【作者】 柳伟； 王亚婷； 李静文； 陈银松； 陶红群；

【Author】 Liu Wei;Wang Yating;Li Jingwen;Chen Yinsong;Tao Hongqun;Sichuan Chuandi Environmental Technology limited liability company;Chengdu Research Institute of Environmental Protection;

【机构】 四川川坔环境科技有限责任公司； 成都市环境保护科学研究院；

【摘要】 为探索突发性环境风险下浅层地下水中污染物运移规律,以园区及周边水文地质条件为基础确定研究区及分区,从突发性环境风险角度选取企业和风险源,利用Visual Modflow数值模拟软件建立研究区地下水渗流模型和研究对象溶质运移模型,通过实测地下水水位等对地下水渗流模型进行识别与验证,掌握地下水渗流特征并验证相关参数。以铜、镍与氯化物为预测因子,结果表明:泄漏后730 d内,铜超标范围逐步减小、镍的超标范围逐渐增大,铜与镍最大迁移距离均增加、30 d后污染物羽整体向下游迁移,氯化物未见超标。该研究获取的突发性风险下地下水中铜、镍与氯化物的污染与影响范围、迁移特征可为后续及类似条件下污染防治及监测等事宜提供理论依据。更多还原

【Abstract】 To explore the transport law of pollutants in shallow groundwater under sudden environmental risks, determine the study area and division based on the hydrogeological conditions of the park and surrounding areas, select companies and risk sources from the perspective of sudden environmental risks, use Visual Modflow numerical simulation software to establish the groundwater seepage model in the study area and the solute transport model of the research object, Identify and verify the groundwater seepage model by actually measuring groundwater level, grasp the characteristics of groundwater seepage and verify related parameters. Use copper、 nickel and chloride as predictors, the results show: within 730 d after the leak, copper over-standard range is gradually reduced, nickel exceeding the standard range gradually increases, the maximum migration distance of copper and nickel has increased, after 30 days, the pollutant plume migrates downstream as a whole, the chloride did not exceed the standard. The study obtained the sudden risk of the pollution of copper、 nickel and chloride in groundwater and the scope of influence and migration characteristics, provide theoretical basis for pollution prevention and monitoring under follow-up and similar conditions.更多还原