镎、钚是某些放射性废物中的关键核素 ,无论是中低放废物泥浆的水力压裂法处置还是高放废物的深地质处置 ,都必须首先了解处置区和处置条件下水介质中核素镎、钚的存在形式。本文选用地球化学模式程序 EQ3/6计算了低中放和高放废物中关键核素镎、钚在处置区水介质中的存在形式 ,并讨论了水介质和 p H条件对核素存在形式的影响。结论是核素镎、钚的存在形式主要受水介质条件的影响 ,但 p H条件也是影响核素镎、钚存在形式的重要因素 镎 Plutonium, the key nuclide of some radioactive waste, whether it is hydraulic fracturing of low and medium-waste dumps or deep-geological disposal of high-level waste, must first know about the radionuclide nuclides in the disposal area and disposal conditions镎, the existence of plutonium form. In this paper, the geochemical model program EQ3 / 6 was used to calculate the existence forms of key nuclides 镎 and plutonium in the low, medium and high level radioactive waste in the water medium of the disposal area. The effects of aqueous medium and p H on the existence form of nuclide influences. The conclusion is that the forms of nuclide 镎 and plutonium are mainly affected by the conditions of water medium, but the p H condition is also an important factor that affects the existence form of nuclides 镎 and plutonium