Systematic characterization of selenium speciation in coal fly ash

Garcia, Estefania; Liu, Pan; Bone, Sharon E.; Wen, Yinghao; Tang, Yuanzhi

doi:10.1039/d4em00398e

Systematic characterization of selenium speciation in coal fly ash

Journal Article · Mon Oct 21 00:00:00 EDT 2024 · Environmental Science: Processes & Impacts

DOI:https://doi.org/10.1039/d4em00398e· OSTI ID:2476068

Garcia, Estefania ^[1]; Liu, Pan ^[1]; ^[2]; ^[1]; ^[1]

Georgia Institute of Technology, Atlanta, GA (United States)
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL)

Millions of tons of coal fly ashes (CFAs) are produced annually during coal combustion in the U.S., which are commonly beneficially used in the concrete industry or disposed of in ash ponds. CFAs contain trace amounts of a range of toxic heavy metals including selenium (Se). Because the toxicity of Se is dependent on its speciation, investigating Se speciation in CFAs as affected by coal source and combustion conditions can help understand the related environmental and human health impacts during disposal or beneficial reuse. In this study, a set of representative CFA samples were characterized for Se speciation using synchrotron X-ray absorption spectroscopy (XAS) and micro-X-ray fluorescence spectromicroscopy (μ-XRF/XAS). Se-containing particles were highly heterogeneous, and individual particles might contain multiple oxidation states including Se(0), Se(IV), and Se(VI). Principal component analysis was performed for sample characteristics including Al₂O₃, SiO₂, CaO, FeO, loss on ignition, average particle size, Se concentration, and Se oxidation state. Selective catalytic reduction (SCR), which is used to limit nitrogen oxide (NO_x) emissions during coal combustion, was found to be associated with the presence of reduced Se oxidation states, with up to 90% Se(0) observed in samples with SCR. Alongside SCR, FeO content may also influence Se speciation.

View Journal Article

Research Organization:: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

Sponsoring Organization:: National Science Foundation (NSF); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)

Grant/Contract Number:: AC02-06CH11357; AC02-76SF00515; FE0031739; SC0012704

OSTI ID:: 2476068

Alternate ID(s):: OSTI ID: 2575058
OSTI ID: 2584782

Journal Information:: Environmental Science: Processes & Impacts, Journal Name: Environmental Science: Processes & Impacts Journal Issue: 12 Vol. 26; ISSN 2050-7887; ISSN 2050-7895

Publisher:: Royal Society of Chemistry (RSC)Copyright Statement

Country of Publication:: United States

Language:: English

References (39)

