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标题：VYUŽITIE METÓDY SSE PRI STANOVENÍ PRÍSTUPNÝCH FORIEM RIZIKOVÝCH PRVKOV V PÔDE Z HĽADISKA ICH PRÍJMU RASTLINAMIAPLICATION OF SSE METHOD FOR ACCESSIBLE FORMS OF RISK ELEMENTS DETERMINATION IN SOLIS IN TERM OF THEIR INTAKE TO PLANTS
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作者：Tomáš Tóth ; Juraj Čéry ; Pavol Trebichalský 等
期刊名称：Potravinarstvo : Scientific Journal for Food Industry
印刷版ISSN：1338-0230
电子版ISSN：1337-0960
出版年度：2010
卷号：4
页码：348-357
出版社：Association HACCP Consulting
摘要：Significant amount of by-product such as biosludge is gained by using of alternative energy sources. Biosludge, decayed sludge, is a product which is arousen by biogas production after continual cofermentation of animal excrements and plant remains. Thus gained biosludge is possible to applicate into soil as alternative fertlilizer which has its characteristic properties, but also its risks. With the application of biosludge is connected also the possible risk of risk elements input into soil. Just the heavy metals content and the toxic elements limit the biosludge applicability as fertilizing substrate. By bioaccumulation the physical changes are often starting, e.g. reduction or oxidation of metals, but also to their metylation, by what the physiological effects are significantly changing. Soils must correspond with criterias, i.e. proper pH, sorption capacity, harmful compounds content in soil and in sludges, etc. On the base of gained results it could be stated, that in observed soils there is enhanced total content of Cd and Ni. Ni and Cd are the most represented in residual form to soil, which is not acceptable for plants. This fraction presents 75 % of total content in soil. Rate of acceptable form of Ni presents 6-11 % and Cd 11- 13 % in soil. Application of biosolid has not significant effect on changes of individual fractions of Ni and Cd in soil.
关键词：biosludge; heavy metals; mobility; SSE; cadmiumT