Heavy metal contaminant remediation study of western Xiamen Bay sediment, China: Laboratory bench scale testing results

Luoping Zhang, Huan Feng, Xiaoxia Li, Xin Ye, Youhai Jing, Tong Ouyang, Xingtian Yu, Rongyuan Liang, Weiqi Chen

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

A surface sediment sample (<5 cm) was collected from a sewage sludge contaminated site (118°02.711′E, 24°32.585′N) within western Xiamen Bay, China, in July 2005 for a sediment decontamination study. A series of laboratory-based experiments under various conditions were performed using chemical complexation reagents (e.g., H2C2O4, EDTA-2Na, etc.) and their combination in order to provide information for sediment remediation technology development. In this study, the results suggest that aeration and agitation of the sediment samples in distilled-deionized water (DDW) have either no or weak (<30%) effect on metal removal, whereas agitation, aeration and rotation of the samples in chemical complexation solutions yield much better metal removal efficiency (up to 90%). A low pH condition (e.g., pH < 3) and a low solid to liquid ratio (e.g., S:L = 1:50) could increase metal removal efficiency. The experimental results suggest that 0.20 M (NH4)2C2O4 + 0.025 M EDTA combination with solid:liquid ratio = 1:50 and 0.50 M ammonium acetate (NH4Ac) + 0.025 M EDTA combination with solid:liquid ratio = 1:50 are the most effective methods for metal removal from the contaminated sediments. This research provides additional useful information for sediment metal remediation technology development.

Original languageEnglish
Pages (from-to)108-116
Number of pages9
JournalJournal of Hazardous Materials
Volume172
Issue number1
DOIs
StatePublished - 15 Dec 2009

Fingerprint

Heavy Metals
Remediation
Heavy metals
China
Sediments
remediation
Metals
heavy metal
Impurities
pollutant
Edetic Acid
Ethylenediaminetetraacetic acid
Testing
EDTA
metal
sediment
Sewage
technological development
Complexation
complexation

Keywords

  • Contaminated sediment
  • Heavy metal remediation
  • Laboratory experiment
  • Solvent extraction

Cite this

Zhang, Luoping ; Feng, Huan ; Li, Xiaoxia ; Ye, Xin ; Jing, Youhai ; Ouyang, Tong ; Yu, Xingtian ; Liang, Rongyuan ; Chen, Weiqi. / Heavy metal contaminant remediation study of western Xiamen Bay sediment, China : Laboratory bench scale testing results. In: Journal of Hazardous Materials. 2009 ; Vol. 172, No. 1. pp. 108-116.
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abstract = "A surface sediment sample (<5 cm) was collected from a sewage sludge contaminated site (118°02.711′E, 24°32.585′N) within western Xiamen Bay, China, in July 2005 for a sediment decontamination study. A series of laboratory-based experiments under various conditions were performed using chemical complexation reagents (e.g., H2C2O4, EDTA-2Na, etc.) and their combination in order to provide information for sediment remediation technology development. In this study, the results suggest that aeration and agitation of the sediment samples in distilled-deionized water (DDW) have either no or weak (<30{\%}) effect on metal removal, whereas agitation, aeration and rotation of the samples in chemical complexation solutions yield much better metal removal efficiency (up to 90{\%}). A low pH condition (e.g., pH < 3) and a low solid to liquid ratio (e.g., S:L = 1:50) could increase metal removal efficiency. The experimental results suggest that 0.20 M (NH4)2C2O4 + 0.025 M EDTA combination with solid:liquid ratio = 1:50 and 0.50 M ammonium acetate (NH4Ac) + 0.025 M EDTA combination with solid:liquid ratio = 1:50 are the most effective methods for metal removal from the contaminated sediments. This research provides additional useful information for sediment metal remediation technology development.",
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Heavy metal contaminant remediation study of western Xiamen Bay sediment, China : Laboratory bench scale testing results. / Zhang, Luoping; Feng, Huan; Li, Xiaoxia; Ye, Xin; Jing, Youhai; Ouyang, Tong; Yu, Xingtian; Liang, Rongyuan; Chen, Weiqi.

In: Journal of Hazardous Materials, Vol. 172, No. 1, 15.12.2009, p. 108-116.

Research output: Contribution to journalArticle

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T1 - Heavy metal contaminant remediation study of western Xiamen Bay sediment, China

T2 - Laboratory bench scale testing results

AU - Zhang, Luoping

AU - Feng, Huan

AU - Li, Xiaoxia

AU - Ye, Xin

AU - Jing, Youhai

AU - Ouyang, Tong

AU - Yu, Xingtian

AU - Liang, Rongyuan

AU - Chen, Weiqi

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AB - A surface sediment sample (<5 cm) was collected from a sewage sludge contaminated site (118°02.711′E, 24°32.585′N) within western Xiamen Bay, China, in July 2005 for a sediment decontamination study. A series of laboratory-based experiments under various conditions were performed using chemical complexation reagents (e.g., H2C2O4, EDTA-2Na, etc.) and their combination in order to provide information for sediment remediation technology development. In this study, the results suggest that aeration and agitation of the sediment samples in distilled-deionized water (DDW) have either no or weak (<30%) effect on metal removal, whereas agitation, aeration and rotation of the samples in chemical complexation solutions yield much better metal removal efficiency (up to 90%). A low pH condition (e.g., pH < 3) and a low solid to liquid ratio (e.g., S:L = 1:50) could increase metal removal efficiency. The experimental results suggest that 0.20 M (NH4)2C2O4 + 0.025 M EDTA combination with solid:liquid ratio = 1:50 and 0.50 M ammonium acetate (NH4Ac) + 0.025 M EDTA combination with solid:liquid ratio = 1:50 are the most effective methods for metal removal from the contaminated sediments. This research provides additional useful information for sediment metal remediation technology development.

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