K Kasmadi, Budi Nugroho, Atang Sutandi, Syaiful Anwar


The physical quality of NPK fertilizer is very important, good physical quality, as indicated by the low potential of caking and absorption-penetration of water so that NPK fertilizer can be stored for a longer time and easier in handling. In this study, the granulation test used NPK 15-15-15 + 5S formula with the percentage filter pressmud 0%, 60%, 70%, 80%. 90% and 100% in two types of K sources: MOP (KCl) and SOP (K2SO4). Granulation was carried out using the wet granulation method using pan granulator, 2 kg batch-1 capacity, rotation speed 23 rpm and 50o pan slope. The purpose of this study was to determine the effect of filter pressmud addition on the tendency of caking NPK 15-15-15 + 5S products during storage. The results showed that the addition of pressmud filler in the production of NPK fertilizer was obtained: the addition of filter pressmud as a filler in the production of 15-15-15 + 5S NPK fertilizers can reduce the potential of caking by 1.77% -44.31% depending on the formulation of raw materials used.


caking;compound fertilizer; filler; filter pressmud; granulation

Full Text:



Albadarin, A.B., Lewis, T.D. and Walker, G.M. 2016. Granulated polyhalite fertilizer caking propensity. Powder Technology 308: 193-199, doi: 10.1016/j.powtec.2016.12.004.

Capes, C.E. 1980. Particle Size Enlargement. Amsterdam: Elsevier Scientific Publishing Company.

Chai, X., Chen Le, Xue, B. and Liu, E. 2017. Granulation of ammonium chloride fertiliser and agglomeration mechanism. Powder Technology 319: 148-153, doi:10.1016/j.powtec.2017.06.045.

Gluba, T. and Obraniak, A. 2011. Nucleation and granule formation during disc granulation process. Physicochemical Problems of Mineral Processing 48(1): 113-120.

Gowariker, V., Krishnamurty, V.N., Gowariker, S., Dhanorkar, M. and Paranjape, K. 2009. The Fertilizer Encyclopedia. New Jersey: John Wiley & Sons. Inc. Publication.

Hignett, T.P. 1985. Fertilizer Manual. IFDC. Alabama: Springer Science+Business Media, B.V. Muscle Shoals. Pp 284-312.

Iinternational Fertilizer Development Center (IFDC). 1998. Fertilizer Manual. Amsterdam: Kluwer Academic Publishers. Pp 471-498.

Litster, J. and Ennis, B. 2004. The Science and Engineering of Granulation Process. Brisbane: Springer Science Business Media B.V. Originally published by Kluwer Academic Publisher.

Obraniak, A. and Gluba, T. 2012. A model of agglomerate formation during bed wetting in the process of disc granulation. Chemical and Process Engineering 33(1): 153-165, doi: 10.2478/v10176-012-0014-1.

Rutland, D., and Polo, J. 2005. Fertilizer dealer handbook products, storage, and handling. Muscle Shoals, Alabama. IFDC-An International Center for Soil Fertility and Agricultural Development. Pp 1-7.

Xue, B.C., Hao, Q., Liu, T. and Liu, E.B. 2013. Effect process parameter and agglomeration mechanisms on NPK compound fertiliser. Powder Technology 247 (2013:) 8-13, doi: 10.1016/j.powtec.2013.06.027.

Xue, B.C., Huang, H., Mao, M. and Liu, E. 2017. An investigation of the effect of ammonium sulfate addition on compound fertiliser granulation. Particuology 31: 54 – 58, doi: 10.1016/j.partic.2016.04.004.



  • There are currently no refbacks.

Copyright (c) 2020 K Kasmadi, Budi Nugroho, Atang Sutandi, Syaiful Anwar

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.