Field remediation of Cu/Cd polluted soil by apatite and other amendments
磷灰石等改良剂对重金属铜镉污染土壤的田间修复研究

The amelioration effects of different soil amendments, including apatite, lime, charcoal, pig manure and iron powder, were tested under the field experiment for the remediation of Cu and Cd contaminated soil. The results showed these amendments decreased the concentrations of Cu and Cd in soil solution and increased soil solution pH, but the amelioration effect decreased with time. Available Cu decreased significantly but available Cd changed little. Apatite, lime, charcoal increased biomass and improved absorption capacity of Cu and Cd of ryegrass more than pig manure, thus should be favorable for the remediation of the contaminated soil.