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Removal of phenanthrene from coastal waters by green tide algae Ulva prolifera
作者: Zhang, Cui1,2; Lu Jian(吕剑)1,2; Wu, Jun2,3; Luo, Yongming1
ISSN号: 0048-9697
出版日期: 2017-12-31
卷号: 609, 页码:1322-1328
关键词: Ulva prolifera ; Green tide ; Phenanthrene ; Natural attenuation ; Phytoremediation ; Seawater
DOI: 10.1016/j.scitotenv.2017.07.187
产权排序: 第1完成单位
通讯作者: Lu, Jian(Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China)
英文摘要: Ulva prolifera (U. prolifera) has been frequently involved in terrible algal proliferation in coastal areas. Although it is known to be associated with green tide, its contribution to the natural attenuation of the polycyclic aromatic hydrocarbons (PAHs) in seawater has not been evaluated. In this study, the removal of phenanthrene using U. prolifera collected from coastal water with green tide blooming was investigated. The results showed that phenanthrene could be removed efficiently in the presence of both the live and heat-killed U. prolifera. The phenanthrene concentrations of the live algae treatment decreased smoothly from 10.00 to 0.80 mu g L-1 through the whole process, while those of the heat-killed algae treatment decreased sharply from 10.0 to 2.71 mu g L-1 in one day and kept constantly after that. The in situ monitoring and visualizing using laser confocal scanning microscopy (LCSM) confirmed the accumulation of phenanthrene in U. prolifera. The increase in nutrient and temperature led to the increase of phenanthrene removal rate, while the salinity had less influence on the removal of phenanthrene. The removal efficiency by U. prolifera had a good linear relationship with phenanthrene initial concentration (r(2) = 0.999) even at 100 mu g L-1 which was higher than its environmentally relevant concentrations. High removal efficiency (91.3%) was observed when the initial phenanthrene concentration was set at environmental relevant concentration (5 mu g L-1). Results of this study demonstrate a potential new natural attenuation process for typical PAHs in coastal water during the outbreak of green tide. These findings indicate that the outbreak of harmful green tide algae may bring positive environmental benefits in the terms of the removal of harmful organic pollutants from coastal waters. (C) 2017 Elsevier B.V. All rights reserved.
研究领域[WOS]: Environmental Sciences & Ecology
项目资助者: One Hundred-Talent Plan of Chinese Academy of Sciences(Y629041021, Y610061033) ; National Natural Science Foundation of China(41671319) ; Two-Hundred Talents Plan of Yantai(Y739011021) ; Research Program of CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation(1189010002)
文章类型: Article
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000410352900136
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内容类型: 期刊论文
Appears in Collections:中科院海岸带环境过程与生态修复重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Qinghai, Peoples R China

Recommended Citation:
Zhang, Cui,Lu, Jian,Wu, Jun,et al. Removal of phenanthrene from coastal waters by green tide algae Ulva prolifera[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2017,609:1322-1328.
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