A Laboratory Study on the Filtration and Clogging of the Sand-Bottom AshMixture for Stormwater Infiltration Filter Media

Collection with item attached
2017
Item details URL
http://open-repository.kisti.re.kr/cube/handle/open_repository/473676.do
DOI
10.3390/w9010032
Title
A Laboratory Study on the Filtration and Clogging of the Sand-Bottom AshMixture for Stormwater Infiltration Filter Media
Description
This work was supported by the research grant of the Kongju NationalUniversity in 2015.
abstract
The performance of stormwater infiltration systems depends significantly on the infiltration/filtration characteristics of filter media. Sand media have been frequently used due to their abundance and acceptable pollutant removal efficiency. Bottom ash media, which was known to have a high sorption capacity, are being considered as alternative and/or complement filter media to enhance the overall treatment efficiency. To verify the applicability of bottom ash as filter media, a series of 1-D column infiltration tests were conducted in this study. The filtration and clogging characteristics of the sand-bottom ash mixtures at different mixing ratios were investigated with limitedly focusing on the Total Suspended Solids (TSS) present in stormwater runoff. As a result, the presence of bottom ash was identified to improve the TSS removal efficiency in spite of having a significant increase in clogging potential. All media configurations were observed to experience the premature clogging and the clogging state for varying and constant head flow conditions, respectively. The noticeable amount of crushed bottom ash particles brought by seepage force could be accountable for the rapid occurrence of clogging phenomena. Overall, a homogeneous sand filter is preferred as long as the lifespan of filter system is the primary concern.
provenance
Made available in Cube on 2018-09-28T10:25:56Z (GMT). No. of bitstreams: 0
language
English
author
Segismundo, Ezequiel Q.
Kim, Lee-Hyung
Jeong, Sang-Man
Lee, Byung-Sik
accessioned
2018-09-28T10:25:56Z
available
2018-09-28T10:25:56Z
issued
2017
citation
Water(9): 1
issn
2073-4441
uri
http://open-repository.kisti.re.kr/cube/handle/open_repository/473676.do
Funder
교육부
Funding Program
BK21플러스사업(0.5)
Project ID
1345274165
Jurisdiction
Rep.of Korea
Project Name
LID/GI center for NPS control and disaster prevention
rights
openAccess
subject
infiltration
stormwater management
physical clogging
sand-bottom ashfilter
type
article


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