate the influence of humic acid (HA) and salinity on adsorption of Hg on the amorphous and crystalline of iron and manganese hydroxides. The results show that the adsorption of Hg2+ on Fe and Mn hydroxides was inhibited in marine system due to the formation of stable, nonsorbing aqueous HgCl2 complexes in solution. Moreover, Cl- inhibited the Hg2+ adsorption more severely on amorphous than crystalline hydroxides. The addition of HA inhibited Hg2+ adsorption on Fe and Mn hydroxides in freshwater system might be attributed to the competition between Hg2+ and HA on adsorption to Fe and Mn hydroxides. In contrast, the addition of HA promoted Hg2+ adsorption on Fe and Mn hydroxides in the marine system, which might be due to the addition of humic acid resulted in the reaction between Cl- and HA, and therefore the reducing of Cl- promoted more Hg2+ on Fe and Mn hydroxides. In addition, the influence of HA on Hg2+ adsorption on Fe and Mn hydroxides are more visible for crystalline than amorphous hydroxides.",

keywords = "Adsorption, Chloride, Humic acid, Hydroxides, Mercury",

author = "Peng Liang and Li, {Yi Chun} and Chan Zhang and Wu, {Sheng Chun} and Cui, {Hao Jie} and Shen Yu and WONG, {Ming Hung}",

note = "Funding Information: Financial support from the Collaborative Research Fund (CRF) ( HKBU 1/07C ), Special Equipment Grant ( SEG HKBU09 ) of the Research Grants Council of Hong Kong and Mini AOE (Area of Excellence) Fund of the Hong Kong Baptist University (No. RC/AOE/08-09/01 ), Natural Science Foundation of Zhejiang Province (No. LQ12D03001 ) and Natural Science Foundation of Zhejiang A&F University ( 2011FK003 ) are gratefully acknowledged.",

year = "2013",

month = jan,

day = "5",

doi = "10.1016/j.jhazmat.2012.11.050",

language = "English",

volume = "244-245",

pages = "322--328",

journal = "Journal of Hazardous Materials",

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TY - JOUR

T1 - Effects of salinity and humic acid on the sorption of Hg on Fe and Mn hydroxides

AU - Liang, Peng

AU - Li, Yi Chun

AU - Zhang, Chan

AU - Wu, Sheng Chun

AU - Cui, Hao Jie

AU - Yu, Shen

AU - WONG, Ming Hung

N1 - Funding Information: Financial support from the Collaborative Research Fund (CRF) ( HKBU 1/07C ), Special Equipment Grant ( SEG HKBU09 ) of the Research Grants Council of Hong Kong and Mini AOE (Area of Excellence) Fund of the Hong Kong Baptist University (No. RC/AOE/08-09/01 ), Natural Science Foundation of Zhejiang Province (No. LQ12D03001 ) and Natural Science Foundation of Zhejiang A&F University ( 2011FK003 ) are gratefully acknowledged.

PY - 2013/1/5

Y1 - 2013/1/5

N2 - The objective of this study was to investigate the influence of humic acid (HA) and salinity on adsorption of Hg on the amorphous and crystalline of iron and manganese hydroxides. The results show that the adsorption of Hg2+ on Fe and Mn hydroxides was inhibited in marine system due to the formation of stable, nonsorbing aqueous HgCl2 complexes in solution. Moreover, Cl- inhibited the Hg2+ adsorption more severely on amorphous than crystalline hydroxides. The addition of HA inhibited Hg2+ adsorption on Fe and Mn hydroxides in freshwater system might be attributed to the competition between Hg2+ and HA on adsorption to Fe and Mn hydroxides. In contrast, the addition of HA promoted Hg2+ adsorption on Fe and Mn hydroxides in the marine system, which might be due to the addition of humic acid resulted in the reaction between Cl- and HA, and therefore the reducing of Cl- promoted more Hg2+ on Fe and Mn hydroxides. In addition, the influence of HA on Hg2+ adsorption on Fe and Mn hydroxides are more visible for crystalline than amorphous hydroxides.

AB - The objective of this study was to investigate the influence of humic acid (HA) and salinity on adsorption of Hg on the amorphous and crystalline of iron and manganese hydroxides. The results show that the adsorption of Hg2+ on Fe and Mn hydroxides was inhibited in marine system due to the formation of stable, nonsorbing aqueous HgCl2 complexes in solution. Moreover, Cl- inhibited the Hg2+ adsorption more severely on amorphous than crystalline hydroxides. The addition of HA inhibited Hg2+ adsorption on Fe and Mn hydroxides in freshwater system might be attributed to the competition between Hg2+ and HA on adsorption to Fe and Mn hydroxides. In contrast, the addition of HA promoted Hg2+ adsorption on Fe and Mn hydroxides in the marine system, which might be due to the addition of humic acid resulted in the reaction between Cl- and HA, and therefore the reducing of Cl- promoted more Hg2+ on Fe and Mn hydroxides. In addition, the influence of HA on Hg2+ adsorption on Fe and Mn hydroxides are more visible for crystalline than amorphous hydroxides.

KW - Adsorption

KW - Chloride

KW - Humic acid

KW - Hydroxides

KW - Mercury

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JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

ER -

Effects of salinity and humic acid on the sorption of Hg on Fe and Mn hydroxides

Abstract

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