【摘要】 通过土柱实验模拟矿化垃圾以及矿化垃圾与污泥混合物在淋溶条件下重金属的淋失情况,并利用污染综合指数法分析矿化垃圾中重金属迁移对地下水的影响。结果表明淋溶的不同阶段对地下水易造成污染的金属元素有所不同,需要分阶段进行监控。淋溶初期需监测[As]、[Cr]、[Co]、[Cu]和[Mn];淋溶中期需监测[Ni]和[Pb];淋溶末期需对[Fe]进行监测。综合污染指数评价表明矿化垃圾以及矿化垃圾与污泥混合土壤的淋溶液对地下水造成潜在污染的最关键因子为Mn,其次是Fe。更多还原

【Abstract】 The washing away of heavy metals in aged waste and its mix with sludge was studied through soil column experiment.The pollution comprehensive index method is used to analyze the effects of heavy metal migration on underground water.The result showed that different heavy metals pose potential danger to underground water at different stages of showering so the supervision should be conducted according to separate stages.[As],[Cr],[Co],[Cu]and [Mn] should be supervised at early stage of showing;[Ni] and [Pb] at middle stage of showing;[Fe] at later stage of showing.The assessment by pollution comprehensive index method showed the key factors to pollute underground water in aged waste and its mix with sludge during showering are Mn and Fe.更多还原