不同硒化修复剂对稻田汞污染修复效果研究

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Abstract

Modification of montmorillonite with selenium was carried out with sodium selenite, montmorillonite and other materials, and the passivation agent of mercury was prepared by combining selenium with modified montmorillonite, so as to reduce the enrichment of mercury and methyl mercury in rice. In this paper, selenide repairing agent was mixed with the contaminated soil for soaking soil test and pot experiment, the THg and MeHg in soil and rice were analyzed, effect of different selenide repairing agents on the control of mercury in polluted soil was discussed, and the best repair agent was selected.The results showed that all four kinds of repairing agents had obvious passivation and control effect on mercury in contaminated soil, which could significantly reduce the exchangeable mercury and methylmercury in soil and reduce the content of THg and MeHg in rice. After the montmorillonoid was modified by selenium in different ways, the structural energy of montmorillonite was optimized, the adsorption capacity was increased, and the selenium can be stabilized on montmorillonite to achieve better passivation effect. The reduction rate of the modified montmorillonite with selenide chitosan, the modified montmorillonite with sodium selenite, the modified montmorillonite with selenide cellulose and the modified montmorillonite, with selenium powder to rice THg was 81.86%, 79.74%, 65.69% and 61.78%, respectively, and the reduction rate of these repairing agents to rice MeHg was 89.62%, 83.91%, 72.93% and 63.01%, respectively. Comparatively speaking, the remedial effect of the modified montmorillonite with sodium selenite was slightly lower than that of the modified montmorillonite with selenide chitosan, but its modification method is simple and low cost, which is more favorable to the popularization and application of repairing agent.

Key words： remediation mercury pollution selenium montmorillonite

Received: 04 April 2019

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X53

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	WANG Zu-bo
	HE Tian-rong

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WANG Zu-bo,HE Tian-rong. Effect of different selenization remediation agents on remediation of mercury pollution in paddyfields[J]. CHINA ENVIRONMENTAL SCIENCECE, 2019, 39(10): 4254-4261.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2019/V39/I10/4254

