engleski

Removal of lead ions by a fixed bed of clinoptilolite-the effect of the influent flow

The process of removal of lead ions from aqueous solutions by ion exchange is usually performed by the batch method or by the column method. This paper examines the performance in a column filled with natural zeolite clinoptilolite. It is becoming one of the most important natural inorganic cation exchangers with high exchange capacity and selectivity for lead ions, and compatibility with the environment. The efficiency of the column method depends on dimensions of the glass column, particle size and depth of bed of clinoptilolite, and the flow and concentration of the aqueous solution of lead ions. This paper intends to optimise the flow of the influent solution with the time needed for exhaustion and with the capacity of the fixed bed of clinoptilolite.

lead ions; clinoptilolite; fixed bed; breakthrough curve

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