Garuda - Garba Rujukan Digital

Blending Batubara Dengan Limbah Biomassa Tongkol Jagung Untuk Mengurangi Ketergantungan Sumber Energi Tidak Terbarukan Syukrika Putri; Takdir Syarif; Andi Aladin
Journal of Chemical Process Engineering Vol 7, No 2 (2022)
Publisher : Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33536/jcpe.v7i2.807

Cadangan batubara sebagai sumber energi tidak terbarukan semakin menipis. Untuk mengurangi laju pemakaian bahan bakar batubara maka dilakukan penelitian blending batubara dengan sumber energi terbarukan berupa biomassa seperti tongkol jagung. Dalam penelitian ini diamati pengaruh rasio tongkol jagung terhadap batubara untuk mendapatkan kualitas campuran bahan bakar terbaik yang memenuhi syarat untuk diaplikasikan pada industri dan pembangkit listrik. Parameter kualitas campuran batubara dan tongkol jagung yang diamati adalah nilai kalor dan kadar sulfur. Bahan bakar batubara yang digunakan dalam penelitian ini memiliki nilai kalor 8403 cal/gram dan kadar sulfur 0.71%. Sedangkan tongkol jagung memiliki nilai kalor 3409.64 cal/gram dan kadar sulfur 0.14%. Dari penelitian ini diperoleh pencampuran terbaik dengan rasio tongkol jagung terhadap batubara sebesar 75% yang memberikan nilai kalor 4741.54 cal/gram dan kadar sulfur 0.26%. Kualitas pencampuran batubara dan tongkol jagung ini memenuhi syarat untuk diaplikasikan pada Pembangkit Listrik Tenaga Uap (PLTU). Pemanfaatan hasil pencampuran bahan bakar ini dapat mengurangi laju pemakaian batubara sebanyak 75%.

Blending Batubara Dengan Limbah Biomassa Tongkol Jagung Untuk Mengurangi Ketergantungan Sumber Energi Tidak Terbarukan Putri, Syukrika; Syarif, Takdir; Aladin, Andi
Journal of Chemical Process Engineering Vol. 7 No. 2 (2022): Journal of Chemical Process Engineering
Publisher : Fakultas Teknologi Industri - Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33536/jcpe.v7i2.795

Cadangan batubara sebagai sumber energi tidak terbarukan semakin menipis. Untuk mengurangi laju pemakaian bahan bakar batubara maka dilakukan penelitian blending batubara dengan sumber energi terbarukan berupa biomassa seperti tongkol jagung. Dalam penelitian ini diamati pengaruh rasio tongkol jagung terhadap batubara untuk mendapatkan kualitas campuran bahan bakar terbaik yang memenuhi syarat untuk diaplikasikan pada industri dan pembangkit listrik. Parameter kualitas campuran batubara dan tongkol jagung yang diamati adalah nilai kalor dan kadar sulfur. Bahan bakar batubara yang digunakan dalam penelitian ini memiliki nilai kalor 8403 cal/gram dan kadar sulfur 0.71%. Sedangkan tongkol jagung memiliki nilai kalor 3409.64 cal/gram dan kadar sulfur 0.14%. Dari penelitian ini diperoleh pencampuran terbaik dengan rasio tongkol jagung terhadap batubara sebesar 75% yang memberikan nilai kalor 4741.54 cal/gram dan kadar sulfur 0.26%. Kualitas pencampuran batubara dan tongkol jagung ini memenuhi syarat untuk diaplikasikan pada Pembangkit Listrik Tenaga Uap (PLTU). Pemanfaatan hasil pencampuran bahan bakar ini dapat mengurangi laju pemakaian batubara sebanyak 75%.

