DOI: 10.1016/j.watres.2018.10.051
Scopus记录号: 2-s2.0-85055691066
论文题名: Fluorescent and molecular weight dependence of THM and HAA formation from intracellular algogenic organic matter (IOM)
作者: Hua L.-C. ; Chao S.-J. ; Huang C.
刊名: Water Research
ISSN: 431354
出版年: 2019
卷: 148 起始页码: 231
结束页码: 238
语种: 英语
英文关键词: Algogenic organic matter
; Chlorination
; DBPs
; Fluorescence
; Molecular weight
Scopus关键词: Algae
; Biogeochemistry
; Biological materials
; Chlorination
; Molecular weight
; Organic carbon
; DBPs
; Disinfection by-product
; Dissolved organic carbon
; Fluorescent property
; Haloacetic acids
; Membrane supports
; Soluble microbial products
; Strong dependences
; Fluorescence
; acetic acid derivative
; haloacetic acid derivative
; organic matter
; trihalomethane
; unclassified drug
; chemical compound
; chlorination
; dissolved organic carbon
; equipment
; fluorescence
; molecular analysis
; organic matter
; protein
; Article
; Chlorella
; chlorination
; disinfection
; eutrophication
; fluorescence
; Microcystis aeruginosa
; molecular weight
; nonhuman
; priority journal
; total organic carbon
; algae
; Chlorella sp.
英文摘要: This study (i) examined the formation of two major carbonaceous disinfection by-products (C-DBPs), trihalomethanes (THMs) and haloacetic acids (HAAs), during the chlorination of intracellular algogenic organic matter (IOM) extracted from two commonly blooming algae M. aeruginosa (MA) and Chlorella sp. (CH), and (ii) investigated the roles and relationships of fluorescent and molecular weight (MW) properties on/with IOM-derived THMs and HAAs. The extracted IOM samples were separated into different MW fractions by centrifugal devices with membrane support with MW cut-offs of 100, 30, 10, 3, and 1 kDa. We observed an overall reduction of C-DBPs with a decrease of IOM-MW from >100 kDa to <1 kDa. Of six fractionated IOM, a large fraction (>100 kDa) contributed the largest amount to the MW distribution of IOM, accounting for 33 and 42% of the total dissolved organic carbon (DOC) of MA and CH, respectively. It also had the highest-yielding potential to produce significant levels of THMs and HAAs, and total C-DBPs over other small MW fractions. Although small MW fractions (>10 kDa) contributed around 50% of the total DOC, they made an insignificant contribution (>20%) to the THMs, HAAs, and overall C-DBPs. Furthermore, the decrease of IOM MW caused a shift from the domination of HAA formation to THM formation, especially when MW was <10 kDa. By canonical correspondent analysis, the relationship of IOM-derived THMs and HAAs with IOM properties was examined. In particular, large fractions of IOM, exhibiting aromatic protein- (AP) and soluble microbial product- (SMP) like fluorescence, are favorable for the formation of HAAs, whereas small MW fractions of IOM with HA- and FA-like fluorescence preferentially tends to form THMs. Our findings evidently show the strong dependence of IOM-derived THMs and HAAs on the fluorescent and MW properties. Therefore, the characterization of MW and fluorescent properties can provide the advantages in the control of algae-derived DBPs upon the chlorination of eutrophic water. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122209
Appears in Collections: 气候变化事实与影响
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作者单位: Institute of Environmental Engineering, National Chiao Tung University, Hsinchu, Taiwan
Recommended Citation:
Hua L.-C.,Chao S.-J.,Huang C.. Fluorescent and molecular weight dependence of THM and HAA formation from intracellular algogenic organic matter (IOM)[J]. Water Research,2019-01-01,148