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All Journal Jurnal Kimia (Journal of Chemistry) Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Wikrama Parahita : Jurnal Pengabdian Masyarakat Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia Jurnal Inovasi Teknik Kimia Community Empowerment Mitra Akademia: Jurnal Pengabdian Masyarakat Journal Of Research and Education Chemistry (JREC) JIMSI
Noorma Kurnyawaty
Jurusan Teknik Kimia, Politeknik Negeri Samarinda, Samarinda, Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Public Health Social Sciences

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Journal : JIMSI

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PEMBUATAN PUPUK ORGANIK CAIR DARI URINE SAPI DENGAN VARIASI JENIS BIOAKTIVATOR Firda Anisa; Fitriyana Fitriyana; Noorma Kurnyawaty
JURNAL TEKNIK KIMIA VOKASIONAL (JIMSI) Vol 1, No 2 (2021): JURNAL TEKNIK KIMIA VOKASIONAL (JIMSI)
Publisher : Politeknik Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46964/jimsi.v1i2.870

Abstract

Cow urine is one of the waste materials or the results of the excretion system of cow metabolism that greatly interferes with the community around the farm if not processed properly. Cow urine in general contains macro nutrients, including: 1.4 - 2.2% Nitrogen, 0.6 - 0.7% Phosphorus, 1.6 - 2.1% Potassium, and C-organic, so that cow urine can be used as a liquid organic fertilizer in order to become a more useful agricultural product. This study aims to find out the best bioactivator for the manufacture of Liquid Organic Fertilizer (POC) from cow urine. The manufacture of liquid organic fertilizer from cow urine can be done by fermentation method. The fermentation process was carried out for 14 days in a closed state with variations in the types of bioactivators used namely EM4, Promi, Orgadec, Stardec and Petrofast. Bioactivators were used to speed up the process of decomposing and remodeling organic matter from cow urine. From the results of the analysis conducted, the best bioactivator was stardec bioactivators with N content of 0.07%, P of 0.016%, K of 0.478%, C-organic of 1.27% and pH of 4.90.
PENURUNAN KADAR LOGAM BESI MENGGUNAKAN BUBUK KALSIUM CANGKANG KERANG HIJAU Noorma Kurnyawaty; Fitriyana Fitriyana; Muhammad Taufik; Ayu Erika Putri
JURNAL TEKNIK KIMIA VOKASIONAL (JIMSI) Vol 1, No 1 (2021): JURNAL TEKNIK KIMIA VOKASIONAL (JIMSI)
Publisher : Politeknik Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (902.001 KB) | DOI: 10.46964/jimsi.v1i1.656

Abstract

Green mussels (Perna viridis) are a type of processed water from a fairly high percentage of production. The high consumption rate is followed by the high amount of residual processing waste produced, namely in the form of shells. Unfortunately, mussel shell is a waste that is not used optimally. In the shells, there are a lot of mineral content, which when processed many benefits will be obtained. Clamshells have been studied to contain a fairly high source of the mineral calcium. This study is preliminary research focused on determining the ability of green mussel shell calcium powder to reduce iron levels in standard solutions with concentrations of 20, 40, 60, 80, and 100 mg / L. The results obtained from this study are the calcium content of green clamshells in the form of calcium carbonate (CaCO3) with calcium reaching 34.93% Wt and can be used properly to reduce iron metal levels.
PEMANFAATAN EKSTRAK KULIT BUAH NAGA MERAH BERDASARKAN PENGARUH UKURAN PARTIKEL SEBAGAI INDIKATOR ASAM-BASAPADA PROSES TITRASI Ade Era Febriani; Noorma Kurnyawaty; Firman Firman
JURNAL TEKNIK KIMIA VOKASIONAL (JIMSI) Vol 2, No 2 (2022): JURNAL TEKNIK KIMIA VOKASIONAL (JIMSI)
Publisher : Politeknik Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46964/jimsi.v2i2.1694

Abstract

Dragon fruit skin contains flavonoid compounds, one of which is anthocyanin. This anthocyanin can change color as the pH value changes so it can be applied as an acid-base titration indicator. The purpose of this research is to utilize red dragon fruit skin extract (Hylocereus polyrhizus) as an acid-base indicator in the titration process based on the influence of particle size (3.00 × 3.00 × 1.00) cm; (-14+18); (-18+20); (-20+70); (-70+100); (-100+120) mesh. The extract was obtained by maceration extraction for 24 hours with 96% ethanol solvent: 10% citric acid. The results of determining the color change trajectory were obtained when the acidic condition was light brown and when the alkaline condition was bright yellow. The highest result was obtained at particle size of -14 + 18 mesh with a rendement of 30.42%. The extract was tested as an acid-base titration indicator with a pH range of 8.3–10.0 for the pp indicator as a comparison, while methyl orange was used as a comparison with a pH of 3.1 – 4.4. So that this red dragon fruit peel extract can be used as an indicator in acid-base titration. Keywords: Acid-base titration, particle size, red dragon fruit peel
Co-Authors Ade Era Febriani Aris Anwar Ayu Erika Putri Bastomy, Imam F. Kusumattaqiin Fataa Kusumattaqiin Firda Anisa Firman Firman Fitriyana Fitriyana Fitriyana Fitriyana Fitriyana Fitriyana, Fitriyana H. Suwito Ibnu Eka Rahayu Ibnu Eka Rahayu Khairun Nisa, Khairun Nisa Khotimah, Fitriani Khusnul Miranda Nur Wahidah Muhammad Taufik Natasya Anisah Roslianti Nizaora, Ditha Nurul Aulia Putri Nur Awalia Putri Patma Sari Putri Syafira Khairani Ramli Ramli Rinda, Rizky Sulvika Puspa Salsabila, Andi Putri Syamsul Arifin Tauhid Hira Wijayanti, Anik Zainal Arifin