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Chinese Journal Of Geochemistry 2015年第3期34卷 311-319页

作者： Ping li Junfang Zhang Jianxu Wang zhonggen li State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences Guizhou Provincial Key Laboratory of Water Pollution Control and Resource Reuse

Mercury pollution resulting from artisanal gold mining is a serious environmental problem in many developing countries. In this study, we analyzed heavy metal(loid) contamination in mine wastes from a Carlin-type gold mine in southwestern Guizhou, China. Highly elevated levels of As, Hg, Tl, Sb, and Cd—up to 5844, 28,29, 581 and 3.0 mg/kg, respectively—were observed in the mine wastes, but no significant accumulation of Cr, Ni, Cu,Zn, and Pb was found. The smelting process of gold ores had significant impacts on the enrichment of As, Tl, and Hg in the mine wastes. Due to the significant metal(loid)pollution in this gold mine, the ecological risks are classified as ‘‘very high.'' Hg and As are the major pollutants with a relative contribution of 55.9 % and 24.2 % to the risk index, respectively. Phytoremediation could be used to reduce heavy metal contamination and recycle the gold simultaneously. Hg–As–Tl pollution should be considered in gold extraction at Carlin-type gold mines.

关键词：卡林型金矿重金属污染废弃物污染发展中国家矿山废弃物西南部环境影响贵州

Partitioning of rare earth elements and yttrium(REY)in five coal-fired power plants in Guizhou,Southwest China

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Journal of Rare Earths 2020年第11期38卷 1257-1264,I0005页

作者： zhonggen li Xinyu li Leiming Zhang Shan li Ji Chen Xinbin Feng Dongbo Zhao Qingfeng Wang Zhixi Gao Bailian Xiong College of Resources and Environment Zunyi Normal UniversityZunyi 563006China State Key Laboratory of Environmental Geochemistry Institute of GeochemistryChinese Academy of SciencesGuiyang 550081China University of Chinese Academy of Sciences Beijing 100049China Air Quality Research Division Science and Technology BranchEnvironment and Climate Change CanadaTorontoM3H 5T4Canada College of Chemical Engineering Huaqiao UniversityXiamen 361021China

As indispensable strategic materials for high-tech industries,rare earth elements and yttrium(REY)have become particularly important in recent years,raising the demand of developing new approaches for reclamation of REY from REY-rich materials such as coal combustion products(CCPs).In this study,five coal-fired power plants(CFPPs)in Guizhou of southwest China were selected for investigating REY concentrations of solid samples,atmospheric emissions,and recovery *** concentrations of feed fuels are higher in this study(147.2-468.6 mg/kg)than what have been reported previously for coals in China and the *** atmospheric emissions are extremely low(38.70-180.11 mg REY/t coal).REY are enriched in bottom ash and fly ash,with average of 658±296 mg/kg and maximum of 1257 mg/kg from the five *** enrichment factors(REF)of REY in bottom ash and fly ash compared with the feed fuel are 0.86-1.02 and 0.91-1.04,*** concentrations in desulfurized gypsum are very low(6-17 mg/kg),and that is mostly inherited from *** REY(Nd,Eu,Tb,Dy,Y,and Er)in bottom/fly ash account for 34%-39%of the total REY and the outlook coefficients(Cout1)are in the range of *** study indicates a promising prospect to reclaim REY from REYrich CCPs(bottom and fly ash)in CFPPs in Guizhou,especially in the central-north Guizhou,although such practices require further technology advancement.

关键词： REY Bottom ash Fly ash Atmospheric emissions Reclamation Rare earths

Pollution of mercury in soil and some plants of Guiyang City, China

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Chinese Journal Of Geochemistry 2006年第B08期25卷 240-241页

作者： Wei ZHENG Xinbin FENG zhonggen li State Key Laboratory of Envwonmental Geochemistry Instttute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China Graduate School of the Chinese Academy Sciences Beijing 100039 China

Seven millennia of Lead（Pb）and mercury（Hg）accumulation in a peat profile,Hani peat land,Jilin,China.

