复杂水文地质条件下某非正规垃圾填埋场污染迁移特征研究  

Study on Pollution Migration Characteristics Ofan Informal Landfill Site Under Complex Hydrogeological Conditions

作　　者：吴明洲 郑玉虎 张启 WU Mingzhou;ZHENG Yuhu;Zhang Qi(Nanjing University environmental planning and Design Institute Group Co.,Ltd.,Nanjing 210093,China;Nanjing University environmental planning and Design Institute(Jiangsu)Co.,Ltd.,Nanjing 210093,China)

机构地区：[1]南京大学环境规划设计研究院集团股份公司,南京210093 [2]南大环境规划设计研究院(江苏)有限公司,南京210093

出　　处：《环境影响评价》2023年第3期121-124,共4页Environmental Impact Assessment

摘　　要：非正规垃圾填埋场由于缺少防渗措施,渗滤液易下渗至土壤和地下水环境中,造成土壤和地下水污染。该文以某非正规垃圾填埋场为例,研究裂隙、断层发育区填埋场污染迁移特征。结果表明,裂隙介质为污染物迁移提供了优势通道,形成优先流,尤其以DNAPL类污染物为主,该类物质不易在土壤环境中累积,但易迁移至地下水饱和带中,并沿裂隙发育方向迁移扩散,需重点关注并及时治理修复。Due to the lack of anti-seepage measures in informal landfills,leachate is easy to infiltrate into the soil and groundwater environment,resulting in soil and groundwater pollution.Taking an informal landfill as an example,this paper studies the pollution migration characteristics of the landfill in the fracture and fault development area.The results show that the fissure medium provides a dominant channel for the migration of pollutants and forms a preferential flow,especially DNAPL pollutants.These substances are not easy to accumulate in the soil environment,but are easy to migrate to the groundwater saturation zone and migrate and diffuse along the direction of fissure development.It needs to be paid special attention to and timely extracted for treatment and repair.

关 键 词：非正规垃圾填埋场 裂隙介质 DNAPL 

分 类 号：P641.2[天文地球—地质矿产勘探]