Arsenic, selenium, and chromium speciation in fly ash Itaya, Yuki; Kuninishi, Kenji; Hashimoto, Yohey Journal of Material Cycles and Waste Management, Vol. 24, Issue 1 https://doi.org/10.1007/s10163-021-01316-2	journal	October 2021
Characterization of fly ash from Kentucky power plants Hower, James C.; Robertson, J. David; Thomas, Gerald A. Fuel, Vol. 75, Issue 4 https://doi.org/10.1016/0016-2361(95)00278-2	journal	March 1996
Particle size-density relation and cenosphere content of coal fly ash Ghosal, Sarbajit; Self, Sidney A. Fuel, Vol. 74, Issue 4 https://doi.org/10.1016/0016-2361(95)98354-H	journal	April 1995
Speciation of arsenic and chromium in coal and combustion ash by XAFS spectroscopy Huffman, Gerald P.; Huggins, Frank E.; Shah, Naresh Fuel Processing Technology, Vol. 39, Issue 1-3 https://doi.org/10.1016/0378-3820(94)90171-6	journal	August 1994
Bacterial reduction of selenite to elemental selenium Garbisu, Carlos; Ishii, Takahisa; Leighton, Terrance Chemical Geology, Vol. 132, Issue 1-4 https://doi.org/10.1016/S0009-2541(96)00056-3	journal	October 1996
Symptoms and implications of selenium toxicity in fish: the Belews Lake case example Lemly, A. Dennis Aquatic Toxicology, Vol. 57, Issue 1-2 https://doi.org/10.1016/S0166-445X(01)00264-8	journal	April 2002
Selenium in volcanic environments: A review Floor, Geerke H.; Román-Ross, Gabriela Applied Geochemistry, Vol. 27, Issue 3 https://doi.org/10.1016/j.apgeochem.2011.11.010	journal	March 2012
Leaching potential and redox transformations of arsenic and selenium in sediment microcosms with fly ash Schwartz, Grace E.; Rivera, Nelson; Lee, Sung-Woo Applied Geochemistry, Vol. 67 https://doi.org/10.1016/j.apgeochem.2016.02.013	journal	April 2016
A survey study on arsenic speciation in coal fly ash and insights into the role of coal combustion conditions Garcia, Estefania; Liu, Pan; Sanchez, Jose Applied Geochemistry, Vol. 170 https://doi.org/10.1016/j.apgeochem.2024.106095	journal	September 2024
Reviews on atmospheric selenium: Emissions, speciation and fate Wen, Hanjie; Carignan, Jean Atmospheric Environment, Vol. 41, Issue 34 https://doi.org/10.1016/j.atmosenv.2007.07.035	journal	November 2007
Using particle composition of fly ash to predict concrete strength and electrical resistivity Kim, Taehwan; Ley, M. Tyler; Kang, Shinhyu Cement and Concrete Composites, Vol. 107 https://doi.org/10.1016/j.cemconcomp.2019.103493	journal	March 2020
Speciation of As, Cr, Se and Hg under coal fired power station conditions Shah, Pushan; Strezov, Vladimir; Prince, Kathryn Fuel, Vol. 87, Issue 10-11 https://doi.org/10.1016/j.fuel.2007.12.001	journal	August 2008
A novel process for recovering aluminum and silicon from fly ash in cryolite molten salt Tao, Wenju; Yang, Jiaxin; Liu, Zhibo Journal of Cleaner Production, Vol. 375 https://doi.org/10.1016/j.jclepro.2022.134170	journal	November 2022
Remediation of selenium-contaminated soil through combined use of earthworm Eisenia fetida and organic materials Gan, Xinyu; Huang, Jung-Chen; Zhang, Manping Journal of Hazardous Materials, Vol. 405 https://doi.org/10.1016/j.jhazmat.2020.124212	journal	March 2021
Regimes of association of arsenic and selenium during pulverized coal combustion Seames, Wayne S.; Wendt, Jost O. L. Proceedings of the Combustion Institute, Vol. 31, Issue 2 https://doi.org/10.1016/j.proci.2006.08.066	journal	January 2007
Trace element risk assessment: essentiality vs. toxicity Goldhaber, Susan B. Regulatory Toxicology and Pharmacology, Vol. 38, Issue 2 https://doi.org/10.1016/s0273-2300(02)00020-x	journal	October 2003
Rietveld quantitative X-ray diffraction analysis of NIST fly ash standard reference materials Winburn, Ryan S.; Grier, Dean G.; McCarthy, Gregory J. Powder Diffraction, Vol. 15, Issue 3 https://doi.org/10.1017/S0885715600011015	journal	September 2000
Experimental and Density Functional Theory Study of the Adsorption Characteristics of CaO for SeO₂ in Simulated Flue Gas and the Effect of CO₂ Yuan, Changle; Zhang, Cheng; Yu, Shenghui Energy & Fuels, Vol. 34, Issue 9 https://doi.org/10.1021/acs.energyfuels.0c02044	journal	July 2020
Speciation, Distribution, and Mobility of Hazardous Trace Elements in Coal Fly Ash: Insights from Cr, Ni, and Cu Liu, Pan; Wang, Qian; Jung, Haesung Energy & Fuels, Vol. 34, Issue 11 https://doi.org/10.1021/acs.energyfuels.0c02164	journal	October 2020
Chemical Speciation of Potentially Toxic Trace Metals in Coal Fly Ash Associated with the Kingston Fly Ash Spill Rivera, Nelson; Hesterberg, Dean; Kaur, Navdeep Energy & Fuels, Vol. 31, Issue 9 https://doi.org/10.1021/acs.energyfuels.7b00020	journal	August 2017
