Izvorni znanstveni članak
Transformation of Heavy Metal Compounds during the Remediation of Contaminated Soils
Tatiana Minkina
; Southern Federal University, Faculty of Biology and Soil Science, Soil Science Department, 813, 194/1, prosp. Stachki, Rostov-on-Don, 344090, Russia
Galina Motusova
; Moscow State University, Faculty of Soil Science, Department of Soil Chemistry, Moscow, Russia
Saglara Mandzhieva
; Southern Federal University, Faculty of Biology and Soil Science, Soil Science Department, 813, 194/1, prosp. Stachki, Rostov-on-Don, 344090, Russia
Olga Nazarenko
; Don State Agrarian University, Department of Agriculture, Rostov region, Russia
Ivan Šimunić
; University of Zagreb, Faculty of Agriculture, Department of Soil Amelioration, Svetošimunska 25, 10000 Zagreb, Croatia
Sažetak
The effect of ameliorants, chalk, glauconite and semidecomposed cattle manure, on ordinary chernozem contaminated with Zn and Pb was studied in a long-term field experiment. The application of ameliorants significantly decreased the mobility of metals. Their effect depended on the ameliorant and was most significant at the simultaneous application of chalk and manure. This effect was presumably due to the strong binding of metals by carbonates through chemisorption and formation of lowsoluble Zn and Pb compounds and to the additional fixation in the form of complexes at the addition of organic material. The share of loosely bound metal compounds in the contaminated soils decreased to the level typical for the clean soils or even below. The general evolution of the transformation of metal compounds (from less to more firmly bound compounds) accelerated by ameliorants remained for both metals.
Ključne riječi
soil; heavy metal compounds; transformation; ameliorants
Hrčak ID:
68128
URI
Datum izdavanja:
24.3.2011.
Posjeta: 1.128 *