硅藻对三价砷的吸附吸收行为及机制
发布时间：2021-01-28 21:03
砷（Arsenic, As）因其价态与结合态的多样性而呈现差异显著的污染行为,成为水体生态风险研究热点的代表性类金属元素。本论文研究毒性最强的三价砷[As（Ⅲ）]在淡水硅藻中的吸附吸收行为及其毒性作用,选取水质指示生物硅藻为藻类生物介质代表,通过氢化物原子吸收光谱（Hydride generation-atomic absorption spectrometry, HG-AAS）、傅里叶红外光谱（Fourier transform infrared spectroscopy, FTIR）和X射线光电子能谱（X-ray photoelectron spectroscopy, XPS）等技术,探究三价砷在淡水硅藻中的吸附吸收行为、机制、以及多不饱和醛（Polyunsaturated aldehydes, PUAs）与硅（Silicon, Si）的介导作用；运用透射电镜（Transmission electron microscope, TEM）和原子力显微镜（Atomic force microscope, AFM）等超微表征技术,探索三价砷和二甲基砷（Dimethylarsinic ac...
【文章来源】：浙江大学浙江省 211工程院校 985工程院校 教育部直属院校
【文章页数】：136 页
【学位级别】：博士
【部分图文】：
环境中砷循环概图
图1-3常温下砷形态与氧化还原的关系(LuandZhu，2011)re 1-3 The pH-Eh diagram for arsenic at 25 °C and 101.3 kPa (Lu and Zhu, 2污染与水质相关性研究污染与水质相关性分析的研究对自然水体水质的管理尤为重要关性可以采取相应措施来将降低砷污染引起的水生态风险威胁氧化还原条件会影响砷形态的变化而改变砷的生物有效性及其氧水体中三价砷As(in)会转化为五价砷As(V),而在还原性水etal., 1989)。研究表明，水体中有铁存在时，坤会与FeOOH在相物质，而在还原条件下，FeOOH因溶解及Fe3+会被还原成F解吸附作用而导致水体中砷浓度的增加（Gulens et al., 1979)。水也会与砷在矿物表面发生竞争吸附，同时也能与砷形成复杂的砷的活性，从而影响水体砷的迁移与富集(王焰心等,2004)。另素也与砷污染呈现显著的相关性，As(V)因与破化学结构的相似
浙江大学博士学位论文 绪论另一方面，PUAs充当桂藻细胞的信息化学物质以调节桂蓬生长过程，即桂藻受到损伤后，释放的PUAs被细胞感知，引起胞内Ca2+浓度升高以及其他内部调控机制的激活，呈现使细胞移动、增强抗性和诱导调亡的刻量效应关系，同时传递信号给相邻的桂藻细胞（Leflaive andTen-Hage, 2009)。另有研究表明，自然情况下，桂漢会在其生长后期释放PUAs，诱导其细胞调亡，从而促进其生态进化过程(Vidoudez and Pohnert, 2008)。
【参考文献】：
期刊论文
[1]Effects of inorganic arsenic on growth and microcystin production of a Microcystis strain isolated from an algal bloom in Dianchi Lake,China[J]. GONG Yan 1,AO HongYi 2,LIU BiBo 3,WEN Sheng 4,WANG Zhi 5,HU DingJing 1,ZHANG XingZhong 1,SONG LiRong 2 &LIU JianTong 2* 1 Institute of Agricultural Quality Standards&Testing Technology,Hubei Academy of Agriculture Sciences,Wuhan 430064,China;2 Institute of Hydrobiology,Chinese Academy of Sciences,Wuhan 430072,China;3 Department of Resourses and Environment Engineering,Henan Institute of Engineering,Zhengzhou 451191,China;4 National Institute of Nutrition and Food Safety,Chinese Center for Disease Control and Prevention,Beijing 100050,China;5 Institute of Agricultural Resource and Environmental Sciences,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China. Chinese Science Bulletin. 2011(22)
[2]去除水体中砷的研究进展与展望[J]. 王颖,吕斯丹,李辛,吴英杰. 环境科学与技术. 2010(09)
[3]Levels,trends and risk assessment of arsenic pollution in Yangzonghai Lake,Yunnan Province,China[J]. WANG ZhenHua1,HE Bin1,PAN XueJun2,ZHANG KeGang1,WANG Chang1,SUN Jing1,YUN ZhaoJun1 & JIANG GuiBin11State Key Laboratory of Environmental Chemistry and Ecotoxicology;Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China 2School of Environmental Science and Engineering,Kunming University of Science and Technology,Kunming 650093,China. Science China（Chemistry）. 2010(08)
[4]中国北方高砷地下水分布特征及成因分析[J]. 韩双宝,张福存,张徽,贾小丰,何锦,李旭峰. 中国地质. 2010(03)
[5]Effect of nutrient level on phytoplankton community structure in different water bodies[J]. Wei Zhu1, Lei Wan2, Lianfang Zhao1 1. College of Environmental Science and Engineering, Hohai University, Nanjing 210098, China. 2. College of Environmental Engineering, Xuzhou Institute of Technology, Xuzhou 221008, China. Journal of Environmental Sciences. 2010(01)
[6]中国主要含砷矿产资源的区域分布与砷污染问题[J]. 肖细元,陈同斌,廖晓勇,武斌,阎秀兰,翟丽梅,谢华,王莉霞. 地理研究. 2008(01)
[7]新疆奎屯123团土壤砷污染研究[J]. 罗艳丽,蒋平安,余艳华,郑春霞,武红旗,张贵彬. 土壤通报. 2007(03)
[8]Effect of combined pollution by heavy metals on soil enzymatic activities in areas polluted by tailings from Pb-Zn-Ag mine[J]. CHEN Cheng-li, LIAO Min~*, HUANG Chang-yong (Department of Resources Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310029, China.). Journal of Environmental Sciences. 2005(04)
