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Effects of effluent organic matters on endocrine disrupting chemical removal by ultrafiltration and ozonation in synthetic secondary effluent

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Journal of Environmental Sciences 2019年第2期31卷 57-64页

作者： Xiurong Si Zunfang Hu Ding Ding Xu Fu Civil Engineering Department North China Institute of Aerospace Engineering Shandong Institute of Geophysical and Geochemical Exploration

Endocrine disrupting chemicals(EDCs) in the secondary effluent discharged from wastewater treatment plants are of great concern when water reuse is intended. Ozonation and ultrafiltration(UF) are powerful technologies reported to eliminate EDCs. Due to the importance of effluent organic matters(EfOMs) in secondary effluent, the effects of three kinds of EfOM on the treatment of five EDCs using ozonation and UF were investigated. The three kinds of EfOM studied were humic acid sodium salt(NaAH), bovine serum albumin(BSA)and sodium alginate(NaAg); and the five EDCs were estrone, 17β-estradiol, estriol, 17α-ethynyl estradiol and bisphenol A. The results showed that EfOM accelerated the decay rate of ozone and inhibited the degradation efficiency of EDCs by ozonation in the order NaAH > BSA > NaAg.The ultraviolet absorbance at 280 nm(UVA_(280)) has potential for use as a surrogate indicator to assess EDC removal via ozonation without conducting difficult EDC analyses. When the decline in UVA_(280) exceeded 18%, the five EDCs had been completely removed. The UF behavior of NaAH,BSA and NaAg was found to follow the cake filtration law. The fouling potential of EfOM followed the order NaAg > NaAH > BSA; while EfOM on the membrane surface enhanced EDC removal in the order NaAH > BSA > NaAg. The mean retention rate of the membrane was increased by 24%, 10% and 8%, respectively. The properties of EDCs and EfOM cakes both influenced the EDC removal rates due to adsorption, size exclusion and charge attraction.

关键词： Endocrine disrupting chemicals Ultrafiltration Ozonation Effluent organic matters Secondary effluent

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Crop Seed Size： BR matters

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Molecular Plant 2017年第5期10卷 668-669页

作者： Song, Xian-Jun Chinese Acad Sci Inst Bot 20 Nanxincun Beijing 100093 Peoples R China

Sufficient food supply is critically important to humans, and food security will be particularly challenging in view of the evergrowing world population, decreasing arable cropland, and global warming. To meet the challenges, most crop geneticists think it will be necessary to enrich the cultivated gene pool for breeding programs, and thus equally important to increase our understanding of the underlying genetic and molecular mechanism for grain yield. However,

关键词： Crop Seed Size BR matters

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X-Mechanics——An endless frontier

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Science China(Physics,Mechanics & Astronomy) 2019年第1期62卷 1-8页

作者： Wei Yang HongTao Wang TieFeng Li ShaoXing Qu Center for X-Mechanics Zhejiang University Institute of Applied Mechanics Zhejiang University Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province Zhejiang University

In contrast to the conventional wisdom that mechanics is a relatively mature subject, the new manifestation of mechanics in an extended or crossed form is unfolding. Mechanics is now powering all subjects, from physical sciences, life sciences to social sciences. We name this new phase for the development of mechanics X-Mechanics. The present article outlines the contents of X-Mechanics from four aspects: cross media, cross scales, cross compliances, and cross cyber/physical spaces. X-Mechanics constitutes an endless frontier of science and technology.

关键词： X-Mechanics soft matters multi-scales multi-physics adaptive

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Review of the applications of Multiangle Imaging SpectroRadiometer to air quality research

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Science China Earth Sciences 2009年第1期52卷 132-144页

作者： Ralph A.KAHN Jet Propulsion Laboratory California Institute of TechnologyPasadenaCA 91109USA

