摘要
垃圾填埋场的主要危害在于垃圾淋滤液对地下水的污染.以洛阳市某垃圾场为例,运用MODFLOW和MT3D软件模拟分析以氯离子为代表的污染组分在未来对地下水的污染程度.结果表明:(1)在垃圾场运营早期,地下水中的污染组分浓度增加明显,污染羽快速向下游扩展,迁移距离达到700 m,而随着污染物迁移距离的扩大其浓度和扩展速度都开始降低;(2)污染物运移距离在2050年接近1 km,将会影响当地居民的饮水安全,因此必须采取必要的防护措施.
Leachate is the main medium for the transport of contaminants from the landfill to groundwater.This report takes certain landfill in Luoyang as an example,the modular 3D finite difference groundwater flow model（MODFLOW） and modular 3D finite difference mass transport model（MT3D） software were used to simulate groundwater flow and leachate transport.The results indicated that：（1） In operating early stage of landfill leachate,the pollution component is increasing in groundwater,pollute plume moves to downstream and moving distance amounts to 700 m.But both the concentration and moving speed begin to decrease by degrees with increase of moving distance of pollution;（2） In 2050,the moving distance of pollutants will be near to 1 km and it will influence drinkwater safety of local residents.Therefore,the government must adopt necessary protection measures.
出处
《湖南师范大学自然科学学报》
CAS
北大核心
2012年第6期89-92,共4页
Journal of Natural Science of Hunan Normal University
基金
国家自然科学基金资助项目(40802057)
关键词
垃圾填埋场
地下水
污染
landfill leachate
groundwater
pollution
