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PEMANFAATAN TANDAN KOSONG KELAPA SAWIT (Elaeis) DAN SERBUK KAYU JATI (Tectona Grandis) DALAM PEMBUATAN HURUF TIMBUL KOMPOSIT BERUPA PAPAN PARTIKEL Anerasari Meidinariasty; Fadarina; Muhammad Hadiid Fadhlillah
KINETIKA Vol. 12 No. 2 (2021): KINETIKA 01072021
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Composite letter sign can be made from particle board. This study aims to produce composite letters sign in the form of particle board with the raw materials of Empty Bunch of Oil Palm, Teak Sawdust and Low Density Polyethylene (LDPE) recycled plastics using the hot press method. This study used variations in the concentration of NaOH in the alkalization process. The concentration variations used were 0%, 1%, 2%, 3%, 4% and 5%. The particle board was analyzed based on SNI 03-2105-2006 including moisture content, water absorption, density, thickness expansion, modulus of rapture and modulus of elasticity. The results of the analysis showed that in the test of water absorption, density and thickness expansion did not significantly influence the variation in NaOH concentration. However, in the test of water content, modulus of rapture and modulus of elasticity have an effect, this is indicated by the increasing concentration of NaOH, the more the quality of the particle board increases. The particle board used NaOH 5% concentration variations became the most optimum with water content data of 2.85%, modulus of rapture of 194.65 kgf/cm2 and modulus of elasticity of 7007.90 kgf/cm2
Pembuatan Gas Metana Dari Gas Karbon Dioksida (CO2) Menggunakan Katalis Ni/Al2O3 Dengan Promotor Logam Fe Tiara Manda Putri; Robert Junaidi; Anerasari Meidinariasty
Jurnal Serambi Engineering Vol 8, No 4 (2023): Oktober 2023
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v8i4.6782

Abstract

Carbon dioxide (CO2) is one of the most critical greenhouse effect causes. One method that can reduce the problem of global warming is by converting CO2 and utilizing it into a CO2 hydrogenation reaction into methane. This research aims to obtain methane gas from CO2 gas using a Fixed Bed Reactor for the CO2 methanation process. This research uses Ni/Al2O3 catalyst as support and Fe metal as a promoter with in situ method by varying the amount of Fe metal promoter up to 1gr - 5gr and time variation of 30 minutes, 45 minutes and 60 minutes. The highest methane gas yield was obtained in sample 15 with more Fe metal promoter 5 gr (variation 1-5 gr) for 60 minutes (variation 30, 45, and 60 minutes), which amounted to 12.54%. The amount of Fe metal promoter and the length of time used is directly proportional to the methane gas (CH4) produced. This is because the addition of Fe as a promoter can increase catalyst activity and catalyst stability, so that the catalyst can work well in converting CO2 into methane thermal gas.Keywords: Carbon Dioxide, CO2 Methanation, Catalyst Ni/Al2O3, Promoter Fe, Methane (CH4).
Pembuatan Grease Dari Palm Fatty Acid Distillte (PFAD) dengan Variasi Komposis Base Oil, Thickening Agent dan Asam Asetat Sebagai Zat Aditif Ryu Indah Pratiwi; Robert Junaidi; Anerasari Meidinariasty
Jurnal Serambi Engineering Vol 8, No 4 (2023): Oktober 2023
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v8i4.6767