The Multiangle Imaging SpectroRadiometer(MISR) launched by NASA in late 1999 has a unique mul-tiangle design,which points nine cameras at fixed angles along the satellite flight track and collects reflected solar radiation simultaneously.This design allows the retrieval of a rich dataset of particle abundance,shape and composition over both land and ocean.Some of its capabilities have not been seen by any currently operating satellite aerosol sensors.Since MISR is sensitive to fine particles,it provides a new data source to study the spatial and temporal characteristics of air quality over large geographical regions.We first briefly introduce the MISR instrument,the retrieval and structure of MISR aerosol data,and then review the applications of MISR aerosol data in various aspects of air quality research since its launch.These include the spatial distributions of particle pollution events such as dust storms,wild fires,and urban pollution.Because of the high quality of MISR aerosol data,they can be used as quantitative indicators of particle pollution levels.We review the current modeling studies of surface level particle concentrations.Next,we introduce research results using MISR's advanced data such as the plume heights,and particle microphysical properties.In the discussion,we compare MISR research with current MODIS research to the best of our ability as MODIS data have been more extensively explored by the Chinese scientific community.Finally,we summarize the advantages and disadvantages of MISR data related to its applications to the air quality research.Given the highly quantitative measurements and comprehensive aerosol information MISR can provide,we believe that it will provide great values to advance our understanding of the particle air pollution in China.

关键词： aerosol remote sensing MISR multiangle imaging aerosol optical thickness particulate matters PM2.5 PM10 air pollution

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Multisize and multiweight effects in materials science and engineering

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Science China(Technological Sciences) 2019年第4期62卷 707-710页

作者： SUN CongTing XUE DongFeng State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences

Materials mainly refer to the matters with a certain composition,structure,and property,which can be formed by natural mineralization or artificial manufacture and are widely used in various specific fields,therefore,... 详细信息

关键词： matters basis fields

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Water Soluble Ionic Species in the Atmospheric Fine Particulate matters (PM2.5) in a Southeast Asian Mega City (Dhaka, Bangladesh)

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Open Journal of Air Pollution 2015年第3期4卷 99-108页

作者： Abdus Salam Md. Assaduzzaman Muhammad Nobi Hossain A. K. M. Nur Alam Siddiki Department of Chemistry Faculty of Science University of Dhaka Dhaka Bangladesh

Atmospheric fine particulate matters (PM2.5) were collected with an Envirotech Instrument (Model APM 550) at the roof of Khundkur Mukarram Hussain Science Building, University of Dhaka, Bangladesh between January and February, 2013. PM2.5 samples were collected on Quartz fiber filters during day and night time. Water soluble ions (sulfate, nitrate, phosphate, chloride, bromide, sodium, potassium and calcium) were analyzed with Ion Chromatography (Model 881, Metrohm Ltd., Switzerland) and Flame photometer (Model PFP7, Jenway, UK). Average PM2.5 mass was 136.1 μg·mǅ during day time and 246.8 μg·mǅ during night time with a total average of 191.4 μg·mǅ. Nighttime PM2.5 concentration was about double compared than that of daytime presumable due to the low ambient temperatures with high emissions from heavy duty vehicles. The 24-hour average PM2.5 mass (average of day and night) was about eight times higher than WHO (25.0 μg·mǅ) and about three times higher than DoE, Bangladesh (65.0 μg·mǅ) limit values. The total average concentrations of sulfate, nitrate, phosphate, bromide, chloride, sodium, potassium and calcium were 5.30, 7.75, 0.62, 0.16, 1.19, 1.30, 8.11, and 3.09 μg·mǅ, respectively. The concentrations of the water soluble ions were much higher during nighttime than daytime except nitrate, bromide and potassium. Excellent correlations were observed between sulfate and nitrate, sodium and chloride, bromide and phosphate indicating joint sources of origin. Potassium, sulfate, nitrate and calcium are the most dominant species in PM2.5. Water soluble ionic components in Dhaka contributed about 15% mass of the PM2.5. Ratio analysis showed that sodium and chloride were from mainly sea salt. Potassium has varieties of sources other than biomass burning. Sulfate and nitrate are mainly from fossil fuel origin. This is the first study of the day and night variation of the water soluble ionic species at the fine particulate matters (PM2.5) in Bangladesh.

