Transport of molybdenum in a biosolid-amended alkaline soil

Kenneth C. Carroll; Janick F. Artiola; Mark L. Brusseau

doi:10.1016/j.chemosphere.2006.03.044

Transport of molybdenum in a biosolid-amended alkaline soil

Kenneth C. Carroll, Janick F. Artiola, Mark L. Brusseau

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

25 Scopus citations

Abstract

The transport of molybdenum (Mo) in a biosolid-amended, alkaline, agricultural soil was examined in the research reported herein. Batch-equilibrium and miscible-displacement experiments were conducted to examine the transport of Mo in soil with and without 10% by weight biosolid amendment. The results of geochemical modeling, conducted using PHREEQC, indicated that no mineral dissolution or precipitation reactions were expected for the system under the prevailing conditions. Sorption equilibrium coefficients (K_d) obtained from moment analysis of the Mo breakthrough curves were similar to those calculated from the results of the batch-equilibrium experiments. Mo sorption was greater for the biosolid-amended soil (K_d of 1.3 versus 0.35). Sorption of Mo was shown to be linear, rate limited, and reversible for both unamended and amended soil. The results suggest that Mo associated with biosolid-amended soils is relatively bioavailable and mobile.

Original language	English (US)
Pages (from-to)	778-785
Number of pages	8
Journal	Chemosphere
Volume	65
Issue number	5
DOIs	https://doi.org/10.1016/j.chemosphere.2006.03.044
State	Published - Oct 2006

Keywords

Column
Isotherm
Modeling
Sorption

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
General Chemistry
Pollution
Health, Toxicology and Mutagenesis

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10.1016/j.chemosphere.2006.03.044

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title = "Transport of molybdenum in a biosolid-amended alkaline soil",

abstract = "The transport of molybdenum (Mo) in a biosolid-amended, alkaline, agricultural soil was examined in the research reported herein. Batch-equilibrium and miscible-displacement experiments were conducted to examine the transport of Mo in soil with and without 10% by weight biosolid amendment. The results of geochemical modeling, conducted using PHREEQC, indicated that no mineral dissolution or precipitation reactions were expected for the system under the prevailing conditions. Sorption equilibrium coefficients (Kd) obtained from moment analysis of the Mo breakthrough curves were similar to those calculated from the results of the batch-equilibrium experiments. Mo sorption was greater for the biosolid-amended soil (Kd of 1.3 versus 0.35). Sorption of Mo was shown to be linear, rate limited, and reversible for both unamended and amended soil. The results suggest that Mo associated with biosolid-amended soils is relatively bioavailable and mobile.",

keywords = "Column, Isotherm, Modeling, Sorption",

author = "Carroll, {Kenneth C.} and Artiola, {Janick F.} and Brusseau, {Mark L.}",

note = "Funding Information: We would like to thank the USDA Cooperative State Research and Extension Service and NIEHS Superfund Basic Research Program for their support of this project, and Atasi Ray-Maitra for chemical analysis of the molybdenum and bromide samples. ",

year = "2006",

month = oct,

doi = "10.1016/j.chemosphere.2006.03.044",

language = "English (US)",

volume = "65",

pages = "778--785",

journal = "Chemosphere",

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T1 - Transport of molybdenum in a biosolid-amended alkaline soil

AU - Carroll, Kenneth C.

AU - Artiola, Janick F.

AU - Brusseau, Mark L.

N1 - Funding Information: We would like to thank the USDA Cooperative State Research and Extension Service and NIEHS Superfund Basic Research Program for their support of this project, and Atasi Ray-Maitra for chemical analysis of the molybdenum and bromide samples.

PY - 2006/10

Y1 - 2006/10

N2 - The transport of molybdenum (Mo) in a biosolid-amended, alkaline, agricultural soil was examined in the research reported herein. Batch-equilibrium and miscible-displacement experiments were conducted to examine the transport of Mo in soil with and without 10% by weight biosolid amendment. The results of geochemical modeling, conducted using PHREEQC, indicated that no mineral dissolution or precipitation reactions were expected for the system under the prevailing conditions. Sorption equilibrium coefficients (Kd) obtained from moment analysis of the Mo breakthrough curves were similar to those calculated from the results of the batch-equilibrium experiments. Mo sorption was greater for the biosolid-amended soil (Kd of 1.3 versus 0.35). Sorption of Mo was shown to be linear, rate limited, and reversible for both unamended and amended soil. The results suggest that Mo associated with biosolid-amended soils is relatively bioavailable and mobile.

AB - The transport of molybdenum (Mo) in a biosolid-amended, alkaline, agricultural soil was examined in the research reported herein. Batch-equilibrium and miscible-displacement experiments were conducted to examine the transport of Mo in soil with and without 10% by weight biosolid amendment. The results of geochemical modeling, conducted using PHREEQC, indicated that no mineral dissolution or precipitation reactions were expected for the system under the prevailing conditions. Sorption equilibrium coefficients (Kd) obtained from moment analysis of the Mo breakthrough curves were similar to those calculated from the results of the batch-equilibrium experiments. Mo sorption was greater for the biosolid-amended soil (Kd of 1.3 versus 0.35). Sorption of Mo was shown to be linear, rate limited, and reversible for both unamended and amended soil. The results suggest that Mo associated with biosolid-amended soils is relatively bioavailable and mobile.

KW - Column

KW - Isotherm

KW - Modeling

KW - Sorption

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SN - 0045-6535

VL - 65

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EP - 785

JO - Chemosphere

JF - Chemosphere

IS - 5

ER -

Transport of molybdenum in a biosolid-amended alkaline soil

Abstract

Keywords

ASJC Scopus subject areas

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