CAJ | 학술논문

测定了硫酸锰渣污染土壤中Cu,Zn,Cd,Pb,Mn的总量和各形态含量.结果表明重金属总量远超过环境背景值和土壤环境二级标准.重金属各形态分布特征:Cu,有机态>残渣态>铁锰氧化态>碳酸盐态>可交换态;Zn,残渣态>铁锰氧化态>有机态>碳酸盐态>可交换态;Cd,铁锰氧化态>可交换态>碳酸盐态>残渣态>有机态;Pb,铁锰氧化态>残渣态>有机态>碳酸盐态>可交换态;Mn,铁锰氧化态>残渣态>可交换态>有机态>碳酸盐态.重金属的生物可利用性系数和迁移系数均为Cd>Mn>Pb>Cu>Zn.
측정료류산맹사오염토양중Cu,Zn,Cd,Pb,Mn적총량화각형태함량.결과표명중금속총량원초과배경배경치화토양배경이급표준.중금속각형태분포특정:Cu,유궤태>잔사태>철맹양화태>탄산염태>가교환태;Zn,잔사태>철맹양화태>유궤태>탄산염태>가교환태;Cd,철맹양화태>가교환태>탄산염태>잔사태>유궤태;Pb,철맹양화태>잔사태>유궤태>탄산염태>가교환태;Mn,철맹양화태>잔사태>가교환태>유궤태>탄산염태.중금속적생물가이용성계수화천이계수균위Cd>Mn>Pb>Cu>Zn.
The total amount of Cu, Zn, Cd, Pb, Mn in soil polluted by manganese sulphate residue and the contents of each species of these heavy metals were determined. The distribution characteristics of the heavy metal species were analyzed. The results indicate that the total amount extremely exceeds that of the environment background and the second grade of soil environment quality standard. The distribution characteristics of the heavy metal species are as following orders : Cu, organically bounded species > residua species > Fe-Mn oxide species > carbonate species > exchangeable species; Zn, residua species > Fe-Mn oxide species > organically bounded species > carbonate species > exchangeable species; Cd, Fe-Mn oxide species > exchangeable species > residua species > carbonate species > organically bounded species; Pb, Fe-Mn oxide species > residua species > organically bounded species > carbonate species > exchangeable species; Mn, Fe-Mn oxide species > residua species > exchangeable species > organically bounded species > carbonate species. The orders for coefficients of bioavailability and migration of heavy metals are both Cd > Mn > Pb > Cu > Zn.