中国科学院机构知识库网格系统: 检索

Occurrence, distribution and ecological risk assessment of polycyclic aromatic hydrocarbons and their derivatives in the effluents of wastewater treatment plants 期刊论文 OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2021, 卷号: 789, 页码: -
作者: Liu, Quanzhen; Xu, Xiong; Lin, Lihua; Wang, Donghong

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Wastewater treatment plants Effluent Disinfection by-products Temporal distribution Ecological risk

Distribution and formation mechanisms of polychlorinated organic by-products upon the catalytic oxidation of 1,2-dichlorobenzene with palladium-loaded catalysts 期刊论文 OAI收割
JOURNAL OF HAZARDOUS MATERIALS, 2020, 卷号: 393, 页码: 1-9
作者: Li, Na; Cheng, Jie; Xing, Xin; Sun, Yonggang; Hao, Zhengping

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Catalytic oxidation 1,2-Dichlorobenzene By-products distribution Polychlorinated organic compounds Reaction mechanism

钯基催化剂上 1 ,2 二氯苯催化降解过程及机理研究 学位论文 OAI收割
北京: 中国科学院生态环境研究中心, 2020
作者: 李娜

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收藏 | 浏览/下载：30/0 | 提交时间：2021/07/06

催化降解 1,2 二氯苯，副产物分布，多氯有机化合物，反应机理 Catalytic DegradatIon 1,2 d Ichlorobenzene b y Products DistributIon p Olychlorinated Organic Compounds r Eact Ion Mechanism

食用蔬菜能吸收和积累微塑料 期刊论文 OAI收割
科学通报, 2019, 卷号: 64, 期号: 9, 页码: 928-934
作者: 李连祯; 周倩; 尹娜; 涂晨; 骆永明

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微塑料生菜聚苯乙烯微球吸收积累健康风险 microplastics lettuce polystyrene microbeads uptake accumulation human health risk Microplastic (MP, 100 nm-5 mm) may present an attributable risk to ecosystem and human health, and its pollution has become a global environmental concern. Despite a wealth of information on the accumulation of MPs in aquatic species, there is no information on the uptake and accumulation of MPs by higher plants. Terrestrial edible plants are directly exposed to MPs when agricultural soil was applied with organic manure, sewage sludge as fertilizer or plastic mulching. In this paper, the uptake of two sizes of polystyrene (PS) microbeads (0.2 and 1.0 mum) and then their distribution and migration in an edible plant lettuce were firstly investigated based on laboratory experiments. We used fluorescent markers to track PS microbeads in plant tissues and found fluorescence to be a sensitive and reliable detection method. Sections from untreated control lettuce showed no autofluorescence. When roots were treated with fluorescently labeled PS microbeads, the microbeads could be identified by its fluorescence. Our main study investigated the uptake of 0.2 mum beads, as few luminescence signals were observed in lettuce roots for 1.0 mum beads in our experiment. We observed that 0.2 mum fluorescent microbeads were extracellularly trapped in the root cap mucilage (which is a highly hydrated polysaccharide) and a dark green tip (which was typical of lettuce roots exposed to label PS beads) was usually visible to the naked eye. Confocal images revealed that the PS luminescence signals were mainly located in the vascular system and on the cell walls of the cortex tissue of the roots, indicated that the beads passed through the intercellular space via the apoplastic transport system. Once inside the central cylinder, the 0.2 mum PS beads were transferred from the roots to the stems and leaves via the vascular system following the transpiration stream. We also observed that the PS beads adhered to one another and self-assembled systematically into grape-like and (chain) string-like clusters in the intercellular space of the root and stem vascular tissue of lettuce plant. In contrast to the root and stem, PS beads were dispersed in the leaf tissue. Here, for the first time we provide evidence of the adherence, uptake, accumulation, and translocation of submicrometer MPs within an edible plant. Our findings highlight the previously underappreciated human exposure pathway to MPs through the consumption of contaminated crops and emphasize the need for new management strategies to control the release of MPs waste products into the terrestrial environment. Ultimately, the potential impacts of low range sized MPs on food safety of crop plants and human health need to be urgently considered.

饮用水处理及输配过程中亚硒酸根和碘离子的氧化动力学与机制研究 学位论文 OAI收割
北京: 中国科学院生态环境研究中心, 2018
作者: 刘绍刚

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亚硒酸根 Selenite Iodide Oxidation/disinfection Disinfection By-products Drinking Water Distribution Pipes 碘离子氧化/消毒消毒副产物饮用水输配管网

Effects of phosphate-enhanced ozone/biofiltration on formation of disinfection byproducts and occurrence of opportunistic pathogens in drinking water distribution systems 期刊论文 OAI收割
WATER RESEARCH, 2018, 卷号: 139, 页码: 168-176
作者: Liu, Lizhong; Hu, Chun; Wang, Haibo; Xing, Xueci

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Disinfection by-products Opportunistic pathogens BAC Extracellular polymeric substances Biofilm Drinking water distribution systems

O3-BAC及消毒工艺对饮用水管网条件致病菌生长控制机理 学位论文 OAI收割
北京: 中国科学院生态环境研究中心, 2018
作者: 刘丽忠

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收藏 | 浏览/下载：67/0 | 提交时间：2019/07/10

条件致病菌,饮用水输水管网,生物膜,腐蚀产物,Qpcr Opportunistic Pathogens, Drinking Water Distribution Systems, Biofilms, Corrosion Products, Qpcr

基于臭氧活性炭处理的饮用水铸铁管网水质稳定性控制原理 学位论文 OAI收割
北京: 中国科学院生态环境研究中心, 2018
作者: 邢学辞

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臭氧活性炭,饮用水管网,水质,消毒副产物,微生物 Ozone-activated Carbon, Drinking Water Distribution Systems, Water Quality, Disinfection By-products, Microorganism

History, Distribution, and Potential of the Olive Industry in China: A Review 期刊论文 OAI收割
SUSTAINABILITY, 2018, 卷号: 10, 期号: 5, 页码: 19
作者: Su, ChunJiang; Sun, Junfeng; Zhu, Wanze; Peng, Li

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olive industry history distribution GIS spatial analysis development potential agriculture products

三类卤代消毒副产物的分布特征及生成影响因素初探 学位论文 OAI收割
硕士, 北京: 中国科学院研究生院, 2016
作者: 宝露尔

收藏 | 浏览/下载：213/0 | 提交时间：2017/06/30

饮用水，消毒副产物，分布特征，生成势 drinking water，disinfection by-products, distribution characteristics, formation potential