Tag Archives: Edward KRZYWY

The effect of granular fertilisers produced from industrial and municipal wastes on the content of some heavy metals in test plants

Edward KRZYWY, Ewa MOŻDŻER ? West Pomeranian University of Technology in Szczecin, Department of Land Cultivation and Environmental Chemistry, Faculty of Environmental Management and Agriculture Please cite as: CHEMIK 2013, 67, 7, 628?635 Abstract: In the experiment being carried out, the effect of granular fertilisers being produced from industrial waste products, i.e. CaSO4?2H2O (waste product in production of multicomponent mineral fertilisers), FeSO4?7H2O (waste product in production of titanium dioxide), coniferous and deciduous sawdust mixture, and municipal sewage sludge with addition of mineral fertilisers on cadmium, copper, chromium, nickel, lead and zinc contents in spring rape seeds and spring triticale grain. The results being obtained show that the granular fertilisers being tested did not increase the content of heavy metals (Cd, Cu, Cr, Ni, Pb and Zn) in test plants above the acceptable standards. In most fertilisation objects treatments with these granular fertilisers, differences between the content of respective heavy metals in test plants were not significant. The increasing doses of granular fertilisers in most fertilisation objects did not have any significant effect on the increase in the content...
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The use of industrial waste and municipal sludge for the production of fertilisation pellets

Edward KRZYWY, Ewa MOŻDŻER ? West Pomeranian University of Technology in Szczecin, Department of Land Cultivation and Environmental Chemistry, Faculty of Environmental Management and Agriculture Please cite as: CHEMIK 2013, 67, 7, 620-627 Abstract: Four fertiliser mixtures were prepared from industrial sewage sludge from ?Police? Chemical Plant SA, municipal sewage sludge from the Municipal Wastewater Treatment  lant in Stargard Szczeciński, the mixture of sawdust from coniferous and deciduous trees (in 1:1 ratio), iron (II) sulphate (VI) 7-hydrate, and urea. The mixtures underwent granulation. The factor facilitating the granulation process was the addition of sodium lignosulphonate (2% of the mixture weight). This produced pellets with average resistance to mechanical damage. The pellets were light and exhibited average resistance to mechanical damage as compared to granulated mineral fertilisers. The levels of macroelements in the fertilisation pellets depended on the chemical composition and quantity converted into the weight of components used for production. The highest levels of macroelements were found in the pellets composed of municipal sewage sludge, the mixture of sawdust from coniferous and deciduous trees, and aqueous solutions of iron...
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The impact of emission sources of the company FOSFAN S.A. in Szczecin on cadmium levels in soil and plants

Edward KRZYWY? West Pomeranian University of Technology in Szczecin, Department of Land Cultivation and Environmental Chemistry, Faculty of Environmental Management and Agriculture, Jacek CIUBAK ? FOSFAN S.A. in Szczecin, Ewa MOŻDŻER ? West Pomeranian University of Technology in Szczecin, Department of Land Cultivation and Environmental Chemistry, Faculty of Environmental Management and Agriculture Please cite as: CHEMIK 2013, 67, 7, 616-619 Abstract: The objective of the study was to determine the impact of emission sources of the joint-stock company FOSFAN SA in Szczecin on the cadmium levels in soil and grass. In the spring and autumn of 2009, 2010 and 2011, soil samples from the 0?20 cm soil layer and grass samples were collected. Cadmium levels were quantified in the collected soil and grass samples. The obtained results indicate that the total cadmium levels in the soil and grass samples were higher than average concentrations, but did not exceed the values that would indicate contamination of soils and plants. Key words: cadmium, soils, grass, mineral fertilisers Introduction In the atmosphere, cadmium originates mainly from emissions by the...
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