Comparison of phosphorus fractions and alkaline phosphatase activity in sludge,soils, and sediments

Purpose  

The land application or disposal of sewage sludge generally leads to phosphorus (P) loss in aquatic environments and often results in eutrophication. The nature of P fractions plays a key role in the transport of P within the environment, and alkaline phosphatase is important for the transformation of the P fractions. The objective of this study was to assess the P fractions and alkaline phosphatase activity in sewage sludge, soils, and sediments, in order to effectively evaluate their P bioavailability and mobility.