Karakterisasi Fe₂O₃ Hasil Sintesis Hijau Menggunakan Ekstrak Buah Dengen (Dillenia serrata): Characterization of Fe₂O₃ from Green Synthesis Using Dengen Fruit Extract (Dillenia serrata) Nurmalasari; Nurhalima; Suaedi; Bakri, Suriyanto; Putri, Syukrika; Prayitna, Yusri
Journal of Engineering Science and Technology Applications Vol. 2 No. 2 (2024): Journal of Engineering Science and Technology Applications
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jesta.v2i2.204

Fe₂O₃ has many functions, including as a pigment and as a semi-conductor material. The use of this material depends on its characteristics. In this study, the characterization of Fe₂O₃ nanoparticles produced from green synthesis was carried out. Dengen fruit extract was used as a chelating agent with iron sand raw material from the Pajallesang River, Palopo City. The synthesis was carried out using the sol-gel method at pH 4.7. The gel sample was calcined at temperatures of 600°C, 700°C, and 800°C, after which it was characterized using XRD and XRF. The average crystallite size of Fe₂O₃ particles in iron sand and after being synthesized at temperatures of 600°C, 700°C, and 800°C were respectively 40.09 nm, 36.67 nm, 31.46 nm, and 69.04 nm. The increase in calcination temperature affects the Fe₂O₃ content, where the higher the temperature used, the lower the Fe₂O₃ content obtained. The Fe₂O₃ content in iron sand and after synthesis at temperatures of 600°C, 700°C, and 800°C were respectively 70.4%, 91.04%, 90.01%, and 88.82%

Studi Pemisahan Bijih Mangan dari Paludda Daerah Barru Menggunakan Shaking Table dengan Variasi Ukuran Butir: Separation Study of Manganese Ore from Palludda Barru Region Using Shaking Table with Variation of Grain Size Fraction Bakri, Suriyanto; Ratmi Nurhawaisyah, Sitti; Nurmalasari; Iksan, Muh.; Prayitna, Yusri; Putri, Syukrika
Journal of Engineering Science and Technology Applications Vol. 3 No. 1 (2025): Journal of Engineering Science and Technology Applications
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jesta.v3i1.217

Manganese is one of the mineral products of mining, especially those found in Indonesia, such as in the Paludda area of Barru Regency, South Sulawesi. Manganese ore is known as raw material for steel industry, battery industry and chemical industry. This research was conducted at the Mining Engineering Study Program's Materials Processing Laboratory. The purpose of this study was to determine the percentage increase in manganese ore content after the concentration process, determining the recovery of manganese ore against variations in grain size using a shaking table. The analysis used in this research includes shaking table equipment, XRF analysis and also XRD analysis, from this processing will be obtained Mn content. The results of this study show shaking table separation using operating variables with an initial sample weight of 500 grams with levels in the initial sample of MnO of 33.58%, in concentrate -65 of 26.60%, concentrate -100 of 25.93%, concentrate -150 of 25.46%, concentrate -200 of 26.93%, in tailings -65 of 24.17%, tailings -100 of 23.79%, tailings -150 of 22.79% and tailings -200 of 22.60. Therefore, the results of the study can be concluded that the shaking table operation obtained the optimal concentrate and tailings in the -150 MnO concentrate with a recovery of 23.65%, then the -100 MnO tailings with a recovery of 38.68%

Sosialisasi Pengolahan Limbah Plastik Menjadi Bahan Bakar Minyak Bagi Siswa-Siswi UPT SMA Negeri 4 Parepare Nurmalasari, Nurmalasari; Putri, Syukrika; Bakri, Suriyanto; Prayitna, Yusri; Nisardi, Muhammad Rifki; Safitri, Dian; Rahmadani, Suci
Prima Abdika: Jurnal Pengabdian Masyarakat Vol. 5 No. 2 (2025): Volume 5 Nomor 2 Tahun 2025 (Juni)
Publisher : Program Studi Pendidikan Guru Sekolah Dasar Universitas Flores Ende

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/abdika.v5i2.5763

The increasing problem of plastic waste poses a serious environmental challenge and requires environmentally friendly and educational solutions. This community service activity aims to introduce the design and implementation of a plastic waste processing device that converts plastic into fuel oil (BBM) using the pyrolysis method, targeting students at UPT SMA Negeri 4 Parepare. The program was implemented through counseling sessions, interactive discussions, and demonstrations of the pyrolysis device, adjusted to the students’ level of understanding. Evaluation was conducted using pre- and post-tests, participant satisfaction surveys, and direct observation. The results showed that 84% of students demonstrated improved understanding of the material, and participation and satisfaction rates exceeded 90%. These findings indicate that the activity not only succeeded in raising students’ environmental awareness but also provided them with practical knowledge about simple technology for plastic waste management.

