基于GMS的某动物蛋白生产厂区地下水污染数值模拟与预测

摘要

基于滁州市来安县区域水文地质条件,利用GMS软件中FEMWATER模块建立了研究区地下水水流和溶质运移数学模型,对该县某动物蛋白生产厂区的CODCr和BOD在非正常工况条件下渗漏进入地下水中的迁移趋势和环境影响进行了预测评价.地下水污染数值模拟结果表明:生产厂区中CODCr和BOD在第30天末水平方向上最大扩散距离分别为110m和135m,对应中心点浓度分别为1800 mg/L和770mg/L;在不进行防渗的情况下,CODCr和BOD浓度较高,渗漏污染运移距离较长,渗漏污染对潜水水质影响较大.%The groundwater flow and solute transport mathematical model was established based on FEMWATER module of GMS software according to the hydrogeological condition in Lai'an county,Chuzhou.The trend of migration and the environmental impact of CODCr and BOD in groundwater are predicted and evaluated under the abnormal working conditions in an animal protein production site.The results of numerical simulation show that the maximum migration of CODCr and BOD are 110 m and 135 m after 30 days in production area respectively,and the corresponding concentration are 1800 mg/L and 770 mg/L.In addition,the migration of CODCr and BOD are longer with high concentration under the absence of seepage prevention measures which resulting in a significance impact to the quality of phreatic water.