DOI: 10.1016/j.marpolbul.2017.11.032
Scopus记录号: 2-s2.0-85034258691
论文题名: Desorption modeling of hydrophobic organic chemicals from plastic sheets using experimentally determined diffusion coefficients in plastics
作者: Lee H. ; Byun D.-E. ; Kim J.M. ; Kwon J.-H.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2018
卷: 126 起始页码: 312
结束页码: 317
语种: 英语
英文关键词: Bioavailability
; Biot number
; Diffusion coefficient
; Partition coefficient
; Polyethylene
; Polypropylene
Scopus关键词: Biochemistry
; Boundary layers
; Desorption
; Diffusion
; Hydrophobicity
; Industrial chemicals
; Mass transfer
; Plastic films
; Plastic sheets
; Polyethylenes
; Polypropylenes
; Bioavailability
; Biot number
; Chlorinated benzenes
; Desorption models
; Hexachlorocyclohexanes
; Hydrophobic organic chemicals
; Model simulation
; Partition coefficient
; Organic chemicals
; alpha hexachlorocyclohexane
; benzene
; beta hexachlorocyclohexane
; chlorine
; delta hexachlorocyclohexane
; hexachlorobenzene
; hexachlorocyclohexane
; hydrophobic organic chemical
; lindane
; organic compound
; pentachlorobenzene
; plastic
; polyethylene
; polypropylene
; unclassified drug
; water
; bioavailability
; boundary layer
; chemical pollutant
; desorption
; diffusion
; experimental study
; hydrophobicity
; organic matter
; partition coefficient
; plastic
; pollutant transport
; Article
; chlorination
; controlled study
; desorption
; diffusion
; diffusion coefficient
; half life time
; hydrophobicity
; thickness
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: To evaluate rate of migration from plastic debris, desorption of model hydrophobic organic chemicals (HOCs) from polyethylene (PE)/polypropylene (PP) films to water was measured using PE/PP films homogeneously loaded with the HOCs. The HOCs fractions remaining in the PE/PP films were compared with those predicted using a model characterized by the mass transfer Biot number. The experimental data agreed with the model simulation, indicating that HOCs desorption from plastic particles can generally be described by the model. For hexachlorocyclohexanes with lower plastic-water partition coefficients, desorption was dominated by diffusion in the plastic film, whereas desorption of chlorinated benzenes with higher partition coefficients was determined by diffusion in the aqueous boundary layer. Evaluation of the fraction of HOCs remaining in plastic films with respect to film thickness and desorption time showed that the partition coefficient between plastic and water is the most important parameter influencing the desorption half-life. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88576
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: Division of Environmental Science and Ecological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, South Korea; Department of Energy Systems Research, Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon, South Korea; Department of Chemical Engineering, Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon, South Korea
Recommended Citation:
Lee H.,Byun D.-E.,Kim J.M.,et al. Desorption modeling of hydrophobic organic chemicals from plastic sheets using experimentally determined diffusion coefficients in plastics[J]. Marine Pollution Bulletin,2018-01-01,126