Catalytic Pyrolysis of Polypropylene Using Nickel Supported Sago Waste Activated Carbon for Liquid Fuel Syukrika Putri; Nurmalasari Nurmalasari; Suci Ramadani; Dian Safitri
Nucleus Journal Vol. 5 No. 1 (2026): May
Publisher : Universitas Darul Ulum

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32492/nucleus.v5i1.5102

The catalytic pyrolysis of polypropylene (PP) has attracted considerable attention as a promising approach for converting plastic waste into valuable fuels; however, the development of low-cost and sustainable catalysts remains a major challenge. In this study, the catalytic pyrolysis of polypropylene was conducted to investigate the effect of nickel supported on activated carbon (Ni/AC) derived from sago waste on liquid yield and hydrocarbon selectivity. Pyrolysis experiments were performed at 500 °C using catalyst loadings of 2.5 g, 5 g, and 7.5 g, alongside a non-catalytic run for comparison. The introduction of Ni/AC significantly enhanced liquid production compared to thermal pyrolysis, with the optimum yield achieved at moderate catalyst loading. Gas Chromatography–Mass Spectrometry (GC–MS) analysis confirmed that the liquid fraction was mainly composed of hydrocarbons in the gasoline (C₅–C₁₂) and diesel (C₁₃–C₂₀) ranges. Higher catalyst loading promoted secondary cracking, shifting selectivity toward gaseous products. These findings demonstrate that Ni/AC catalysts from sago waste provide an effective and sustainable approach for converting plastic waste into fuel-like hydrocarbons, underscoring their potential role in plastic waste valorization and sustainable energy development.

Sosialisasi Teknologi Tepat Guna: Stainless steel Sebagai Pengganti Plastik untuk Wadah Makanan dan Minuman Bagi UPT SMAS Al Iman Uluale Putri Mutia Monica; Suriyanto Bakri; Nurmalasari Nurmalasari; Muhammad Rifki Nisardi; Syukrika Putri; Yusri Prayitna; Hartina Husain; Kusnaeni Kusnaeni; Muhammad Zhaky Putra; Dian Safitri
Abdimas Toddopuli: Jurnal Pengabdian Pada Masyarakat Vol. 7 No. 2 (2026): Volume 7, No 2, Juni 2026
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/00rq2x08

Penggunaan wadah makanan berbahan plastik masih dominan di kalangan siswa SMA karena sifatnya yang praktis dan ekonomis. Namun, penggunaan berulang dan paparan panas berpotensi menyebabkan pelepasan mikroplastik yang berdampak pada kesehatan. Di sisi lain, stainless steel merupakan material alternatif yang memiliki ketahanan korosi tinggi, sifat higienis, serta umur pakai yang lebih panjang. Permasalahan utama yang dihadapi mitra adalah rendahnya pemahaman siswa mengenai risiko penggunaan plastik serta keunggulan stainless steel sebagai material yang lebih aman. Kegiatan pengabdian ini bertujuan meningkatkan literasi sains siswa melalui sosialisasi teknologi tepat guna. Metode yang digunakan meliputi pemaparan materi interaktif, diskusi, serta evaluasi melalui pre-test dan post-test. Hasil kegiatan menunjukkan adanya peningkatan pemahaman siswa terkait bahaya mikroplastik dan pentingnya pemilihan material yang tepat. Kegiatan ini berkontribusi dalam membentuk kesadaran siswa terhadap penggunaan material yang aman, higienis, dan berkelanjutan dalam kehidupan sehari-hari.

Title

Found 7 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 7 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 7 Documents
Search