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Dioksyny w kompostach wytworzonych z komunalnych i przemysłowych osadów ściekowych

Gworek B., Zakrzewska M., Stępień W., Kijeńska M., Wrzosek J.

Przemysł Chemiczny

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2018

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T. 97, nr 4

604--608

PL

Dokonano oceny zawartości PCDD/F w kompostach wytworzonych z komunalnych i przemysłowych osadów ściekowych z uwzględnieniem ich pochodzenia i technologii produkcji na tle danych literaturowych dotyczących występowania dioksyn w osadach ściekowych.

EN

Municipal and sewage sludges and 13 composts produced from their mixts. were analyzed for polychlorinated dibenzo-dioxins and - furanes by gas chromatog. coupled with tandem mass spectrometry. The detd. concns. of the pollutants did not exceed the allowable concns. and the composts can be used as fertilizers in agriculture.

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Impact of sewage sludge and composts prepared from sewage sludge on the content and uptake of macronutrients by straw of miscanthus sacchariflorus

Iżewska A., Krzywy E., Balcer K.

Polish Journal of Chemical Technology

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2007

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Vol. 9, nr 3

56-59

EN

The pot experiment was set up under the conditions of the hall of vegetation in 2002. The municipal sewage sludge and composts produced with the GWDA method in 2001 based on municipal sewage sludge with the 30% addition of structuring materials, in conversion to the dry matter, were used in the experiment. The pot experiment was set up with the split-split-plot method in three repetitions. The objects of the first factor were the doses of sewage sludge and composts (1 dose = 13 g , 2 dose = 26 g, 3 dose = 39 g, 4 dose = 52 g of dry matter in relation to the soil weight in the pot), the objects of the second factor were the types of organic fertilization (sewage sludge, 0,5-year compost prepared from sewage sludge, 1,5-year compost prepared from sewage sludge), objects of the third factor were the variants with and without nitrogen and potassium fertilization in the rates of 0.27 g N and 0.26 g K per pot. The experiment was conducted in Kick-Brauckmann's pots of 9 dm3 capacity in which 8 kg of soil were placed. The test plant cultivated in the experiment was Miscanthus sachariflorus. Seedlings of Miscanthus were planted in the first year of the experiment. The obtained results show that the content of macronutrients: nitrogen, phosphorus, potassium in straw of Miscanthus sachariflorus was not dependent on the type of organic fertilizers used in the experiment. However, supplemental nitrogen-potassium fertilization significantly increases the content of potassium in the test plant in all three years of research and nitrogen in the second year. The conducted research shows that the uptake of macronutrients depended on the dry matter yield quantity and the content of a given element in the yield. Within three years the straw of Miscanthus sacchariflorus took up the most of potassium - 11.63 g from the pot and the least of magnesium 1.20 g from the pot. The amount of the absorption of nitrogen, phosphorus and magnesium by the biomass of Miscanthus sacchariflorus from the pot on the objects fertilized with organic fertilizers was the highest in the second year of the research, which was a result of mineralization of the applied fertilizers.

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Impact of manure and organic fertilizers on the quantity and content yield of heavy metals in spring rape

Krzywy E., Iżewska A.

Polish Journal of Chemical Technology

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2007

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Vol. 9, nr 3

60-63

EN

The pot experiment was set up with the split plot method in three repetitions in 2006. The objects of the first factor were the doses of manure and organic fertilizers to the soil in conversion to the brought in nitrogen (85 and 170 kg Nźha^-1). the objects of the second factor were the types of fertilizers: manure, sewage sludge and the composts prepared from sewage sludge. The soil used in an experiment was supplied from The Agricultural Experimental Station in Lipnik. The soil was taken from the arable layer, it has the granulometric composition of the light loamy sand. The content of available phosphorus, potassium and magnesium formed on medium level, the pH(KCl) of the soil amounted to 5.13. The soil was characterized by 0° contamination of trace elements, which means that it contained the natural content of cadmium, copper, nickel, lead and zinc. Spring rape var. l.icosmos was the test plant. The aim of the research was the assessment of the influence of manure, sewage sludge and compost prepared from sewage sludge on yield quantity of seeds and straw and the content of cadmium, nickel, lead and zinc in spring rape. The conducted research shows that fertilizers brought into the soil (manure, sewage sludge and compost prepared from sewage sludge) as well as two levels of fertilizing had a significant influence on the yield of the seeds and straw of spring rape. Manure, sewage sludge and compost prepared from sewage sludge played less significant influence on the decreasing or excessive increasing of heavy metals concentration in the seeds of spring rape. The double dose of fertilizers caused higher accumulation of heavy metals in the test plant. The straw of spring rape should be treated as a source of organic matter and the main nutrients for the soil. The highest concentration of copper, manganese, nickel and zinc in the straw of spring rape was noticed after the application of sewage sludge and of cadmium and lead after the application of compost prepared from sewage sludge.

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Kompost z osadów ściekowych:odpad czy nawóz?

Sobczyk R.

Forum Eksploatatora

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2003

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Nr 2 (11)

16-18