Archive > Volume 36 Issue 4 > 1999,36(4):477-483. DOI:10.11766/trxb199806180407 CSTR:[cstr] Prev Next
EFFECT OF HUMUS ON THE ACTIVITY OF MINERAL-BOUND Hg
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Abstract:
Experimental results indicated that fulvic acid can significantly promote the volatilization of MnO2-Hg,Fe2O3-Hg and kaolinite-Hg, but suppress that of bentonite-Hg and CaCO3-Hg. Generally brown humic acid can enhance the volatilization of all the mineral-bound Hg except for Fe2O3-Hg. The effect of grey humic acid is the weakest. The influence of humus fractions on the activity of mineral-bound Hg is dependent on the complex capacity and complex stability of humus fractions with Hg, adsorption capacity and adsorption strength of the mineral with Hg as well as the interaction characteristics between humus fractions and minerals.
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