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 journalArticleResearchpeer-review

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 journalArticleResearchpeer-review

TY - JOUR

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.

KW - Contaminated sediment

KW - Heavy metal remediation

KW - Laboratory experiment

KW - Solvent extraction

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SN - 0304-3894

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