Changes in the properties of pig manure slurry.

Zygmunt Kowalski; Agnieszka Makara; Kamil Fijorek

doi:10.18388/abp.2013_2070

Changes in the properties of pig manure slurry.

Zygmunt Kowalski Cracow University of Technology, Institute of Chemistry and Inorganic Technology, Kraków, Poland.;
Agnieszka Makara Cracow University of Technology, Institute of Chemistry and Inorganic Technology, Kraków, Poland.;
Kamil Fijorek Cracow University of Economics, Departament of Statistics, Kraków, Poland.;

DOI: https://doi.org/10.18388/abp.2013_2070

Abstract

The paper presents the results of analyses of samples of manure from a pig farm located near Piła, Poland performed between June 2011 and May 2012 using a single sampling system. The statistical analyses of the average content of chemical and biological oxide demands, nitrogen, phosphorus, potassium, calcium and dry mass in the slurry in various seasons allowed us to draw conclusions concerning the changes in the chemical composition of the manure in specific seasons and to determine the correlations between the chemical parameters. The average content of N, BOD, P, and dry mass content tended to decrease systematically from the spring until the winter. The highest correlation coefficient, which indicates significant interdependency among the variables tested, was consistently found for COD and BOD, whereas the smallest correlation coefficient was found consistently for K and Ca and once for Ca and N.

Issue

Vol. 60 No. 4 (2013)

Section

Articles

Acta Biochimica Polonica is an OpenAccess quarterly and publishes four issues a year. All contents are distributed under the Creative Commons Attribution-ShareAlike 4.0 International (CC BY 4.0) license. Everybody may use the content following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.