Content, distribution and fate of 33 elements in sediments of rivers receiving wastewater in Hanoi, Vietnam

Helle Marcussen; Anders Dalsgaard; Peter Engelund Holm

doi:10.1016/j.envpol.2007.11.001

Content, distribution and fate of 33 elements in sediments of rivers receiving wastewater in Hanoi, Vietnam

Helle Marcussen
, Anders Dalsgaard
, Peter Engelund Holm

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

Abstract

Untreated industrial and domestic wastewater from Hanoi city is discharged into rivers that supply water for various agricultural and aquacultural food production systems. The aim of this study was to assess the content, distribution and fate of 33 elements in the sediment and pore water of the main wastewater receiving rivers. The sediment was polluted with potentially toxic elements (PTEs) with maximum concentrations of 73 As, 427 Cd, 281 Cr, 240 Cu, 218 Ni, 363 Pb, 12.5 Sb and 1240 Zn mg kg ^-1 d.w. Observed distribution coefficients (log ₁₀ K _d,obs) were calculated as the ratio between sediment (mg kg ^-1 d.w.) and pore water (mg L ^-1) concentrations. Maxima log ₁₀ K _d,obs were >4.26 Cd, >6.60 Cu, 4.78 Ni, 7.01 Pb and 6.62 Zn. The high values show a strong PTE retention and indicate the importance of both sorption and precipitation as retention mechanisms. Sulphide precipitation was a likely mechanism due to highly reduced conditions.

Original language	English
Journal	Environmental Pollution
Volume	155
Issue number	1
Pages (from-to)	41-51
Number of pages	11
ISSN	0269-7491
DOIs	https://doi.org/10.1016/j.envpol.2007.11.001
Publication status	Published - Sept 2008
Externally published	Yes

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@article{4e10aee880bf441cbb797255f95df796,

title = "Content, distribution and fate of 33 elements in sediments of rivers receiving wastewater in Hanoi, Vietnam",

abstract = "Untreated industrial and domestic wastewater from Hanoi city is discharged into rivers that supply water for various agricultural and aquacultural food production systems. The aim of this study was to assess the content, distribution and fate of 33 elements in the sediment and pore water of the main wastewater receiving rivers. The sediment was polluted with potentially toxic elements (PTEs) with maximum concentrations of 73 As, 427 Cd, 281 Cr, 240 Cu, 218 Ni, 363 Pb, 12.5 Sb and 1240 Zn mg kg -1 d.w. Observed distribution coefficients (log 10 K d,obs) were calculated as the ratio between sediment (mg kg -1 d.w.) and pore water (mg L -1) concentrations. Maxima log 10 K d,obs were >4.26 Cd, >6.60 Cu, 4.78 Ni, 7.01 Pb and 6.62 Zn. The high values show a strong PTE retention and indicate the importance of both sorption and precipitation as retention mechanisms. Sulphide precipitation was a likely mechanism due to highly reduced conditions.",

keywords = "Former LIFE faculty, Heavy metals, Elements, Hanoi, River, Sediment",

author = "Helle Marcussen and Anders Dalsgaard and Holm, \{Peter Engelund\}",

note = "Funding Information: The National Institute of Occupational and Environmental Health (NIOEH), Vietnam provided assistance in sample collection and laboratory facilities in Vietnam. The study was carried out with funds from the Council for Development Research (RUF), Danida, Danish Ministry of Foreign Affairs through grant number 104.Dan.8.-887 “Metal accumulation and food safety in wastewater-fed aquatic production systems in Cambodia and Vietnam” and the EU-funded project “Production in Aquatic Peri-Urban Systems in South-East Asia” (PAPUSSA). Further funds were provided by the Research School of Environmental Chemistry and Ecotoxicology (RECETO) and the Faculty of Life Sciences at the University of Copenhagen, Denmark.",

year = "2008",

month = sep,

doi = "10.1016/j.envpol.2007.11.001",

language = "English",

volume = "155",

pages = "41--51",

journal = "Environmental Pollution",

issn = "0269-7491",

publisher = "Elsevier Ltd",

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T1 - Content, distribution and fate of 33 elements in sediments of rivers receiving wastewater in Hanoi, Vietnam

AU - Marcussen, Helle

AU - Dalsgaard, Anders

AU - Holm, Peter Engelund

N1 - Funding Information: The National Institute of Occupational and Environmental Health (NIOEH), Vietnam provided assistance in sample collection and laboratory facilities in Vietnam. The study was carried out with funds from the Council for Development Research (RUF), Danida, Danish Ministry of Foreign Affairs through grant number 104.Dan.8.-887 “Metal accumulation and food safety in wastewater-fed aquatic production systems in Cambodia and Vietnam” and the EU-funded project “Production in Aquatic Peri-Urban Systems in South-East Asia” (PAPUSSA). Further funds were provided by the Research School of Environmental Chemistry and Ecotoxicology (RECETO) and the Faculty of Life Sciences at the University of Copenhagen, Denmark.

PY - 2008/9

Y1 - 2008/9

N2 - Untreated industrial and domestic wastewater from Hanoi city is discharged into rivers that supply water for various agricultural and aquacultural food production systems. The aim of this study was to assess the content, distribution and fate of 33 elements in the sediment and pore water of the main wastewater receiving rivers. The sediment was polluted with potentially toxic elements (PTEs) with maximum concentrations of 73 As, 427 Cd, 281 Cr, 240 Cu, 218 Ni, 363 Pb, 12.5 Sb and 1240 Zn mg kg -1 d.w. Observed distribution coefficients (log 10 K d,obs) were calculated as the ratio between sediment (mg kg -1 d.w.) and pore water (mg L -1) concentrations. Maxima log 10 K d,obs were >4.26 Cd, >6.60 Cu, 4.78 Ni, 7.01 Pb and 6.62 Zn. The high values show a strong PTE retention and indicate the importance of both sorption and precipitation as retention mechanisms. Sulphide precipitation was a likely mechanism due to highly reduced conditions.

AB - Untreated industrial and domestic wastewater from Hanoi city is discharged into rivers that supply water for various agricultural and aquacultural food production systems. The aim of this study was to assess the content, distribution and fate of 33 elements in the sediment and pore water of the main wastewater receiving rivers. The sediment was polluted with potentially toxic elements (PTEs) with maximum concentrations of 73 As, 427 Cd, 281 Cr, 240 Cu, 218 Ni, 363 Pb, 12.5 Sb and 1240 Zn mg kg -1 d.w. Observed distribution coefficients (log 10 K d,obs) were calculated as the ratio between sediment (mg kg -1 d.w.) and pore water (mg L -1) concentrations. Maxima log 10 K d,obs were >4.26 Cd, >6.60 Cu, 4.78 Ni, 7.01 Pb and 6.62 Zn. The high values show a strong PTE retention and indicate the importance of both sorption and precipitation as retention mechanisms. Sulphide precipitation was a likely mechanism due to highly reduced conditions.

KW - Former LIFE faculty

KW - Heavy metals

KW - Elements

KW - Hanoi

KW - River

KW - Sediment

U2 - 10.1016/j.envpol.2007.11.001

DO - 10.1016/j.envpol.2007.11.001

M3 - Journal article

SN - 0269-7491

VL - 155

SP - 41

EP - 51

JO - Environmental Pollution

JF - Environmental Pollution

IS - 1

ER -

Content, distribution and fate of 33 elements in sediments of rivers receiving wastewater in Hanoi, Vietnam

Abstract

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