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Seven millennia of Lead（Pb）and mercury（Hg）accumulation i...

Spatial and temporal distributions of mercury species and controlling factors in Hongfeng Reservoir, Guizhou, China

第七届全国环境化学大会

作者： Atindra Sapkota Xinbin Feng Hong Bing zhonggen li Institute of Geochemistry Chinese Academy of Sciences

A peat core of 10 m length was collected from the Hani peatland,Jilin Province,northeast China（42°43’N,126°31’E）which is close to the Northern Peatlands *** peat land consisted of scattered humps with a sphagnum composition,which is anindicator that the peat land is continuously evolving from mineratrophic（groundwaterfed）to ombrotrophic nature（rain water fed）.The average dry bulk density and the ashcontent were 0.1g/cm3 and 20%with both closely following trends in the ***14C age dating of the top 550 cm showed that the peat accumulation for the last sevenmillennia with peat accumulation rate of approx.12 cm/*** Titanium（Ti）as anindicator of mineral input,the average concentration was about 0.2%with two peaksat ca.550 cm and 50 *** increment of Ti and density at ca.550 cm indicates thechanges in either source area of the minerals or the changes in depositional flux *** ca.50 cm,the absence of Ti peak coinciding with the increment of densitymay reflect the changes in plant composition and thus the humification of the *** mercury（Hg）the average concentration was 150 ng/g,and showed few ***,for Pb,the concentration remained fairly stable between 50 and *** 50 cm,the concentration increased by more than six *** the Ti profile,two things could be interpreted:1)Pb is predominantly ofatmospheric origin,and 2)above 50 cm,anthropogenic input may be responsible forincrease in *** is also supported by another lithogenic element such as ***,for the precise timing of increment for the last ca.100 years,age datingother than 14C is required.

关键词： peat lead mercury titanium

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Chinese Journal Of Geochemistry 2006年第B08期25卷 147-148页

作者： Tianrong HE Xinbin FENG Guangle QIU Weiyang BAI zhonggen li Julia LU State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Science Guiyang 550002 China Department of Chemistry and Biology Ryerson University 350 Victoria St. Toronto ON Canada

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空气幕防排地下建筑物烟流的探讨

湘潭矿业学院学报 1998年第1期13卷 61-64页

作者：李总根湖南省工业职工大学

根据地下建筑的特点，讨论了地下建筑防排烟设计时应遵循的原则．在分析现行建筑防排烟方式的基础上，提出气幕防排地下建筑烟流．文中给出了其设计计算方法．图３。

关键词：地下建筑空气幕防排烟烟流

河北省衡水湖沉积物中汞的分布特征及生态风险

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生态毒理学报 2014年第5期9卷 908-915页

作者：陈吉李秋华李仲根王明猛贵州师范大学贵州省山地环境信息系统和生态环境保护重点实验室贵阳550001 中国科学院地球化学研究所环境地球化学国家重点实验室贵阳550002 中国地质大学(武汉)地球科学学院武汉430074 太原理工大学环境科学与工程学院太原030024

衡水湖是华北平原上第一个国家级内陆淡水湖泊湿地类型的自然保护区,为了解衡水湖沉积物中汞的分布特征及生态风险,于2013年8月在衡水湖采集了5根柱状沉积物,对其中的总汞、甲基汞、孔隙水溶解态汞、有机质、pH以及含水率进行了分析。... 详细信息

衡水湖是华北平原上第一个国家级内陆淡水湖泊湿地类型的自然保护区,为了解衡水湖沉积物中汞的分布特征及生态风险,于2013年8月在衡水湖采集了5根柱状沉积物,对其中的总汞、甲基汞、孔隙水溶解态汞、有机质、pH以及含水率进行了分析。结果表明,衡水湖沉积物中总汞的平均含量为22.5 ng·g-1,低于全国及河北省表层土壤背景值。但表层沉积物汞含量明显高于底层,说明近年来的外源汞输入对湖泊汞负荷产生了一定影响,且靠近湖泊东部106国道的采样点汞含量明显高于湖泊中西部的采样点,暗示交通运输等人为活动是该湖泊的一个重要汞输入源。利用潜在生态危害指数法进行评估,显示汞的生态风险较低,说明现阶段衡水湖的沉积物汞浓度不会对生态环境产生不利影响。

