Abstract

This article researches the problem of theviolation of ecological balance in the ecosystem that is noticedin the last century and caused by the wastes of a huge amountof pollutants from anthropogenic sources. This problem causesmuch worries of the entire humankind. The given articlereveals a problem of weeding soil from heavy metals, inparticular from arsenic and mercury. The results of theresearches to detect chemical surface of sorbents and theircolloid-chemical and absorption-structural, ionic exchange andcomplex building properties serve to explain the migration ofsubstances and also for rational selection of natural sorbents atthe time of their using in different nature protectingtechnologies. Authors got a new geochemical barrier,consisting of a mixture of the utilized bird's dung, a marblecrumb and a peroxide of calciumwith the high absorbentactivity. The research results allow to eliminate undesirableinfluence of heavy metals on plants and to get ecological clearproducts.