关键词： Air Pollution Particulate matters Water Soluble Ions Sulfate Nitrate

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新加坡Chemistry matters教材酸、碱、盐知识分析及启示

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化学教育 2015年第23期36卷 2-6页

作者：刘克文王昊北京师范大学化学学院北京100875 北京师范大学良乡附属中学 102488

基于命题和页幅2个方面对新加坡Chemistry matters教材中酸、碱、盐知识进行了定量分析,研究了其在内容选取、结构编排、呈现方式等方面的特点,并给出了一些启示。

关键词：新加坡化学教材 Chemistry matters 酸、碱、盐教材设计

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AIR matters:提升室内空气质量的适应性种植系统

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装饰 2017年第7期 40-41页

作者：梅燕妮朱小村 Mary Polites 高懿理钱栎同济大学设计创意学院

设计说明：种植系统的三要素为：植物、种植模块、空间。首先,搭载于虚拟网页平台的植物应用数据库依据室内空气质量IAQ（Indoor Air Quality）因素和植物物候特征进行合理植物筛选。根据平台用户的扩增,用户提供内容（User Generated C... 详细信息

设计说明：种植系统的三要素为：植物、种植模块、空间。首先,搭载于虚拟网页平台的植物应用数据库依据室内空气质量IAQ（Indoor Air Quality）因素和植物物候特征进行合理植物筛选。根据平台用户的扩增,用户提供内容（User Generated Content）会愈发完善。其次,适应性种植装置采用模块化的思路,可通过虚拟平台toolkit让用户自主搭建。

关键词：种植系统 AIR matters 植物物候空气质量虚拟平台设计说明平台用户空间界面空气检测器综合系统

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Strategy &Techniques for Restoration of Healthy Aquaecosystem from Toxic Super Eutrophic Water Body

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Journal of Geoscience and Environment Protection 2015年第6期3卷 55-61页

作者： Peimin Pu Jiangping Pu Nanjing Institute of Geography & Limnology Academia Sinica Nanjing China PLA University of Science and Technology Nanjing China

There are complex river-lake systems in the Taihu Lake catchment with total water surface area of 6174.7 km2, and population density of 1079/km2, including Taihu Lake water surface area of 2338 km2. The water systems in this catchment have healthy aquaecosystems during long history. However, in some riverlets in this catchment the water quality was estimated as “acute toxicity for higher organisms” and over standards for many heavy metal elements content;there were no any living plants and macro organisms in the water body, because there were developed a series of industry with abundant release of heavy metals and difficult decomposition organic chemical components along the riverlets during last decades. The even more serious situation was observed in sediments of the riverlets. How to restore such riverlet into a healthy aquaeosystem with abound plants and higher organisms? The main strategy and techniques are described in this paper as summarizing a report of engineering in a riverlet in Wuxi New District during last years, which leads to restore the aquaecosystem into a healthy one with abundant surface plant cultured on floating islands and observed living fish, lobster, frog, toad, mollusk and others in the riverlet. The main techniques are: 1) softwall buffer technic;2) floating eco-island technic by using which can culture any plant which can be cultured in solution;3) immobilized nitrogen cycle bacteria (INCB) technic;4) tattering esters and other big-molecule organic chemicals by using electronic pulse technic and photosensitization technic;5) mist spray facility technic for improving dissolved oxygen in deep water layers;6) technic for buffering and suppressing H2S release from water;7) the appropriate portion of surface with cultured plant to the total water surface area is about 1/3;8) Cress [Oenanthe Ljavanica (Bl.) DC.] and Myriophyllum verticilatum L. may be cultured in Taihu Lake catchment during the whole year as main plants with mosaic combination of other supplement plants in different seasons

关键词： Restoration of Healthy Aquaecosystem Toxic Water Body Electronic Pulse Technique for Decomposition Esters Photosensitization for Decomposition of Organic matters Floating Eco-Islands Immobilized Nitrogen Cycle Bacteria

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《Chem matters》中化学情境素材资源介绍

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中学化学教学参考 2019年第1期 76-78页

作者：殷婉云张颖闫春更周青陕西师范大学化学化工学院陕西西安710062 西北工业大学教务处陕西西安710072

系统介绍了《Chem matters》杂志"Open for Discussion"(开放式讨论)中的化学情境素材资源,结合案例对该素材在化学情境教学中的应用进行了分析,以期为教师更好地开展化学情境教学提供参考。

关键词： Chem matters 化学情境素材课程资源

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