CAJ | 학술논문

为修复重金属复合污染的土壤，采用连续提取法，通过盆栽实验研究了海泡石与菌根对土壤重金属Pb、Cd、zn形态的影响。结果表明：海泡石可使Pb、Cd的可交换态转化成其他4种形态，使zn的可交换态转化成碳酸盐结合态、有机物结合态和残渣态；茵根能显著增加可交换态的Pb、Cd、Zn浓度，降低了Pb的碳酸盐结合态、Cd的铁锰氧化态、Zn的有机物结合态的浓度。海泡石和茵根联合处理同单施海泡石的结果相似，说明联合修复中对重金属形态的影响海泡石起主导作用。该研究证实了海泡石可以调节重金属Pb、Cd、Zn的形态，从而降低污染土壤中重金属的生物有效性。
위수복중금속복합오염적토양，채용련속제취법，통과분재실험연구료해포석여균근대토양중금속Pb、Cd、zn형태적영향。결과표명：해포석가사Pb、Cd적가교환태전화성기타4충형태，사zn적가교환태전화성탄산염결합태、유궤물결합태화잔사태；인근능현저증가가교환태적Pb、Cd、Zn농도，강저료Pb적탄산염결합태、Cd적철맹양화태、Zn적유궤물결합태적농도。해포석화인근연합처리동단시해포석적결과상사，설명연합수복중대중금속형태적영향해포석기주도작용。해연구증실료해포석가이조절중금속Pb、Cd、Zn적형태，종이강저오염토양중중금속적생물유효성。
This paper is an attempt to study the effect of sepiolite and mycorrhizal on soils form using sequential extraction procedure for the remediation of compound heavy metal contaminated soil. The re- suits show that adding sepiolite can trigger the transformation of Pb and Cd from their exchangeable forms to another four forms, thus accelerating the transformation of Zn from exchangeable forms to carbonate forms, organic forms and residual forms. Moreover, adding mycorrhizal can produce a significant increase in the concentration of Pb, Cd and Zn in their exchangeable forms and decrease in the carbonate forms concentrations of Pb, Fe/Mn-oxidation forms concentrations of Cd, organic forms concentrations of Zn. The combination of sepiolite and mycorrhizal gives a similar effect to only using the treatment of sepiolite, explaining that sepiolite plays the dominant role in affecting the form of heavy metal in the combined treatment. Research confirms that sepiolite can regulate the heavy metal forms and reduce the biological effectiveness of heavy metal in contaminated soil.