摘要
周口北郊垃圾填埋场为非卫生填埋,已对周围地下水环境造成了污染。在建立污染物溶出模式的基础上,分析了该非卫生填埋场垃圾渗滤液中化学需氧量(COD)的变化规律,用WHI UnSat Suite软件HELP模块估计了停止填埋后的现状和采用地表防渗措施情况下渗滤液的渗漏量。结果表明,周口北郊垃圾在10a垃圾填埋过程中每年有1 000～5 000m3渗滤液进入含水层,其COD质量浓度大致为2 000mg/L。停止垃圾堆放后,在没有覆盖措施条件下,渗滤液渗漏量平均值为2 500m3/a。在垃圾表层铺设防渗措施可有效减少99%的渗漏量,但仍有12m3/a渗滤液渗漏进入含水层。
The landfill in northern suburb of Zhoukou is an unqualified landfill, and has been harmful for the surrounding environment. Based on establishment of contaminant leaching models, chemical oxygen demand （COD） of leachte from the landfill was analyzed. Leakages of the landfill with surface protection were measured and estimated that at the present situation by HELP software. The results show that about 1 000-5 000 m^3/a leachated into aquifer during the ten year landfilling, and the concentration of COD is about 2 000 mg/L. From stopping filling waste, the average value of leachate without any surface protect measures is about 2 500 m^3/a. With surface protect measures, however, the leachate can be reduced by 99%. But, there is always 12 m^3/a leakages leaehated into aquifer.
出处
《地质科技情报》
CAS
CSCD
北大核心
2012年第6期157-160,共4页
Geological Science and Technology Information
基金
中国地质调查局项目(1212010634505-2)
关键词
非卫生填埋场
化学需氧量
污染物溶出模式
HELP
渗漏量
unqualified landfill
chemical oxygen demand
pollutant leaching model
HELP
leaehate capacity