关键词：衡水湖湖泊沉积物汞含量生态风险

心外膜脂肪厚度与射血分数保留性心衰风险的相关性

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临床心血管病杂志 2022年第5期38卷 393-399页

作者：李中根李凌李黎白雪洋李宇娜录志远张文杰郑州大学第一附属医院心内科郑州450052

目的:探讨心外膜脂肪组织(EAT)厚度与射血分数保留性心力衰竭(HFpEF)发生风险的相关性。方法:选取2019年8月—2020年8月于郑州大学第一附属医院住院治疗,且接受常规心脏磁共振检查的HFpEF患者147例,其中男66例,女81例作为HFpEF组,另选... 详细信息

目的:探讨心外膜脂肪组织(EAT)厚度与射血分数保留性心力衰竭(HFpEF)发生风险的相关性。方法:选取2019年8月—2020年8月于郑州大学第一附属医院住院治疗,且接受常规心脏磁共振检查的HFpEF患者147例,其中男66例,女81例作为HFpEF组,另选取33例患者作为正常对照组。于心脏磁共振长轴四腔心平面测量右室游离璧及左、右房室沟心外膜脂肪厚度(EFT),同时收集其余相关指标及一般基线资料。结果:HFpEF组较对照组心房颤动、高血压、高脂血症、冠心病、肥厚型心肌病患病率及NT-proBNP、肌钙蛋白I、糖化血红蛋白明显升高,差异有统计学意义(P<0.05)。HFpEF患者右室游离璧及左、右房室沟EFT、左心房容积指数、三尖瓣反流速度均高于对照组,差异有统计学意义(P<0.05)。多因素logistic回归分析结果显示,NT-proBNP(β=0.092,OR=1.097,95%CI:1.036~1.161,P=0.002)、左室后壁厚度(β=2.177,OR=8.309,95%CI:1.669~41.376,P=0.010)、右室游离璧EFT(β=1.900,OR=6.683,95%CI:1.034~43.199,P=0.046)是HFpEF患者的独立危险因素(P<0.05)。结论:HFpEF的患者EFT较对照组明显增厚,右室游离璧EFT是HFpEF的发生的独立危险因素。

关键词：射血分数保留性心衰心外膜脂肪心脏磁共振

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汞污染土壤植物修复研究现状与展望

地球与环境 2022年第5期50卷 754-766页

作者：王璐陈功锡杨胜香李仲根吉首大学生物资源与环境科学学院湖南吉首416000 遵义师范学院资源与环境学院贵州遵义563006

土壤汞污染及其治理是当前汞环境地球化学研究的核心内容之一。与传统物理和化学修复技术相比,植物修复技术对环境扰动小,修复成本低,是目前汞污染土壤修复领域的主要热点方向。本文主要从汞污染土壤植物修复原理和应用两方面入手,总结... 详细信息

土壤汞污染及其治理是当前汞环境地球化学研究的核心内容之一。与传统物理和化学修复技术相比,植物修复技术对环境扰动小,修复成本低,是目前汞污染土壤修复领域的主要热点方向。本文主要从汞污染土壤植物修复原理和应用两方面入手,总结了土壤汞污染特点、植物修复技术原理及过程、修复植物与潜在修复植物种类、植物修复强化措施。针对现有研究的不足,对植物修复汞污染土壤的研究方向和发展趋势进行展望,以期为汞污染土壤植物修复技术应用与发展提供科学参考。

关键词：汞污染土壤植物修复强化措施

Exchange rate of mercury between atmosphere and different kinds of Earth’s surfaces on the east slope of Mt. Gongga

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Chinese Journal Of Geochemistry 2006年第B08期25卷 235-235页

作者： Xuewu FU Xinbin FENG Shangfeng WANG zhonggen li Ping li State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China Graduate School of Chinese Academy of Sciences Beijing 100039 China