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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
  |  收藏  |  浏览/下载：13/0  |  提交时间：2021/12/23
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
  |  收藏  |  浏览/下载：22/0  |  提交时间：2021/09/14
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
  |  收藏  |  浏览/下载：143/0  |  提交时间：2020/06/17
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
  |  收藏  |  浏览/下载：28/0  |  提交时间：2019/07/30
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
  |  收藏  |  浏览/下载：42/0  |  提交时间：2019/06/24
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
  |  收藏  |  浏览/下载：26/0  |  提交时间：2019/07/29
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
Removal of natural organic matter for controlling disinfection by-products formation by enhanced coagulation: A case study 期刊论文  OAI收割
Engineering, 2012, 卷号: 84, 期号: 1, 页码: 41-45
Liu, Huijuan; Liu, Ruiping; Tian, Chuan; Jiang, Han; Liu, Xiaoling; Zhang, Ran; Qu, Jiuhui
收藏  |  浏览/下载：26/0  |  提交时间：2014/11/28
Removal of natural organic matter for controlling disinfection by-products formation by enhanced coagulation: A case study 会议论文  OAI收割
6th International Conference on Sustainable Water Environment, Univ Delaware, Newark, DE, JUL 29-31, 2010
作者:  Liu, Huijuan;   Liu, Ruiping;   Tian, Chuan;   Jiang, Han;   Liu, Xiaoling;   Zhang, Ran;   Qu, Jiuhui
收藏  |  浏览/下载：18/0  |  提交时间：2015/12/24
LED optical engine based on rectangular CPC for micro-projection display (EI CONFERENCE) 会议论文  OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China
作者:  Meng Z.;  Meng Z.
收藏  |  浏览/下载：19/0  |  提交时间：2013/03/25
With applications in digital display  consumer electronics  medicine  automotive lighting  traffic signals  and general illumination  the light-emitting diode (LED) is the world's most efficient light source being mass produced today[1]. However  high cost is the main factor restricting widespread application of LED lighting  and the packaging is the most expensive aspect of LED products. Light emitting diodes (LED) are regarded as the most important light sources in solid-state lighting for their advantages in energy efficiency  long life  vivid colors  high reliability  environmental protection  safety and multiple applications. However  application of LEDs in projection display exist many questions such as low illuminance uniformity and low energy efficiency by reason of luminescence distribution and constructure specificity for LED  the study on application of LED in the micro-projection display and projection display is reported[2-8]. Considering the question mensioned above the rectangular CPC(Compound Parabolic Concentrator) system with three-color LED is applied in the projection display. 2009 SPIE.