摘要
钢铁冶炼工序复杂,冶炼过程产生的污染物质如未经处理直接泄露,通过包气带入渗至含水层对地下水质量造成威胁.为探究污染物在地下水中的运移情况,以某钢铁厂为研究区域,使用GMS软件构建相应的地下水数学模型.选取研究区域内超标较为严重或普遍的1,2-二氯乙烷、石油烃类、苯和萘为典型污染物,预测研究区域内的典型污染物在地下水中运移的过程.结果表明:在研究区域内典型污染物随着地下水的流向向下游运移,并且随着时间的推移其浓度不断降低.在模拟期末(30 a)研究区内1,2-二氯乙烷、石油烃类和苯的最高浓度分别为1.52 mg/L、11.16 mg/L和3.55 mg/L,研究区内萘浓度已低于一类修复目标值.其污染羽前锋尚未影响到作为研究区南部边界的南淝河.
Abstract
The process of iron and steel smelting is complicated.If the pollution produced in the smelting process is leaked directly without treatment,it will penetrate into the aquifer through the aeration zone and pose a threat to the quality of groundwater.In order to investigate the movement of pollutants in groundwater,a steel factory was taken as the research area,and the corresponding groundwater mathematical model was constructed by using GMS software.1,2-dichloroethane,petroleum hydrocarbons,benzene and naphthalene were selected as typical pollutants in the study area,and the migration process of typical pollutants in the study area was predicted.The results show that typical pollutants migrate downstream with the flow of groundwater in the study area,and their concentrations decrease over time.At the end of the simulation period(30 a),the highest concentrations of 1,2-dichloroethane,petroleum hydrocarbons and benzene in the study area were 1.52 mg/L,11.16mg/L and 3.55 mg/L,respectively,and the concentration of naphthalene in the study area was lower than the remediation target value.Its pollution plume has not yet affected the Nanfei River,the southern boundary of the study area.
基金项目
国家自然科学基金资助项目(42072201)
安徽高校协同创新项目(GXXT-2021-017)
北京建工环境修复股份有限公司科技项目(JGXF21-E04-T08)
国家科技期刊平台
NSTL
万方数据