PENGARUH JENIS PEREKAT DAN KECEPATAN PUTARAN GRANULATOR TERHADAP SIFAT FISIK BUTIRAN GRANUL UREA ( Slow Release Fertilezer )

AFRIDHA, NENSI SORAYA (2019) PENGARUH JENIS PEREKAT DAN KECEPATAN PUTARAN GRANULATOR TERHADAP SIFAT FISIK BUTIRAN GRANUL UREA ( Slow Release Fertilezer ). Bachelor thesis, UNIVERSITAS MUHAMMADIYAH PURWOKERTO.

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Abstract

The study aims to examine the relationship of the effect of the type of adhesive and the rotational speed of the granulator on the physical properties of urea granules (slow release fertilizer). In this study the results showed that the type of adhesive (tapioca, sticky rice, rice, sago, cornstarch) on the granulation process affected the bulk density value, the percentage of carved granules 2-5 mm, and durability to get the best value is in the type of tapioca adhesive. The best type of adhesive is tapioca and based on observations to the end to get the longest dispersion results. Whereas the percentage of tapioca DSA (water absorption) has the lowest percentage, it means that the absorbed level is small. In the variable rotation speed of the granulator (5, 10, 15, 20 and 25 RPM) the higher causes the value of bulk density, water absorption (DSA), the percentage of granules size 2-5 mm has increased. while the durability and faster dispersion time. So it can be concluded that the granulator putran velocity affects the physical properties of SRF urea granules. In SEM tests veriable adhesive types that have high amylopectin with high viscosity (ie tapioca 92%) can increase the uniform distribution of urea and small granule pores. In the type of tapioca adhesive there are a few pores with an average diameter of 2.57 μm, whereas in the type of adhesive maize (amylopectin 70%) has a pore diameter of 11.5 μm. At the granulator variable speed of 5 RPM the surface of the granule has a pore diameter of 4.6 μm. with the uneven distribution of urea, there are slightly large white particles on the granules.

Item Type: Thesis (Bachelor)
Uncontrolled Keywords: Granule fertilizer SRF, granule physical properties SRF, Type of adhesive, granulator rotation speed
Subjects: Q Science > QD Chemistry
Divisions: Fakultas Teknik > Teknik Kimia S1
Depositing User: Nur Hardiansyah
Date Deposited: 10 Mar 2022 01:31
Last Modified: 10 Mar 2022 01:31
URI: http://repository.ump.ac.id/id/eprint/10863

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