Show simple item record

dc.contributor.authorLee, Songbok
dc.contributor.authorKim, Youngjin
dc.contributor.authorPark, Jungmi
dc.contributor.authorShon, Ho Kyong
dc.contributor.authorHong, Seungkwan
dc.date.accessioned2018-04-16T11:27:45Z
dc.date.available2018-04-16T11:27:45Z
dc.date.issued2018-04-07
dc.identifier.citationLee S, Kim Y, Park J, Shon HK, Hong S (2018) Treatment of Medical Radioactive Liquid Waste Using Forward Osmosis (FO) Membrane Process. Journal of Membrane Science. Available: http://dx.doi.org/10.1016/j.memsci.2018.04.008.
dc.identifier.issn0376-7388
dc.identifier.doi10.1016/j.memsci.2018.04.008
dc.identifier.urihttp://hdl.handle.net/10754/627549
dc.description.abstractThe use of forward osmosis (FO) for concentrating radioactive liquid waste from radiation therapy rooms in hospitals was systematically investigated in this study. The removal of natural and radioactive iodine using FO was first investigated with varying pHs and draw solutions (DSs) to identify the optimal conditions for FO concentration. Results showed that FO had a successful rejection rate for both natural and radioactive iodine (125I) of up to 99.3%. This high rejection rate was achieved at a high pH, mainly due to electric repulsion between iodine and membrane. Higher iodine removal by FO was also attained with a DS that exhibits a reverse salt flux (RSF) adequate to hinder iodine transport. Following this, actual radioactive medical liquid waste was collected and concentrated using FO under these optimal conditions. The radionuclides in the medical waste (131I) were removed effectively, but the water recovery rate was limited due to severe membrane fouling. To enhance the recovery rate, hydraulic washing was applied, but this had only limited success due to combined organic-inorganic fouling of the FO membrane. Finally, the effect of FO concentration on the reduction of septic tank volume was simulated as a function of recovery rate. To our knowledge, this study is the first attempt to explore the potential of FO technology for treating radioactive waste, and thus could be expanded to the dewatering of the radioactive liquid wastes from a variety of sources, such as nuclear power plants.
dc.description.sponsorshipThis work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korean government(MSIP:Ministry of Science, ICT) (No. 2017M2B2A9072516)
dc.publisherElsevier BV
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S037673881830259X
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Journal of Membrane Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Membrane Science, 7 April 2018. DOI: 10.1016/j.memsci.2018.04.008. © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectForward osmosis
dc.subjectRadioactive liquid waste
dc.subjectWastewater treatment
dc.subjectMembrane fouling
dc.subjectRadioactive iodine
dc.titleTreatment of Medical Radioactive Liquid Waste Using Forward Osmosis (FO) Membrane Process
dc.typeArticle
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.identifier.journalJournal of Membrane Science
dc.eprint.versionPost-print
dc.contributor.institutionSchool of Civil, Environmental and Architectural Engineering, Korea University, 145 Anam-ro, Seongbuk-Gu, Seoul 02841, Republic of Korea
dc.contributor.institutionSoonchunhyang University Hospital, 170 Jomaru-ro, Wonmi-gu, Bucheon City, Gyeonggi-do 14584, Republic of Korea
dc.contributor.institutionCentre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney (UTS), Post Box 129, Broadway, NSW 2007, Australia
kaust.personKim, Youngjin
refterms.dateFOA2020-04-07T00:00:00Z
dc.date.published-online2018-04-07
dc.date.published-print2018-06


Files in this item

Thumbnail
Name:
1-s2.0-S037673881830259X-main.pdf
Size:
3.319Mb
Format:
PDF
Description:
Accepted Manuscript
Thumbnail
Name:
mmc1.docx
Size:
393.5Kb
Format:
Microsoft Word 2007
Description:
Supplemental files
Thumbnail
Name:
1-s2.0-S037673881830259X-fx1.jpg
Size:
53.27Kb
Format:
JPEG image
Description:
Graphical abstract

This item appears in the following Collection(s)

Show simple item record