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All Journal Teknotan: Jurnal Industri Teknologi Pertanian SEMIRATA 2015 Al-Kimia Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Variabel KANGMAS: Karya Ilmiah Pengabdian Masyarakat Buletin Poltanesa International Journal of Multi Discipline Science (IJ-MDS) Jurnal Abdi Masyarakat Indonesia
Ismail Astar
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Mathematics Physics Public Health Social Sciences Other

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Journal : Al-Kimia

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Enkapsulasi Urea Menggunakan Biokomposit Zeolit Alam-Alginat-Pati Sagu sebagai Model Pupuk Lepas Lambat (Slow Release Fertilizer) Ida Ayu Suci; Ismail Astar
Al-Kimia Vol 10 No 1 (2022): JUNI
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v10i1.23739

Abstract

The urea fertilizer was encapsulation with the compositions of natural zeolite-alginate-sago starch biocomposite for developing of slowed-release properties. The characteristics of biocomposites such as FTIR, SEM, and nitrogen release tests were evaluated. Fourier transform infrared spectroscopy showed the presence of natural zeolite-alginate-sago starch biocomposite. The SEM images showed the surface morphology of urea has been coated by natural zeolite-alginate-sago starch biocomposite. Nitrogen release tests on natural zeolite-alginate-sago starch biocomposites with concentrations of 20% was the composition with the best results in holding urea encapsulated. This study indicates that natural zeolite-alginate-sago starch biocomposites are a alternative candidate for the development of the efficient slowed-release formulation of urea.
Enkapsulasi Urea Pada Lumpur PDAM-Alginat sebagai Pupuk Lepas Lambat Ismail Astar; Ida Ayu Suci
Al-Kimia Vol 10 No 1 (2022): JUNI
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v10i1.23740

Abstract

Modification of sludge solid waste regional water company (PDAM) Pontianak with alginate for the application of slow-release urea fertilizer. Characterization of materials was performed with Fourier-Transform Infra-Red (FTIR) spectroscopy and scanning electron microscopy (SEM). Analysis of the FTIR spectrum obtained showed that the characteristics of the absorption band at wavelengths of 3639.89 cm-1 and 3690.9 cm-1 are characteristic of the vibration of NH2 stretching asymmetric and symmetric derived from the presence of urea. Nitrogen release tests on mud PDAM-alginate composites with concentrations of 10%, 20%, 30%, 40% and 50% for 72 consecutive hours of 12,80%, 19,33%, 4,00%, 8,39% and 6,20%. This shows that urea encapsulated mud PDAM-alginate at a concentration of 30% is the composition with the best results in holding urea encapsulated.
Co-Authors Agnes Tutik Purwani Irianti Agus Suyanto Agus Suyanto Agusalim Masulili Agusalim Masulili Aripin Ponorogo Donna Youlla Dwi Nurteto Ekawati Hamdani Hamdani Ida Ayu Suci Meta Amalia Mukarlina, Rosalina Yuliana Ayen, Rahmawati, Oktarianty, Sherly Setiawan Setiawan Setiawan Setiawan Setiawan Setiawan Setiawan Sherly Oktarianti Sherly Oktarianty