###
中国无机分析化学:2022,12(3):31-39
←前一篇   |   后一篇→
本文二维码信息
码上扫一扫!
吉林某弹药销毁场土壤炸药污染调查及其赋存状态研究
孟欢1, 朱勇兵2, 王 晴2, 聂钰淋1, 王 强1, 赵三平2
(1.中南大学化学化工学院;2.国民核生化灾害防护国家重点实验室)
Investigation on Soil Explosive Pollution and Occurrence Status of a Certain Ammunition Destruction Site in Jilin Province.
Meng Huan1, Zhu Yong-bing2, wang qing2, 聂钰淋1, wang qiang1, zhao san-ping2
(1.School of Chemistry and Chemical Engineering, Central South University;2.State Key Laboratory of NBC Protection for Civilian)
摘要
图/表
参考文献
相似文献
本文已被:浏览 150次   下载 3
投稿时间:2021-12-20    修订日期:2021-12-28
中文摘要: 研究吉林某军事弹药销毁场土壤炸药污染程度以及炸药在土壤中的赋存状态,为炸药和重金属污染土壤修复提供针对性策略。采集了某弹药销毁厂焚烧销毁区表层土壤样品,分析了其理化性质和常见重金属元素含量,测试了土壤全样和不同颗粒度土壤样品中炸药污染物的含量,并结合热重-傅里叶变换红外光谱(TGA-FTIR) 对炸药污染土壤样品热力学行为的表征,探讨了炸药污染物的赋存状态,炸药和重金属组合污染特征等。土壤中含有高浓度的TNT、DNT、ADNT、RDX等炸药污染物及其降解产物,并表现出土壤细颗粒富集趋势,其中土壤全样中TNT总浓度达到了1.66×104 mg·kg-1,远远高于EPA推荐的土壤TNT指导限值,RDX超过了以土壤环境为目标的指导限值;销毁活动还造成了土壤中Pb、Cu、Zn重金属浓度的升高,分别为400 mg·kg-1,318 mg·kg-1,1030 mg·kg-1。土壤中受到重金属和有机质等因素的影响,土壤中经过长期老化的炸药污染物的热解行为明显不同于自由态的炸药分子,热解温度升高、过程延长。在销毁区炸药污染土壤的修复中,应加强炸药污染物与重金属相互作用的研究,并在修复治理实践中采取协同修复的策略。
Abstract:The pollution degree of explosives in soil of a military ammunition destruction site in Jilin Province and the occurrence state of explosives in soil were studied in order to provide targeted strategies for remediation of explosives and heavy metals contaminated soil。collected surface soil samples from the incineration area of an ammunition destruction plant, analyzed its physical and chemical properties and the content of common heavy metal elements, tested the content of explosive contaminants in the whole soil sample and soil samples of different particle sizes, and combined the thermogravimetric-Fourier analysis Transformation infrared spectroscopy (TGA-FTIR) characterizes the thermodynamic behavior of explosive contaminated soil samples, discusses the occurrence state of explosive pollutants, and the characteristics of explosive and heavy metal combined pollution. The soil contains high concentrations of TNT, DNT, ADNT, RDX and other explosive pollutants and their degradation products, and shows a tendency to enrich soil fine particles. The total concentration of TNT in the entire soil sample reached 1.66×104 mg·kg-1, which is far higher than the EPA recommended soil TNT guide limit, RDX exceeds the guide limit for the soil environment; The destruction activities also resulted in an increase in the concentration of Pb, Cu and Zn heavy metals in the soil to 400 mg· kg-1,318 mg·kg-1 and 1030 mg·kg-1, respectively. Affected by factors such as heavy metals and organic matter in the soil, the pyrolysis behavior of explosive pollutants that have been aged for a long time in the soil is significantly different from that of free explosive molecules, and the pyrolysis temperature increases and the process prolongs. In the remediation of explosive contaminated soil in the destruction zone, the study of the interaction between explosive pollutants and heavy metals should be strengthened, and a collaborative remediation strategy should be adopted in the practice of remediation.
文章编号:     中图分类号:    文献标志码:
基金项目:国家自然科学基金面上项目(21876203)、中国科学院重点部署项目(KGFZD-135-19-09)
引用文本:
孟欢,朱勇兵,王 晴,聂钰淋,王 强,赵三平.吉林某弹药销毁场土壤炸药污染调查及其赋存状态研究[J].中国无机分析化学,2022,12(3):31-39.
Meng Huan,Zhu Yong-bing,wang qing,聂钰淋,wang qiang,zhao san-ping.Investigation on Soil Explosive Pollution and Occurrence Status of a Certain Ammunition Destruction Site in Jilin Province.[J].Chinese Journal of Inorganic Analytical Chemistry,2022,12(3):31-39.

我们一直在努力打
造,精品期刊,传
播学术成果

全国咨询服务热线
86-10-63299759

杂志信息

期刊简介

相关下载

联系我们

电话:010-63299759

传真:010-63299754

QQ:XXXXXXX

Email:zgwjfxhx@163.com

邮编:100160

地址:北京市南四环西路188号总部基地十八区23号楼

关注微信公众号