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Cho, Kyung Hwa
Water-Environmental Informatics Lab (WEIL)
Research Interests
  • Water Quality Monitoring and Modeling, Water Treatment Process Modeling

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Characterization of membrane foulants in a pilot-scale tunnel construction wastewater treatment process

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Title
Characterization of membrane foulants in a pilot-scale tunnel construction wastewater treatment process
Author
Lee, Jae-HyunKim, Jong-OhJeong, Se-UkCho, Hyun UkCho, Kyung HwaKim, Young Mo
Issue Date
2014-11
Publisher
ELSEVIER SCI LTD
Citation
BIORESOURCE TECHNOLOGY, v.171, pp.384 - 388
Abstract
A pilot-scale combination of a microfiltration (MF) and a reverse osmosis (RO) membrane system was applied on-site to treat tunnel construction wastewater. The MF membrane system initially removed contaminants (turbidity of less than 0.3 NTU) in the form of particulate materials in the feed water, thereby allowing the combined MF-RO system to efficiently remove more than 99% of known organic and inorganic contaminants and qualify the reclaimed water for reuse. The MF membrane autopsy analysis using X-ray fluorescence (XRF) and inductively coupled plasma-mass spectrometry (ICP-MS) revealed that the dominant foulants were inorganic deposits involving Si, Al and Fe, comprising the main components of cement materials, as well as deposits involving heavy metals such as Mn, Cu and Zn in the form of particles. Thus, thick cake contaminants shown by field emission scanning electron microscope (FE-SEM) images might be induced via suspended solids consisting of cement and clay materials and metals
URI
https://scholarworks.unist.ac.kr/handle/201301/8892
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84908619613
DOI
10.1016/j.biortech.2014.08.107
ISSN
0960-8524
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