Environmental Impacts of Coal Combustion Residuals: Current Understanding and Future Perspectives Deonarine, Amrika; Schwartz, Grace E.; Ruhl, Laura S. Environmental Science & Technology, Vol. 57, Issue 5 https://doi.org/10.1021/acs.est.2c06094	journal	January 2023
Green Approach for Rare Earth Element (REE) Recovery from Coal Fly Ash Liu, Pan; Zhao, Simin; Xie, Nan Environmental Science & Technology, Vol. 57, Issue 13 https://doi.org/10.1021/acs.est.2c09273	journal	March 2023
Comprehensive Understandings of Rare Earth Element (REE) Speciation in Coal Fly Ashes and Implication for REE Extractability Liu, Pan; Huang, Rixiang; Tang, Yuanzhi Environmental Science & Technology, Vol. 53, Issue 9 https://doi.org/10.1021/acs.est.9b00005	journal	March 2019
Determination of Chemical Speciation of Arsenic and Selenium in High-As Coal Combustion Ash by X-ray Photoelectron Spectroscopy: Examples from a Kentucky Stoker Ash Fu, Biao; Hower, James C.; Dai, Shifeng ACS Omega, Vol. 3, Issue 12 https://doi.org/10.1021/acsomega.8b02929	journal	December 2018
Speciation of Arsenic and Selenium in Coal Combustion Products Shah, Pushan; Strezov, Vladimir; Stevanov, Chris Energy & Fuels, Vol. 21, Issue 2 https://doi.org/10.1021/ef0604083	journal	November 2006
Speciation of Selenium, Arsenic, and Zinc in Class C Fly Ash Luo, Yun; Giammar, Daniel E.; Huhmann, Brittany L. Energy & Fuels, Vol. 25, Issue 7 https://doi.org/10.1021/ef2005496	journal	July 2011
Selenium and Arsenic Speciation in Fly Ash from Full-Scale Coal-Burning Utility Plants Huggins, Frank E.; Senior, Constance L.; Chu, Paul Environmental Science & Technology, Vol. 41, Issue 9 https://doi.org/10.1021/es062069y	journal	April 2007
Environmental Selenium Research: From Microscopic Processes to Global Understanding Winkel, Lenny H. E.; Johnson, C. Annette; Lenz, Markus Environmental Science & Technology, Vol. 46, Issue 2 https://doi.org/10.1021/es203434d	journal	December 2011
A global atmospheric selenium budget Mosher, Byard W.; Duce, Robert A. Journal of Geophysical Research: Atmospheres, Vol. 92, Issue D11 https://doi.org/10.1029/JD092iD11p13289	journal	November 1987
Selenium isotope evidence for progressive oxidation of the Neoproterozoic biosphere Pogge von Strandmann, Philip A. E.; Stüeken, Eva E.; Elliott, Tim Nature Communications, Vol. 6, Issue 1 https://doi.org/10.1038/ncomms10157	journal	December 2015
Investigation on chemical species of arsenic, selenium and antimony in fly ash from coal fuel thermal power stations Narukawa, Tomohiro; Takatsu, Akiko; Chiba, Koichi Journal of Environmental Monitoring, Vol. 7, Issue 12 https://doi.org/10.1039/B509817C	journal	January 2005
XAS studies of Se speciation in selenite-fed rats Weekley, Claire M.; Aitken, Jade B.; Witting, Paul K. Metallomics, Vol. 6, Issue 12 https://doi.org/10.1039/c4mt00227j	journal	January 2014
The MicroAnalysis Toolkit: X-ray Fluorescence Image Processing Software Webb, S. M.; McNulty, Ian; Eyberger, Catherine THE 10TH INTERNATIONAL CONFERENCE ON X-RAY MICROSCOPY, AIP Conference Proceedings https://doi.org/10.1063/1.3625338	conference	January 2011
Ranking Coal Ash Materials for Their Potential to Leach Arsenic and Selenium: Relative Importance of Ash Chemistry and Site Biogeochemistry Schwartz, Grace E.; Hower, James C.; Phillips, Allison L. Environmental Engineering Science, Vol. 35, Issue 7 https://doi.org/10.1089/ees.2017.0347	journal	July 2018
Microbial selenium metabolism: a brief history, biogeochemistry and ecophysiology Wells, Michael; Stolz, John F. FEMS Microbiology Ecology, Vol. 96, Issue 12 https://doi.org/10.1093/femsec/fiaa209	journal	October 2020
ATHENA , ARTEMIS , HEPHAESTUS : data analysis for X-ray absorption spectroscopy using IFEFFIT Ravel, B.; Newville, M. Journal of Synchrotron Radiation, Vol. 12, Issue 4 https://doi.org/10.1107/S0909049505012719	journal	June 2005
SIXPack a Graphical User Interface for XAS Analysis Using IFEFFIT Webb, S. M. Physica Scripta https://doi.org/10.1238/Physica.Topical.115a01011	journal	January 2005
Current Knowledge on the Importance of Selenium in Food for Living Organisms: A Review Kieliszek, Marek; Błażejak, Stanisław Molecules, Vol. 21, Issue 5 https://doi.org/10.3390/molecules21050609	journal	May 2016
Mineralogy and Leaching Characteristics of Coal Ash from a Major Brazilian Power Plant Silva, Luis; Ward, Colin; Hower, James Coal Combustion and Gasification Products, Vol. 2, Issue 1 https://doi.org/10.4177/CCGP-D-10-00005.1	journal	January 2010

Similar Records

Elucidating Arsenic and Selenium Speciation in Coal Fly Ashes

Technical Report · Fri Sep 30 00:00:00 EDT 2022 · OSTI ID:1890398

Systematic characterization of selenium speciation in coal fly ash

Citation Formats

References (39)

Similar Records

Related Subjects