| 摘要 |
PURPOSE:To enhance crumb-forming action of heavy clay soil thereby to enhance 9 desalting effect of an anion, by employing a specific amount of a hydroxide of an alkaline earth metal in treating the heavy clay soil with basic aluminum chloride or basic aluminum nitrate. CONSTITUTION:In treating heavy clay soil with basic aluminum chloride or basic aluminum nitrate, the soil is improved by employing a hydroxide of an alkaline earth metal in an amount to provide a ratio MO/R2O3 of 0.5-5wt%, wherein M is an alkaline earth metal and R is Al or a combination of Al and trivalent Fe. |
