摘要
分析研究了某老垃圾填埋场中重金属对环境的影响。填埋场西南边的池塘底泥中的重金属含量远远高于池塘水体中的重金属含量。其下伏土层中重金属影响的深度达到地面以下20~25m,在这个深度内,Cd、Pb、Zn、Cu、Ni均出现峰值;对比10a前的资料显示,以惰性著称的重金属在地下土层介质构成的复杂氧化还原环境里,表现出了一定的活动性和迁移性。在10a间,Pb和Cd在土层剖面中的迁移速率为1.5m/a(即4.8×10-6cm/s),在该垃圾填埋场的下伏土层中属于弱迁移性物质。
This paper studies how the heavy metals in the old landfill affect the environment.It is found that their quantity in the ground mud of the pond is by far higher than that in the pond water to the northwest of the landfill.While the heavy metals in the underlying soil lie twenty to twentyfive meters under the ground,where cadmium,lead,zinc,copper and nickel have high values.Compared with the datum ten years ago the heavy metal with celebrated inertia transfers in the complex redox environment composed of the soil.The transferring speed of cadmium and lead through the section soil is 1.5 meters a year(4.8×10-6 centimeters a second) during ten years.
出处
《地质科技情报》
CAS
CSCD
北大核心
2003年第3期87-90,共4页
Geological Science and Technology Information
基金
武汉市科委国际合作科研项目"武汉市垃圾填埋场环境污染及防治技术研究