@misc{Iżewska_Anna_Assessment, author={Iżewska, Anna and Wołoszyk, Czesław and Sienkiewicz, Stanisław}, howpublished={online}, publisher={Zielona Góra: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego}, language={pol}, language={eng}, abstract={The work presents physical, chemical and energetic properties of sludge from industrial and municipal sewage treatment plant in West Pomeranian Voivodeship. Among many macronutrients, sludge contains much of the following: nitrogen, phosphorus, calcium and magnesium, but little potassium. Total content of heavy metals (Cd, Cr, Cu, Mn, Ni, Pb, Hg, Zn) was lower than norms admitting sludge for natural, including agricultural use, presented in the Order of Ministry of the Environment14.}, abstract={Much content differentiation of particular sludge components indicates on the necessity to analyze each portion before its use. The kind of sludge (municipal, industrial) and the way of processing (thickening, drainage, drying) is embodied in differentiation in the content of organic dry matter and total organic carbon.}, abstract={Heat of combustion and calorific value of analyzed sludge oscillates in a very wide scope and the lowest value of indexes were achieved for dried municipal and industrial sludge, whilst higher for thickened municipal sludge and drained one. Sludge, the one after initial thermal processing (i.e. drying) can be used as renewable source of energy.}, abstract={Pearson's linear correlation analysis of sludge has show significant positive linear dependence between calorific value and organic dry matter content as well as total content of carbon and nitrogen for all analyzed kinds of sludge.}, type={artykuł}, title={Assessment of physical, chemical and energetic properties of sludge in industrial and municipal sewage treatment plant = Ocena właściwości fizycznych, chemicznych i energetycznych osadów pochodzących z oczyszczalni ścieków przemysłowych i komunalnych}, keywords={sewage sludge, properties of sludge, chemical composition of sludges, heat of combustion and calorific value of sludge, osady ściekowe, właściwości osadów, skład chemiczny osadów, ciepło spalania i wartość opałowa osadów}, }