王建旭;张军方;冯新斌;谢园艳;余志;

• 1: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
• 2:贵州省环境科学研究设计院
• 3:中国科学院大学

摘要(Abstract)：

在田间条件下,研究添加硫代硫酸铵对黄平大黄油菜(Brassica juncea var.HPDH)富集土壤汞(总汞含量13.7mg·kg-1)及土壤汞形态转化影响。试验设置2个处理,对照小区(无硫代硫酸铵)和处理小区(每公斤土壤加入8 g硫代硫酸铵),硫代硫酸铵溶液在植物收获前7 d添加到土壤。试验结束后,分析植物生物量和组织内汞含量。结果表明,硫代硫酸铵处理小区植物生物量(干重)要略高于对照区。硫代硫酸铵处理小区植物根系和地上部分汞含量分别是对照区的600和250倍。利用连续化学浸提法分析了修复前后土壤汞形态变化特征,发现硫代硫酸铵辅助植物修复后能显著降低土壤有机结合态汞含量,大幅度提高残渣态汞含量,溶解态与可交换态汞含量略有增加,特殊吸附态和铁锰氧化态汞含量无显著变化。

关键词(KeyWords)： 硫代硫酸铵;汞污染土壤;植物提取;汞形态

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(No.41303068);; 2012年度贵州环保厅重金属污染防治专项资金资助

作者(Author): 王建旭;张军方;冯新斌;谢园艳;余志;

Email:

参考文献(References)：

• [1]瞿丽雅,付舜珍,刘鹂,等.汞污染土壤的改善研究[J].贵州师范大学学报:自然科学版,2004,22(2):49-51Qu L Y,Fu S Z,Liu P,et al.A study on the soil improvement polluted by mercury[J].Journal of Guizhou Normal University(Natural Sciences),2004,22(2):49-51(in Chinese)
• [2]林凯.严重汞污染土壤汞的淋溶特征及其淋洗修复研究[D].贵州大学硕士论文,2009,贵阳Lin K.The study of leaching characteristics and leaching remediation of heavily mercury contaminated soil[D].The Master Thesis for Guizhou University,2009,Guiyang(in Chinese)
• [3]金桂文,冀秀玲,卢静,等.汞污染地区粮食对大鼠脑组织氧化损伤影响[J].环境科学与技术,2005,28(4):10-12Jin G W,Ji X L,Lu J,et al.Study of oxidation injury on rat brain exposed by mercury contamianted rice[J].Environmental Science and Technology,2005,28(4):10-12(in Chinese)
• [4]Abbas M H H,Abdelhafez A A.Role of EDTA in arsenic mobilization and its uptake by maize grown on an Aspolluted soil[J].Chemosphere,2013,90:588-594
• [5]包正铎,王建旭,冯新斌,等.贵州万山汞矿区污染土壤中汞的形态分布特征[J].生态学杂志,2011,30(5):907-913Bao Z D,Wang J X,Feng X B,et al.Distribution of mercury speciation in polluted soils of Wanshan mercury mining area in Guizhou[J].Chinese Journal o f Ecology,2011,30 5):907-913(in Chinese)
• [6]王建旭,冯新斌,商立海,等.添加硫代硫酸铵对植物修复汞污染土壤的影响[J].生态学杂志,2010,29(10):1998-2002Wang J X,Feng X B,Shang L H,et al.Effects of ammonium thiosulphate amendment on phytoremediation of mercury polluted soil[J].Chinese Journal of Ecology,2010,29(10):1998-2002(in Chinese)
• [7]Wang Y,Greger M.Use of iodide to enhance the phytoextraction of mercury-contaminated soil[J].Science of the Total Environment,2006,368:30-39
• [8]Smolinska B,Cedzynska K.EDTA and urease effects on Hg accumulation by Lepidium sativum[J].Chemosphere,2007,69:1388-1395
• [9]Moreno F N,Anderson C W N,Stewart R B,et al.Meech,Induced plant uptake and transport of mercury in the presence of sulphur-containing ligands and humic acid[J].New Phytologist,2005,166:445-454
• [10]Wang J X,Feng X B,Anderson C W N,et al.Ammonium thiosulphate enhanced phytoex-traction from mercury contaminated soil-Results from a greenhouse study[J].Journal of Hazardous Materials,2011,186:119-127
• [11]Moreno F N,Anderson C W N,Stewart R B,et al.Effect of thioligands on plant-Hg accumulation and volatilisation from mercury-contaminated mine tailings[J].Plant and Soil,2005,275:233-246
• [12]Pedron F,Petruzzell G,Barbafier M et al.Remediation of a mercury-contaminated industrial soil using bioavailable contaminant stripping[J].Pedosphere,2013,23:104-110
• [13]Wang J X,Feng X B,Anderson C W N,et al.Thiosulphate-induced mercury accumulation by plants:metal uptake and transformation of mercury fractionation in soil-results from a field study[J].Plant and Soil,2014,375:21-33
• [14]Ullah M B.Mercury stabilization using thiosulphate and thioselenate[D].Thesis for University of British Columbia,2008,Vancouver