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A study of phosphate adsorption by four Bangladesh soils

Authors:	Mesbahul Karim Farrukh Ahmed Aminul Islam

Institution:	Institute of Nuclear Agriculture, Dacca Bangladesh

Abstract:	The adsorption curves for four soils were divided into segments I, II and III. Segment I ( $< 2 μg P/ml equil. concn.$ ) and segment II (2–150 μg P/ml equil. concentr.) conformed to the Langmuir equation similar to that of pure materials like gibbsite, pseudoboehmite and kaolinite, whereas segment III $(> 75–150 μ g P/ml equil. concn.)$ conformed to the Freundlich equation and was unlike the previous finding of linear relationship for pure materials.

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