[1]	王祖光,崔丽巍,赵甲亭,等.硒对汞毒性的拮抗作用及机理[J]. 中国科学:化学, 2016,46(7):677-687. Wang Z G, Cui L W, Zhao J T, et al. Selenium and mercury in biological and ecological systems:interactions and mechanisms[J]. Chinese Science:Chemistry, 2016,46(7):677-687.
[2]	Clarkson T W, Magos L. The toxicology of mercury and its chemical compounds[J]. Critical Reviews in Toxicology, 2006,36(8):609.
[3]	王娅,李平,吴永贵,等.万山汞矿区大米汞污染及人体甲基汞暴露风险[J]. 生态学杂志, 2015,34(5):1396-1401. Wang Y, Li P, Wu Y G, et al. Mercury pollution in rice and exposure to methylmercury in humans in Wanshan mercury mining area[J]. Chinese Journal of Ecology, 2015,34(5):1396-1401.
[4]	Keating M H, Maxwell W H, Driver L, et al. Mercury study report to congress. Volume 8. An evaluation of mercury control tecdhnoloies and cost[R]. 1997.
[5]	Zhang H. Impacts of selenium on the biogeochemical cycles of mercury in terrestrial ecosystems in mercury mining areas[J]. Springer Theses, 2014,40(40):158-162.
[6]	ZhangH, Feng X B, Zhu J.M, et al. Selenium in soil inhibits mercury uptake and translocation in rice (Oryza sativa L.). Environmental Science and Technology, 2012,46:10040-10046.
[7]	涂瑞,陈敏,丁丽,等.万山汞矿区居民体内汞硒的含量、分布及相互关系[J]. 生态学杂志, 2018,37(5):1550-1555. Tu R, Chen M, Ding L, et al. The concentrations, distribution, and interrelation of mercury and selenium in human body in Wanshan mercury mining area[J]. Chinese Journal of Ecology, 2018,37(5):1550-1555.
[8]	钱晓莉,徐晓航,吴永贵,等.贵州万山汞矿废弃地自然定居植物对汞与甲基汞的吸收与累积[J/OL]. 生态学杂志, 2019,38(2):558-566. Qian X L, Xu X H, Wu Y G, et al. Distribution of inorganic mercury and methylmercury in wild plants inhabited on abandoned lands of Wanshan Hg mining region, Guizhou Province[J]. Chinese Journal of Ecology, 2019,38(2):558-566.
[9]	王亚玲,李述贤,杨合,等.有机改性蒙脱石负载巯基修复汞污染土壤[J]. 环境工程学报, 2018,12(12):3433-3439. Wang Y L, Li S X, Yang H, et al. Mercury contaminated soils remediation by using organic modified montmorillonite with sulfhydryl group loading[J]. Chinese Journal of Environmental Engineering, 2018,12(12):3433-3439.
[10]	仇广乐,冯新斌,王少锋,等.贵州汞矿矿区不同位置土壤中总汞和甲基汞污染特征的研究[J]. 环境科学, 2006,27:550-555. Qiu G L, Feng X B, Wang S F, et al. Total mercury and methylmercury in soils collected from Guizhou Hg-Mined[J]. Environmental Science, 2006,27:550-555.
[11]	孙向辉,蔡寒玉,丁军.黏土矿物钝化修复重金属污染农田土壤研究进展[J]. 安徽农业科学, 2018,46(32):7-9+13. Sun X H, Cai H Y, Ding J. Research progress on immobilization remediation of the heavy metal contaminated farmland soil with clay mineral materials[J]. Anhui Agric. Sci., 2018,46(32):7-9,13(32):7-9+13.
[12]	尹德良.万山汞矿区水稻汞含量影响因素研究及修复技术初探[D]. 贵阳:贵州大学, 2015. Yin D L. Influencing factors of mercury in rice and preliminary study on remediation technology of Wanshan Mercury-mined areas[D]. Guiyang:Guizhou University, 2015.
[13]	钟顺清,仇广乐,孟博,等.万山汞矿区水稻吸收无机汞及甲基汞影响因素探讨[J]. 农业环境科学学报, 2017,36(10):1946-1952. Zhong S Q, Qiu G L, Meng B, et al.Investigation of the factors affecting the absorption of inorganic mercury and methylmercury by rice in the Wanshan mercury mining area[J]. Journal of Agro-Environmental Science, 2017,36(10):1946-1952.
[14]	李梦耀,钱会.膨润土的改性及吸附Hg(Ⅱ)、Pb(Ⅱ)的研究[J]. 中国非金属矿工业导刊, 2006,(5):49-51. Li M Y, Qian H. Study on modification of bentonite and adsorption of Hg(II) and Pb(II)[J]. China Non-Metallic Mining Industry Guide, 2006,(5):49-51.
[15]	唐兴萍,周雄,张金洋,等.TiO2/膨润土复合材料对Hg2+的吸附性能研究[J]. 环境科学, 2017,38(2):608-615. Tang X P, Zhou X, Zhang J Y, et al. Adsorption properties of TiO2/bentonite composites for Hg2+[J]. Environmental Science, 2017,38(2):608-615.
[16]	王艳红,李林峰,唐明灯,等.不同钝化剂对降低水稻糙米Cd积累及土壤性状的影响[J]. 环境污染与防治, 2018,40(9):974-978. Wang Y H, Li L F, Tang M G, et al. Effects of different passivating agents on reducing Cd accumulation and soil properties of rice brown rice[J]. Environmental Pollution Control, 2018,40(9):974-978.
