<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">This work presents the selected aspects of a technological concept for the production of organic and mineral fertilizers from communal sludge stabilized with volatile ash, by using two methods of granulation: coating and pressure. The presented concept is the effect of optimization, taking into account an interference of a number of factors exerted onto the fertilizing values and the mechanical strength of the final products. The fertilizers (contain ash from brown coal) obtained according to that method are characterized by a sufficient (according to law) content of organic matter (35,73% w/w), total nitrogen (1,70% w/w), phosphorus P2 O5 (3,62% w/w) and after the modification, also potassium K2O (8,43% w/w). The mechanical properties are better for the granulates, prepared by using pressure granulation (15,1 kG/cm2) and allow for their transportation, storage and application.</abstract>

This work presents the selected aspects of a technological concept for the production of organic and mineral fertilizers from communal sludge stabilized with volatile ash, by using two methods of granulation: coating and pressure. The presented concept is the effect of optimization, taking into account an interference of a number of factors exerted onto the fertilizing values and the mechanical strength of the final products. The fertilizers (contain ash from brown coal) obtained according to that method are characterized by a sufficient (according to law) content of organic matter (35,73% w/w), total nitrogen (1,70% w/w), phosphorus P2 O5 (3,62% w/w) and after the modification, also potassium K2O (8,43% w/w). The mechanical properties are better for the granulates, prepared by using pressure granulation (15,1 kG/cm2) and allow for their transportation, storage and application.

Granulated organic and mineral fertilizers: Technology and utility properties

Institute of Environmental Engineering, Polish Academy of Science, 41-819 Zabrze, ul. M. Skłodowskiej-Curie 34, Poland

Institute for Chemical Processing, Coal (IChPW), 41-803 Zabrze, ul. Zamkowa 1

University of Opole, Chair of Protection of Earth's Surface, 45-952 Opole, Oleska 22

Polish Journal of Chemical Technology

{"article-title":"Granulated organic and mineral fertilizers: Technology and utility properties"}

This work presents the selected aspects of a technological concept for the production of organic and mineral fertilizers from communal sludge stabilized with...

Granulated organic and mineral fertilizers: Technology and utility properties

Publié en ligne: 30 janv. 2008

Pages: 36 - 39

DOI: https://doi.org/10.2478/v10026-007-0085-9

Mots clés
organic and mineral fertilizers, sludge, volatile ashes, granulation

This content is open access.

Granulated organic and mineral fertilizers: Technology and utility properties

Publié en ligne: 30 janv. 2008

Pages: 36 - 39

DOI: https://doi.org/10.2478/v10026-007-0085-9

Mots clésorganic and mineral fertilizers, sludge, volatile ashes, granulation

This content is open access.

Mots clés
organic and mineral fertilizers, sludge, volatile ashes, granulation