【作者】 柳伟； 王亚婷； 杜焰玲； 陈银松； 陶红群；

【Author】 Liu Wei;Wang Yating;Du Yanling;Chen Yinsong;Tao Hongqun;Sichuan Chuandi Environmental Technology limited liability company;Chengdu Academy of Environment Sciences;

【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】 以探索累积型环境风险对浅层地下水影响量化为目的,以数值模拟为手段定量分析累积型环境风险对地下水影响;在分析园区及企业累积型环境风险和水文地质条件基础上,确定研究区及相关分区、重点企业与累积型环境风险源,利用Visual Modflow数值模拟软件建立研究区地下水渗流模型和溶质运移模型,通过地下水水位测量和水质检测对构建模型进行识别与验证。以六价铬与氯化物为预测因子。结果表明:持续渗漏3650 d,地下水中Cr6+最大超标范围771 m~2、最大迁移距离为40 m,氯化物最大超标范围7290 m~2、最大迁移距离为110 m,超标范围超出企业边界但位于园区内,以低浓度向下游羽状扩散,为累积型环境风险下地下水影响量化研究及类似条件下管控与治理修复等提供了理论基础。更多还原

【Abstract】 To explore the quantification of the impact of cumulative environmental risks on shallow groundwater, use numerical simulation as a means to quantitatively analyze the impact of cumulative environmental risks on groundwater; based on the analysis of the cumulative environmental risks and hydrogeological conditions of the park and enterprises, determine the research area and related subregions、 key enterprises and cumulative environmental risk sources, use Visual Modflow numerical simulation software to establish groundwater seepage model and solute transport model in the study area, identify and verify the constructed model through groundwater level measurement and water quality inspection. Using hexavalent chromium and chloride as predictors, the results show that: continuous leakage 3650 d, The maximum exceeding range of hexavalent chromium in groundwater is 771 m2、 the maximum migration distance is 40 m, the maximum exceeding range of chloride is 7290 m2、the maximum migration distance is 110 m, exceeding standards beyond the boundaries of the enterprise but located in the park,downstream plume diffusion at low concentration, it provides a theoretical basis for quantitative research on groundwater impact under cumulative environmental risks and risk management、governance and restoration under similar conditions.更多还原