[17]	Schmidt L, Figueroa J A L, Vecchia P D, et al. Bioavailability of Hg and Se from seafood after culinary treatments[J]. Microchemical Journal, 2018:139.
[18]	蒋婷婷.不同改性蒙脱土的制备及其对土壤重金属的稳定化作用研究[D]. 上海:华东理工大学, 2016. Jiang T T. Preparation of different modified montmorillonite and its stabilization of soil heavy metals[D]. Shanghai:East China University of Science and Technology, 2016.
[19]	郝苗.小油菜中硒镉相互作用及富硒土壤施硫的影响[D]. 武汉:华中农业大学, 2016. Hao M. The interaction of selenium and cadmium in small rapeseed and the effect of sulfur application in selenium-enriched soil[D]. Wuhan:Huazhong Agricultural University, 2016.
[20]	刘燕,蒋光霞.硒对镉、铅复合污染下油菜重金属抗性的影响[J]. 安徽农业科学, 2010,38(21):11096-11098. Liu Y, Jiang G X. Effects of selenium on heavy metal resistance of rape under combined pollution of cadmium and lead[J]. Journal of Anhui Agricultural Sciences, 2010,38(21):11096-11098.
[21]	Zhang H, Feng X B, Zhu J M, et al. Selenium in soil inhibits mercury uptake and translocation in rice (Oryza sativa L.)[J]. Environmental Science and Technology, 2012,46:10040-10046.
[22]	Meng M, Li B, Shao J J, et al. Accumulation of total mercury and methylmercury in rice plants collected from different mining areas in China[J]. Environmental Pollution, 2014,184(1):179-186.
[23]	Phothitontimongkol T, Siebers N, Sukpirom N, et al. Preparation and characterization of novel organo-clay minerals for Hg(II) ions adsorption from aqueous solution[J]. Applied Clay Science, 2009, 43(3/4):0-349.
[24]	周兴军,李婧,魏晓燕,等.DMA-80直接测汞仪测定水及土壤中的总汞[J]. 环境与发展, 2014,26(8):16-19. Zhou X J, Li W, Wei X Y, et al. Determination of total mercury in water and soil by DMA-80direct mercury analyzer[J]. Environment and Development, 2014,26(8):16-19.
[25]	仇广乐,冯新斌,梁琏,等.溶剂萃取-水相乙基化衍生GC-CVAFS联用测定苔藓样品中的甲基汞[J]. 分析测试学报, 2005,(1):29-32. Qiu G L, Feng X B, Liang W, et al. Determination of methylmercury in moss samples by solvent extraction-water phase ethylation-derived GC-CVAFS[J]. Journal of Instrumental Analysis, 2005,(1):29-32.
[26]	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):907-913.(3):9-12. Bao Z Y, Wang J X, Feng X B, Shang L H.Distribution of mercury speciation in polluted soils of Wanshan mercury mining area in Guizhou.[J]. Chinese Journal of Ecology, 2011,30(5):907-913(5):907-913.(3):9-12.
[27]	杨国梁,何圣风,韩志萍.冷原子吸收法分别测定环境水样中的无机汞和有机汞[J]. 杭州大学学报(自然科学版), 1980,(2):51-58. Yang G L, He S F, Han Z P. Determination of Inorganic Mercury and Organic Mercury in Environmental Water by Cold Atomic Absorption Spectrometry[J]. Journal of Hangzhou University(Natural Science), 1980,(2):51-58.
[28]	尹德良,何天容,陈筠,等.不同改良剂对汞矿区水稻汞污染的钝化效果初探[J]. 广东农业科学, 2015,42(8):124-129. Yin D L, He T R, Chen W, et al. Preliminary study on passivation effects of mercury in rice by different amendments in mercury-mining areas[J]. Guangdong Agricultural Sciences, 2015,42(8):124-129.
[29]	燕敏,郭建阳,冯新斌,等.硒对土壤中汞形态及其生物有效性的影响[J]. 生态学杂志, 2015,34(5):1402-1406. Yan M, Guo J Y, Feng X B, et al. Effects of selenium on mercury speciation and its bioavailability in paddy soils.[J]. Chinese Journal of Ecology 2015,34(5):1402-1406(5):1402-1406.
[30]	Qiu G, Feng X, Li P, et al. Methylmercury accumulation in rice (Oryza sativa L.) grown at abandoned mercury mines in Guizhou, China[J]. Journal of Agricultural and Food Chemistry, 2008,56(7):2465-2468.
[31]	Li Y F, Zhao J, Li Y, et al. The concentration of selenium matters:a field study on mercury accumulation in rice by selenite treatment in qingzhen, Guizhou, China[J]. Plant and Soil, 2015,391(1/2):195-205.
