Adsorption of some toxic metal ions on the new natural biologically active substance of shunlite

Аннотация

The adsorption of Cu, Zn, Pb and Hg ions on shunlite has been studied. It is established that there is almost no adsorption at pH 2, while at pH 6.5 the sorption capacity of shunlite increases in the following order: Cu ~ Zn < Hg < Pb. In the case of Cu ions, the presence of fulvic acid leads to a tenfold increase in the distribution coefficient and to a twofold growth in the maximum sorption capacity.