无机-有机复配材料对Cd污染土壤的修复效应

Remediation effect of inorganic-organic composite materials on Cd contaminated soil

利用大田试验方法,对无机-有机复配材料对Cd污染土壤的修复效应进行分析和研究。其中无机材料主要以海泡石、蒙脱土以及骨粉为主,而有机材料主要包括菌渣、鸡粪。经过研究发现,无机-有机复配材料能够有效提高Cd污染土壤的pH值,pH值最多增加0.96个单位。并且对不同的受污染土壤进行检测,土壤中的TCLP提取态Cd含量都降低。其中骨粉+有机材料对修复土壤的过氧化氢酶和脲酶活性效果最佳。因此,利用无机-有机复配材料对修复Cd土壤可以获得预期效果,可以在当前的Cd污染土壤修复过程中进行推广应用。

field test method was used to analyze and study the remediation effect of inorganic-organic compound materials on Cd contaminated soil.The inorganic materials are mainly sepiolite,montmorillonite and bone meal,while the organic materials mainly include fungus residue and chicken manure.The study found that the inorganic-organic compound material can effectively improve the pH value of soil contaminated with Cd,and the pH value can be increased by O.96 units at most.And when different contaminated soils were tested,Cd levels dropped.Among them,bone meal+organic materials had the best effect on soil remediation activities of catalase and urease.Therefore,the use of inorganic-organic compound materials can achieve the expected effect on soil restoration of Cd,which can be popularized and applied in the current process of soil restoration of Cd pollution.