山东省汶泗河冲洪积平原地下水污染评价与安全供水对策

Countermeasures of Groundwater Pollution Assessment and Safety Water Supply in Alluvial-diluvial Plain in Wensihe River in Shandong Province

在对汶泗河冲洪积平原水文地质条件和污染源现状进行阐述的基础上,对不同含水岩组无机组分指标进行了分析,表明浅层孔隙水和部分地区岩溶裂隙水无机组分含量大幅增高,深层孔隙水无机物含量则变化不大。在有机污染方面,浅层孔隙水有机物检出率26.8%,但含量很低,远未达到饮用水标准限值;岩溶裂隙水有机物检出率46.7%,检出率相对较高,局部地段有机物超标;深层孔隙水有机物基本未检出。该区地下水污染评价结果表明,浅层孔隙水和岩溶裂隙水无机污染呈面状污染特征,且污染程度较重,而有机污染则呈现点状污染特征,且污染程度总体较轻。对研究区地下水污染现状,提出了地下水安全供水对策。

Based on exposition of hydro-geological condition and pollution sources status of alluvial-diluvial plain of Wensi river,indexes of inorganic components of different aquifers are analyzed in this paper.The conclusions show that contents of inorganic components of shallow pore water and karst fissure water in some areas increase greatly,while the content of inorganic matter of deep pore water changes slightly.From the aspect of organic pollution,the detection rate of organic compounds of shallow pore water is 26.8% and the content is very low,which is far from limit value of drinking water standard.The detection rate of karst fissure water is 46.7%,comparatively high,and the organic compounds are over standard in partial section.The organic compounds in deep pore water are basically not detected.As showed by the results of groundwater pollution assessment in this area,it is showed that the inorganic pollutions of shallow pore water and karst fissure water have characteristics of area shape feature and the pollutions are relatively severe.The organic pollutions have characteristics of point feature and the pollutions are milder overall.Countermeasures of safety groundwater supply are put foward based on groundwater pollution status in research area in this paper.