Purification of water and fertile soil with bentonite-like clays of the Belgorod Region

This paper presents the results of a comparative assessment effectiveness sorption purification aquatic medium and fertile soils using native forms bentonite clays deposits in Belgorod region (Russia) from heavy metal ions (Cu 2+ , Fe 3+ Cr Pb ) radionuclides ( 137 Cs, 85 Sr, 233 U и 239 Pu). It was revealed that during model water systems, most absorbing activity is shown by natural Polyana Nelidovka deposits, which have almost same ability to absorb ions. The efficiency aqueous solutions these cations taken at an initial concentration 0.1 mmol/l reaches 95%. established clay deposit also effective sorbent for cesium radionuclides. In terms ability, studied sample 5 times superior clinoptilolite, often used purify radiocesium.. with increase amount added sorbents, detoxification effect increased, is, content metals green mass decreases.