Acid-volatile sulfide oxidation in coastal flood plain drains: Iron-sulfur cycling and effects on water quality

Edward D. Burton; Richard T. Bush; Leigh A. Sullivan

doi:10.1021/es0520058

Acid-volatile sulfide oxidation in coastal flood plain drains

Iron-sulfur cycling and effects on water quality

Edward D. Burton, Richard T. Bush, Leigh A. Sullivan

Research output: Contribution to journal › Article

91 Citations (Scopus)

Abstract

The effect of acid-volatile sulfide (AVS) oxidation on Fe-S cycling and water quality in coastal flood plain drains from acid-sulfate soil landscapes was examined using natural sediments and synthetic iron monosulfide. Oxidation of AVS occurred rapidly (half-time ≤ 1 h) and produced elemental sulfur (S₈⁰_(s)) and iron oxyhydroxide (FeOOH _(s)). The initial rapid AVS oxidation process occurred without significant acidification or changes to the aqueous-phase composition. Severe acidification (pH < 4) occurred only once S₈⁰ _(s) began to oxidize to SO₄ (within 2-3 days of the initial AVS oxidation). Our results demonstrate, for the first time with natural sediments, a significant pH-buffered (near-neutral) AVS oxidation step with the trigger to acidification being the oxidation of S₈⁰ _(s). Acidification resulted in the pH-dependent release of large amounts of Al, Mn, Ni, and Zn even though the sediment metal content was low.

Original language	English
Pages (from-to)	1217-1222
Number of pages	6
Journal	Environmental Science and Technology
Volume	40
Issue number	4
DOIs	https://doi.org/10.1021/es0520058
Publication status	Published - 2006
Externally published	Yes

Fingerprint

Cite this

Burton, E. D., Bush, R. T., & Sullivan, L. A. (2006). Acid-volatile sulfide oxidation in coastal flood plain drains: Iron-sulfur cycling and effects on water quality. Environmental Science and Technology, 40(4), 1217-1222. https://doi.org/10.1021/es0520058

@article{4dc4fe93aa8d48aead738879f22598e6,

title = "Acid-volatile sulfide oxidation in coastal flood plain drains: Iron-sulfur cycling and effects on water quality",

abstract = "The effect of acid-volatile sulfide (AVS) oxidation on Fe-S cycling and water quality in coastal flood plain drains from acid-sulfate soil landscapes was examined using natural sediments and synthetic iron monosulfide. Oxidation of AVS occurred rapidly (half-time ≤ 1 h) and produced elemental sulfur (S80(s)) and iron oxyhydroxide (FeOOH (s)). The initial rapid AVS oxidation process occurred without significant acidification or changes to the aqueous-phase composition. Severe acidification (pH < 4) occurred only once S80 (s) began to oxidize to SO4 (within 2-3 days of the initial AVS oxidation). Our results demonstrate, for the first time with natural sediments, a significant pH-buffered (near-neutral) AVS oxidation step with the trigger to acidification being the oxidation of S80 (s). Acidification resulted in the pH-dependent release of large amounts of Al, Mn, Ni, and Zn even though the sediment metal content was low.",

author = "Burton, {Edward D.} and Bush, {Richard T.} and Sullivan, {Leigh A.}",

year = "2006",

doi = "10.1021/es0520058",

language = "English",

volume = "40",

pages = "1217--1222",

journal = "Environmental Science & Technology",

issn = "0013-936X",

publisher = "American Chemical Society",

number = "4",

}

TY - JOUR

T1 - Acid-volatile sulfide oxidation in coastal flood plain drains

T2 - Iron-sulfur cycling and effects on water quality

AU - Burton, Edward D.

AU - Bush, Richard T.

AU - Sullivan, Leigh A.

PY - 2006

Y1 - 2006

N2 - The effect of acid-volatile sulfide (AVS) oxidation on Fe-S cycling and water quality in coastal flood plain drains from acid-sulfate soil landscapes was examined using natural sediments and synthetic iron monosulfide. Oxidation of AVS occurred rapidly (half-time ≤ 1 h) and produced elemental sulfur (S80(s)) and iron oxyhydroxide (FeOOH (s)). The initial rapid AVS oxidation process occurred without significant acidification or changes to the aqueous-phase composition. Severe acidification (pH < 4) occurred only once S80 (s) began to oxidize to SO4 (within 2-3 days of the initial AVS oxidation). Our results demonstrate, for the first time with natural sediments, a significant pH-buffered (near-neutral) AVS oxidation step with the trigger to acidification being the oxidation of S80 (s). Acidification resulted in the pH-dependent release of large amounts of Al, Mn, Ni, and Zn even though the sediment metal content was low.

AB - The effect of acid-volatile sulfide (AVS) oxidation on Fe-S cycling and water quality in coastal flood plain drains from acid-sulfate soil landscapes was examined using natural sediments and synthetic iron monosulfide. Oxidation of AVS occurred rapidly (half-time ≤ 1 h) and produced elemental sulfur (S80(s)) and iron oxyhydroxide (FeOOH (s)). The initial rapid AVS oxidation process occurred without significant acidification or changes to the aqueous-phase composition. Severe acidification (pH < 4) occurred only once S80 (s) began to oxidize to SO4 (within 2-3 days of the initial AVS oxidation). Our results demonstrate, for the first time with natural sediments, a significant pH-buffered (near-neutral) AVS oxidation step with the trigger to acidification being the oxidation of S80 (s). Acidification resulted in the pH-dependent release of large amounts of Al, Mn, Ni, and Zn even though the sediment metal content was low.

UR - http://www.scopus.com/inward/record.url?scp=33144486693&partnerID=8YFLogxK

U2 - 10.1021/es0520058

DO - 10.1021/es0520058

M3 - Article

VL - 40

SP - 1217

EP - 1222

JO - Environmental Science & Technology

JF - Environmental Science & Technology

SN - 0013-936X

IS - 4

ER -

Access to Document

10.1021/es0520058

Link to publication in Scopus