周口北郊垃圾填埋场渗滤液的渗漏量及COD变化模拟分析  

Modeling Analysis of Leakage and COD of Leachate from the Landfill in Zhoukou Northern Suburb

作　　者：宋启龙[1,2] 靳孟贵[1] 解世勇[1] 王会敏 

机构地区：[1]中国地质大学环境学院,武汉430074 [2]华北有色工程勘察院,石家庄050021

出　　处：《地质科技情报》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)

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.

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 

分 类 号：X799.3[环境科学与工程—环境工程]