Effect of some organic compounds on the mobility of some trace metals through soil amended with fly ash

The effects of some organic compounds, viz. formic acid, acetic acid, methanol, ethanol, formaldehyde, acetaldehyde, acetone and ethyl methyl ketone on the mobility of some trace metals, viz. Co, Zn, Cu, Ag and Pb through soil amended with fly ash have been investigated in an alkaline fine sandy loam soil of Aligarh district (U.P.). The results indicate decrease in the mobility of trace metals with increasing dosage of fly ash in soil but with a variation in intensity by use of organic compound as a mobile phase. The mobility order is Co > Zn > Cu > Ag > Pb in case of organic acids and alcohols, and Co > Cu > Zn > Ag > Pb for aldehydes and ketones. The effect of organic chemicals on the translocation of metals follows the sequence : formic acid > acetic acid > methanol > acetone > formaldehyde > ethyl methyl ketone > acetaldehyde > ethanol.