Auswirkungen der Gamma‐Bestrahlung und Pasteurisierung von Klärschlamm auf seine mikrobiellen Eigenschaften und die Mineralisierung im Boden

Autor:	Beck Th., G. Schurmann, A. Süß
Rok vydání:	1977
Předmět:	biology Chemistry Soil Science Pasteurization Soil classification Mineralization (soil science) biology.organism_classification complex mixtures law.invention Catalase law Environmental chemistry biology.protein Alkaline phosphatase Amylase Bacteria
Zdroj:	Zeitschrift für Pflanzenernährung und Bodenkunde. 140:657-668
ISSN:	0044-3263
DOI:	10.1002/jpln.19771400607
Popis:	Effect of γ-irradiation and pasteurization of sewage sludge to the microbiological properties and the mineralization in soil Hygienic aspects of sewage sludge application in agricultural practice are of increasing importance. Because parasites are extremely sensitive to γ-irradiation a dose of 300 krad is equivalent to pasteurization. The total bacteria count of the sewage sludge is reduced by this dosage by 90 to 99%. Enzymic activity is reduced after radiation at a rate of about 39%. Especially amylase, catalase, and alkaline phosphatase are extremely sensitive to irradiation. Mineralization studies of sewage sludge with different pretreatments in different soil types indicated no significant differences.
Databáze:	OpenAIRE
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