[32]	Wang Y, Dang F, Evans R D, et al. Mechanistic understanding of MeHg-Se antagonism in soil-rice systems:the key role of antagonism in soil[J]. Scientific Reports, 2016,6:19477.
[33]	赵家印,王永杰,钟寰,等.三种修复剂对稻米甲基汞富集的影响研究[J]. 农业环境科学学报, 2019,38(2):284-289. Zhao J Y, Wang Y J, Zhong W, et al. Effects of three remediation agents on methylmercury bioaccumulation in rice grain[J]. Journal of AgroEnvironment Science, 2019,38(2):284-289.(2):284-289.
[34]	黄岁樑,臧常娟,杜胜蓝,等.pH、溶解氧、叶绿素a之间相关性研究Ⅰ:养殖水体[J]. 环境工程学报, 2011,5(6):1201-1208. Huang N L, Pei C J, Du S L,et al. Correlation between pH, dissolved oxygen and chlorophyll a I:aquaculture water body[J]. Journal of Environmental Engineering, 2011,5(6):1201-1208.
[35]	王福东,夏桂敏,王铁良,等.浑河及辽河沈阳段2001~2015年水污染变化特征及其对水体电导率的影响[J]. 中国农村水利水电, 2018, (3):44-49+54. Wang F D, Xia G M, Wang T L, et al. Characteristics of water pollution change and its influence on water conductivity in Shenyang and Liaohe Shenyang sections from 2001 to 2015[J]. China Rural Water and Hydropower, 2018,(3):44-49+54.
[36]	葛淼,李礼,杨兵.水环境质量监测指标间相关关系浅析[J]. 资源节约与环保, 2018,(11):44-45. Ge W, Li L, Yang B. Analysis of the Correlation between Water Environmental Quality Monitoring Indicators[J]. Resource Conservation and Environmental Protection, 2018,(11):44-45.
[37]	Wang Y, Dang F, Zhong H, et al. Effects of sulfate and selenite on mercury methylation in a mercury-contaminated rice paddy soil under anoxic conditions[J]. Environmental Science and Pollution Research, 2016,23(5):4602-4608.
[38]	韩朗.插层蒙脱石材料对污水中Pb2+和Cu2+的吸附研究[D]. 贵阳:贵州大学, 2017. Han L. Study on Adsorption of Pb2+ and Cu2+ in polluted water by intercalated montmorillonite[D]. Guiyang:Guizhou University, 2017.
[39]	周鑫斌,于淑慧,王文华,等.土壤施硒对水稻根表铁膜形成和汞吸收的影响[J]. 西南大学学报(自然科学版), 2014,36(1):91-95. Zhou X B, Yu S H, Wang W H, et al. Effects of application of selenium soil on the formation of root surface iron plaqueand mercury uotake by rice plants[J]. Journal of Southwest University (Natural Science Edition), 2014,36(1):91-95.
[40]	Zhou X B, Shi W M, Zhang L H, et al. Iron plaque outside roots affects selenite uptake by rice seedlings (Oryza sativa L.) grown in solution culture[J]. Plant & Soil, 2007,290(1/2):17-28.
[41]	Li Y F, Zhao J, Li Y, et al. The concentration of selenium matters:a field study on mercury accumulation in rice by selenite treatment in qingzhen, Guizhou, China[J]. Plant and Soil, 2015,391(1/2):195-205.
[42]	高鹏,高彬彬,高建强,等.壳聚糖及其复合物对水中汞离子的脱除[J]. 化学进展, 2016,28(12):1834-1846. Gao P, Gao B B, Gao J Q, et al. Chitosan and its composites for removal of mercury ion from aqueous solution[J]. Progress in Chemistry, 2016,28(12):1834-1846(12):1834-1846.
[43]	曾嵘,管蓉,李凯,等.交联壳聚糖/聚乙烯醇共混膜的制备及表征[J]. 高校化学工程学报, 2018,32(6):1435-1443. Zeng W, Guan R, Li K, et al. Preparation and characterization of crosslinked chitosan/polyvinyl alcohol blend membranes[J]. Journal of Chemical Engineering of Chinese Universities, 2018,32(6):1435-1443.
[44]	缪锦来,李光友,王波,等.硒化壳聚糖理化性质和分子结构的研究[J]. 中国海洋药物, 2000,(1):7-10. Miao J L, Li G Y, Wang B, et al. Study on the physical and chemical properties and the molecular structure of seleno-chitosan[J]. Chinese Journal of Marine Drugs, 2000,(1):7-10.
[45]	曲博.不同方法处理玉米秸秆制取木糖的研究[D]. 长春:吉林农业大学, 2018. Qu B. Study on different methods of treating corn stover to prepare xylose[D]. Changchun:Jilin Agricultural University, 2018.
[46]	张璐,周鑫斌,苏婷婷,等.叶面施硒对水稻各生育期镉汞吸收的影响[J]. 西南大学学报(自然科学版), 2017,39(7):50-56. Zhang W, Zhou X B, Su T T, et al. Effects of foliar application of selenium on cadmium and mercury absorption in different growth periods of rice[J]. Journal of Southwest University (Natural Science), 2017,39(7):50-56.