粉煤灰充填复垦土地风险评价及稳定化修复技术  

Risk Assessment of Reclaimed Land Filled with Fly Ash and Stabilization Remediation Technology

作　　者：杨秀红[1] 胡振琪[1] 张学礼[1] 

机构地区：[1]中国矿业大学(北京)土地复垦与生态重建研究所

出　　处：《科技导报》2006年第3期33-35,共3页Science & Technology Review

基　　金：国家高技术研究发展计划项目(2003AA322040)教育部高等学校博士学科点专项科研基金项目(20020290014)教育部新世纪优秀人才计划项目(NCET-04-0484)

摘　　要：通过对粉煤灰充填复垦地进行采样分析和生态风险评价,研究了粉煤灰充填复垦地土壤重金属污染程度及潜在的生态危害性。研究表明:复垦地土壤整体处于受污染状态,主要受到镉的污染,复垦土壤受重金属污染状况及其潜在的生态危害性有随复垦年限的增加而逐渐加重的趋势。盆栽试验表明,采用粘土矿物和微生物菌根技术可以修复镉污染土壤。The heavy metal contamination degree and latent ecological risk in reclaimed land filled with fly ash were investigated by the method of sampling analysis and evaluation of ecological risk. The results showed that the soil of reclaimed land was, as a whole, contaminated by heavy metal, especially the cadmium. Heavy metal contamination degree and latent ecological risk of soil in reclaimed land is gradually aggravated with the increase of reclamation time. The pot experiment results also suggest that clay mineral and microorganism mycorrhiza can remedy cadmium contaminated soils.

关 键 词：粉煤灰 充填复垦 风险评价 修复技术 

分 类 号：TD88[矿业工程—矿山开采]