Remediation of Pb-, Zn- and Cd-contaminated soils in Austria: necessity of pot and field experiments for evaluation
Metal contaminated arable sites are mostly due to anthropogenic activities such as mining and smelting or farming practice and en tail risks for environment and human hea|th. Searching for alternative, cheap and easy manageable measures were the objectives of this study. The application of soil amendments can provide an alternative to prevent the transfer of metals to the food chain and to surrounding eco- systems. The choice of cultivars, which exclude contaminants, is an additionally possibility to reduce them in the food chain. Several soil amendments (e. g. gravel sludge, red mud) and barley varieties (e. g. Hordeum distichon cv. HELLANA, BODEGA) were tested in pot and field experiments on Pb, Zn and Cd contaminated soils. The pot experiment yielded promising results, e. g. reduction of Cd- uptake up to 62％. In the field, only the extractable fraction was reduced in the first year, and plant uptake responded less consistently. Due to adjustments in the following year results improved.
Gravel sludge in-situ immobilisation metal-excluding cultivars red mud
W. Friesl-Hanl J. Friedl K. Platzer O. Horak M. H. Gerzabek
Department of Environmental Research, Austrian Research Centers GmbH ARC, A-2444 Seibersdorf Institute of Soil Research, University of NaturalResources and Applied Life Sciences, Gregor-Mendel
国际会议
第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)
北京
英文
164-165
2007-07-15（万方平台首次上网日期，不代表论文的发表时间）