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ID 30486
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title alternative
Removal of Hydrogen Sulfide Using Granulated Coal Ash <Original Paper>
creator
Hayakawa, Shinjiro
subject
adsorption
enclosed water body
coal ash
hydrogen sulfide
sediment
NDC
Construction. Civil engineering
abstract
Hydrogen sulfide is highly toxic and fatal to benthic organisms. It also depletes dissolved oxygen and generates blue tide when oxidized. Therefore, it should be controlled to maintain healthy ecosystems. The purpose of this study is to evaluate the removal of hydrogen sulfide from seawater using granulated coal ash produced from coal thermal electric power stations. The batch experiments revealed that the removal kinetics of hydrogen sulfide were expressed as a first-order rate equation and that the adsorption maximum of hydrogen sulfide was 108 mg-S · g-1. The K-edge X-ray adsorption fine structure spectra of sulfur adsorbed by granulated coal ash indicated that hydrogen sulfide was adsorbed as sulfur and formed FeS2 when the hydrogen sulfide concentration was high. Results imply that applying granulated coal ash to organically enriched sediment can effectively reduce the concentration of hydrogen sulfide in interstitial water.
journal title
水環境学会誌
volume
Volume 32
issue
Issue 7
start page
363
end page
368
date of issued
2009-07-10
publisher
日本水環境学会
issn
0916-8958
ncid
publisher doi
language
jpn
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2010 社団法人 日本水環境学会
本文データはJ-STAGEから複製したものである
relation url
department
Graduate School of Engineering