Analysis of phosphorus speciation in primary sludge in the annual cycle
Date
2017-03-21
Journal Title
Journal ISSN
Volume Title
Publisher
Lviv Politechnic Publishing House
Lviv Politechnic Publishing House
Lviv Politechnic Publishing House
Abstract
The objective of the research was to
investigate phosphorus speciation in sewage sludge in
order to determine the amount of the element that can be
assimilated by plants after the application of sludge for
nature-related purposes. Since the possibility of using
sludge for such purposes is of considerable importance,
this paper analyses the content of different phosphorus
speciation forms (including the bioavailable ones) in
primary sludge. The studies’ results indicate that the
maximum share of mobile forms (Ca-EDTA+Na-
EDTA) in primary sludge in the annual cycle amounts to
merely 46 %. This confirms the observation that in the
examined period the hardly-available, organic phosphorus
forms are dominant (fractions H2SO4 and NaOH).
Therefore, after the application of primary sludge for
nature-related purposes, only a small portion of
phosphorus included therein is assimilated by plants.
Description
Keywords
primary sludge, phosphorus speciation, application of primary sludge for nature-related purposes
Citation
Bezak-Mazur E. Analysis of phosphorus speciation in primary sludge in the annual cycle / Elżbieta Bezak-Mazur, Renata Stoińska, Bartosz Szeląg // Environmental Problems. — Lviv : Lviv Politechnic Publishing House, 2017. — Vol 2. — No 2. — P. 83–86.