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451155 
Journal Article 
Effect of different organic material on lead adsorption in soils of Aligarh district 
Bansal, OP 
2008 
Yes 
Journal of the Indian Chemical Society
ISSN: 0019-4522 
85 
1 
59-63 
English 
The effect of different organic material (FYM, sewage sludge and poultry litter) on adsorption-desorption of lead on three soil samples of Aligarh district was studied. The adsorption isotherms were of 'L' type and adsorption-desorption data conformed to Freundlich isotherm equation. The adsorption increased with the increase in organic material and followed the order : sewage sludge > FYM > poultry litter. The adsorptivity of soils was in order : Soil No. 1 > 2 > 3. The adsorption capacity was significantly positively correlated with soil organic carbon and soil-clay-content. The desorption of lead was more by CaCl2 than water and followed the order : soil 3 > 2 > 1. The desorption of lead decreased with the addition of organic material suggesting a less availability of lead to crops grown on such soils. The complete desorption of lead did not take place. 
adsorption; desorption; lead; soils