[9]长江口附近海域春季浮游硅藻的种类组成和生态分布[J]. 高亚辉,虞秋波,齐雨藻,邹景忠,陆斗定,李扬,陈长平. 应用生态学报. 2003(07)
[10]镉及镉、锌共同作用对水芹菜部分生理特性的影响[J]. 徐勤松,施国新. 南京师大学报(自然科学版). 2000(04)
本文编号：3005689
【文章来源】：浙江大学浙江省 211工程院校 985工程院校 教育部直属院校
【文章页数】：136 页
【学位级别】：博士
【部分图文】：
环境中砷循环概图
图1-3常温下砷形态与氧化还原的关系(LuandZhu，2011)re 1-3 The pH-Eh diagram for arsenic at 25 °C and 101.3 kPa (Lu and Zhu, 2污染与水质相关性研究污染与水质相关性分析的研究对自然水体水质的管理尤为重要关性可以采取相应措施来将降低砷污染引起的水生态风险威胁氧化还原条件会影响砷形态的变化而改变砷的生物有效性及其氧水体中三价砷As(in)会转化为五价砷As(V),而在还原性水etal., 1989)。研究表明，水体中有铁存在时，坤会与FeOOH在相物质，而在还原条件下，FeOOH因溶解及Fe3+会被还原成F解吸附作用而导致水体中砷浓度的增加（Gulens et al., 1979)。水也会与砷在矿物表面发生竞争吸附，同时也能与砷形成复杂的砷的活性，从而影响水体砷的迁移与富集(王焰心等,2004)。另素也与砷污染呈现显著的相关性，As(V)因与破化学结构的相似
浙江大学博士学位论文 绪论另一方面，PUAs充当桂藻细胞的信息化学物质以调节桂蓬生长过程，即桂藻受到损伤后，释放的PUAs被细胞感知，引起胞内Ca2+浓度升高以及其他内部调控机制的激活，呈现使细胞移动、增强抗性和诱导调亡的刻量效应关系，同时传递信号给相邻的桂藻细胞（Leflaive andTen-Hage, 2009)。另有研究表明，自然情况下，桂漢会在其生长后期释放PUAs，诱导其细胞调亡，从而促进其生态进化过程(Vidoudez and Pohnert, 2008)。
【参考文献】：
期刊论文
[1]Effects of inorganic arsenic on growth and microcystin production of a Microcystis strain isolated from an algal bloom in Dianchi Lake,China[J]. GONG Yan 1,AO HongYi 2,LIU BiBo 3,WEN Sheng 4,WANG Zhi 5,HU DingJing 1,ZHANG XingZhong 1,SONG LiRong 2 &LIU JianTong 2* 1 Institute of Agricultural Quality Standards&Testing Technology,Hubei Academy of Agriculture Sciences,Wuhan 430064,China;2 Institute of Hydrobiology,Chinese Academy of Sciences,Wuhan 430072,China;3 Department of Resourses and Environment Engineering,Henan Institute of Engineering,Zhengzhou 451191,China;4 National Institute of Nutrition and Food Safety,Chinese Center for Disease Control and Prevention,Beijing 100050,China;5 Institute of Agricultural Resource and Environmental Sciences,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China. Chinese Science Bulletin. 2011(22)
[2]去除水体中砷的研究进展与展望[J]. 王颖,吕斯丹,李辛,吴英杰. 环境科学与技术. 2010(09)
[3]Levels,trends and risk assessment of arsenic pollution in Yangzonghai Lake,Yunnan Province,China[J]. WANG ZhenHua1,HE Bin1,PAN XueJun2,ZHANG KeGang1,WANG Chang1,SUN Jing1,YUN ZhaoJun1 & JIANG GuiBin11State Key Laboratory of Environmental Chemistry and Ecotoxicology;Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China 2School of Environmental Science and Engineering,Kunming University of Science and Technology,Kunming 650093,China. Science China（Chemistry）. 2010(08)
[4]中国北方高砷地下水分布特征及成因分析[J]. 韩双宝,张福存,张徽,贾小丰,何锦,李旭峰. 中国地质. 2010(03)
[5]Effect of nutrient level on phytoplankton community structure in different water bodies[J]. Wei Zhu1, Lei Wan2, Lianfang Zhao1 1. College of Environmental Science and Engineering, Hohai University, Nanjing 210098, China. 2. College of Environmental Engineering, Xuzhou Institute of Technology, Xuzhou 221008, China. Journal of Environmental Sciences. 2010(01)
[6]中国主要含砷矿产资源的区域分布与砷污染问题[J]. 肖细元,陈同斌,廖晓勇,武斌,阎秀兰,翟丽梅,谢华,王莉霞. 地理研究. 2008(01)
[7]新疆奎屯123团土壤砷污染研究[J]. 罗艳丽,蒋平安,余艳华,郑春霞,武红旗,张贵彬. 土壤通报. 2007(03)
[8]Effect of combined pollution by heavy metals on soil enzymatic activities in areas polluted by tailings from Pb-Zn-Ag mine[J]. CHEN Cheng-li, LIAO Min~*, HUANG Chang-yong (Department of Resources Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310029, China.). Journal of Environmental Sciences. 2005(04)
[9]长江口附近海域春季浮游硅藻的种类组成和生态分布[J]. 高亚辉,虞秋波,齐雨藻,邹景忠,陆斗定,李扬,陈长平. 应用生态学报. 2003(07)
[10]镉及镉、锌共同作用对水芹菜部分生理特性的影响[J]. 徐勤松,施国新. 南京师大学报(自然科学版). 2000(04)
本文编号：3005689
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