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Title: Evaluation of the effects of coal fly ash amendments on the toxicity of a contaminated marine sediment

Abstract

Approaches for cleaning up contaminated sediments range from dredging to in situ treatment. In this study, we discuss the effects of amending reference and contaminated sediments with coal fly ash to reduce the bioavailability and toxicity of a field sediment contaminated with polycyclic aromatic hydrocarbons (PAHs). Six fly ashes and a coconut charcoal were evaluated in 7-d whole sediment toxicity tests with a marine amphipod (Ampelisca abdita) and mysid (Americamysis bahia). Fly ashes with high carbon content and the coconut charcoal showed proficiency at reducing toxicity. Some of the fly ashes demonstrated toxicity in the reference treatments. It is suspected that some of this toxicity is related to the presence of ammonia associated with fly ashes as a result of postoxidation treatment to reduce nitrous oxide emissions. Relatively simple methods exist to remove ammonia from fly ash before use, and fly ashes with low ammonia content are available. Fly ashes were also shown to effectively reduce overlying water concentrations of several PAHs. No evidence was seen of the release of the metals cadmium, copper, nickel, or lead from the fly ashes. A preliminary 28-d polychaete bioaccumulation study with one of the high-carbon fly ashes and a reference sediment was alsomore » performed. Although preliminary, no evidence was seen of adverse effects to worm growth or lipid content or of accumulation of PAHs or mercury from exposure to the fly ash. These data show fly ashes with high carbon content could represent viable remedial materials for reducing the bioavailability of organic contaminants in sediments.« less

Authors:
; ; ; ; ; ; ; ; ;  [1]
  1. US EPA, Narragansett, RI (USA). Office for Research and Development
Publication Date:
OSTI Identifier:
21149652
Resource Type:
Journal Article
Journal Name:
Environmental Toxicology and Chemistry
Additional Journal Information:
Journal Volume: 28; Journal Issue: 1; Journal ID: ISSN 0730-7268
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; FLY ASH; COAL; SEDIMENTS; CONTAMINATION; REMEDIAL ACTION; WASTE PRODUCT UTILIZATION; POLYCYCLIC AROMATIC HYDROCARBONS; DECONTAMINATION; TOXICITY; AMMONIA; BIOLOGICAL ACCUMULATION; NEMATODES

Citation Formats

Burgess, R M, Perron, M M, Friedman, C L, Suuberg, E M, Pennell, K G, Cantwell, M G, Pelletier, M C, Ho, K T, Serbst, J R, and Ryba, S A. Evaluation of the effects of coal fly ash amendments on the toxicity of a contaminated marine sediment. United States: N. p., 2009. Web. doi:10.1897/08-050.1.
Burgess, R M, Perron, M M, Friedman, C L, Suuberg, E M, Pennell, K G, Cantwell, M G, Pelletier, M C, Ho, K T, Serbst, J R, & Ryba, S A. Evaluation of the effects of coal fly ash amendments on the toxicity of a contaminated marine sediment. United States. https://doi.org/10.1897/08-050.1
Burgess, R M, Perron, M M, Friedman, C L, Suuberg, E M, Pennell, K G, Cantwell, M G, Pelletier, M C, Ho, K T, Serbst, J R, and Ryba, S A. 2009. "Evaluation of the effects of coal fly ash amendments on the toxicity of a contaminated marine sediment". United States. https://doi.org/10.1897/08-050.1.
@article{osti_21149652,
title = {Evaluation of the effects of coal fly ash amendments on the toxicity of a contaminated marine sediment},
author = {Burgess, R M and Perron, M M and Friedman, C L and Suuberg, E M and Pennell, K G and Cantwell, M G and Pelletier, M C and Ho, K T and Serbst, J R and Ryba, S A},
abstractNote = {Approaches for cleaning up contaminated sediments range from dredging to in situ treatment. In this study, we discuss the effects of amending reference and contaminated sediments with coal fly ash to reduce the bioavailability and toxicity of a field sediment contaminated with polycyclic aromatic hydrocarbons (PAHs). Six fly ashes and a coconut charcoal were evaluated in 7-d whole sediment toxicity tests with a marine amphipod (Ampelisca abdita) and mysid (Americamysis bahia). Fly ashes with high carbon content and the coconut charcoal showed proficiency at reducing toxicity. Some of the fly ashes demonstrated toxicity in the reference treatments. It is suspected that some of this toxicity is related to the presence of ammonia associated with fly ashes as a result of postoxidation treatment to reduce nitrous oxide emissions. Relatively simple methods exist to remove ammonia from fly ash before use, and fly ashes with low ammonia content are available. Fly ashes were also shown to effectively reduce overlying water concentrations of several PAHs. No evidence was seen of the release of the metals cadmium, copper, nickel, or lead from the fly ashes. A preliminary 28-d polychaete bioaccumulation study with one of the high-carbon fly ashes and a reference sediment was also performed. Although preliminary, no evidence was seen of adverse effects to worm growth or lipid content or of accumulation of PAHs or mercury from exposure to the fly ash. These data show fly ashes with high carbon content could represent viable remedial materials for reducing the bioavailability of organic contaminants in sediments.},
doi = {10.1897/08-050.1},
url = {https://www.osti.gov/biblio/21149652}, journal = {Environmental Toxicology and Chemistry},
issn = {0730-7268},
number = 1,
volume = 28,
place = {United States},
year = {Thu Jan 15 00:00:00 EST 2009},
month = {Thu Jan 15 00:00:00 EST 2009}
}