Abstract

Substitusi minyak bumi dengan nabati sebagai bahan pelumas dilakukan untuk menghasilkan minyak pelumas yang ramah lingkungan. Palm Fatty Acid Distillate (PFAD) menjadi salah satu produk turunan minyak kelapa sawit yang dapat dimanfaatkan sebagai bahan pembuatan grease. Grease adalah bahan semi padatan campuran antara minyak base oil dengan bahan pengentalnya (Thickening Agent) yang berfungsi mengurangi gesekan dan keausan antara dua bidang yang saling bergesekan. penelitian ini bertujuan untuk mendapatkan karakteristik grease menurut SNI dan mendapatkan tingkat NLGI terbaik. Penelitian ini dilakukan dengan komposisi antara base oil dan thickening agent dan zat aditif. Grease terbaik yang diperoleh termasuk dalam spesifikasi grease dan parameter kinerja untuk tingkat kualitas NLGI grade A dengan formulasi base oil : thickening agent 80:20 dengan penambahan zat aditif 3,5 ml, densitas 0,9057 gr/ml dan dropping point 98°C yang telah sesuai dengan SNI dengan penetrasi 241 mm yang mengindikasikan grease ke dalam kelas NLGI 3 
Pemanfaatan Abu Tongkol Jagung dan Abu Tempurung Kelapa dalam Pembuatan Pupuk Kalium Silika dengan Metode Sol-Gel Panggih Syambudi; Anerasari Meidinariasty; Yulianto Wasiran
Jurnal Serambi Engineering Vol. 9 No. 4 (2024): Oktober 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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South Sumatra is a province with high agricultural productivity. One of the largest agricultural products is corn and coconut, which is quoted from the website of the Lampung Province Food Security, Food Crops and Horticulture Office in 2021, which states that South Sumatra Province is one of the 10 largest corn producing provinces in Indonesia. With this in mind, the researcher conducted a study using the silica content of corn cobs and coconut husk waste as raw material for the production of potassium silica fertilizer using the sol-gel method. The potassium silicate fertiliser was produced by reacting KOH with corncob ash and coconut husk ash, which were varied. This is because the independent variables used are the concentration of KOH (4M, 6M) and the composition ratio of corn cob ash and coconut shell ash (10:40, 20:30, 25:25, 30:20, 40:10). The final result gave the best sample with more coconut shell ash composition than corn cob ash and higher KOH concentration. The sample formed 12.7 grams of final product with potassium content of 8821 mg/L and water content of less than 1%. As for the silica content in 4:1 coconut shell ash, there is approximately 73.2% silica.
Pengaruh Waktu dan Konsentrasi Enzim A-Amylase dan Glukoamilase pada Hidrolisis Biji Cempedak sebagai Bahan Baku Bioetanol RA Ghina Sayyidah Achva; Jaksen M. Amin; Anerasari Meidinariasty
Jurnal Serambi Engineering Vol. 9 No. 4 (2024): Oktober 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Bioethanol is a renewable energy source with great potential for development in Indonesia. Bioethanol is produced from the fermentation of sugar, starch or lignocellulosic biomass. In addition, cempedak seeds also contain sugars such as glucose, fructose and sucrose, which provide fast energy. The aim of this study is to identify the optimal composition by varying the hydrolysis time and adding alpha-amylase and glucoamylase enzymes. In the pre-treatment process, Cempedak seeds are processed and then the hydrolysis process is continued with variations in the addition of α-amylase and glucoamylase enzymes. (0.5%:1.5%:2.5%) (v/v) and then analysed for sugar content. From the results of the analysis, the highest % Brix was 16% at a hydrolysis time of 70 minutes with an enzyme concentration of 2.5%. The lowest water content of 98.93% was obtained at a hydrolysis time of 70 minutes and an enzyme concentration of 2.5%. In addition, the best sugar content results were used as raw material for bioethanol production and the ethanol content was checked. The fermentation process was carried out for 6 days and the ethanol content obtained was 64.95%, based on analysis by GC-MS.
Pemanfaatan Limbah Kulit Nanas Menjadi Bioetanol dengan Variasi Konsentrasi Ragi dan Lama Fermentasi Febri Liani Br Simanjuntak; Muhammad Yerizam; Anerasari Meidinariasty
Jurnal Serambi Engineering Vol. 9 No. 4 (2024): Oktober 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Pineapple peel waste can pollute the environment if not properly managed. On the other hand, pineapple peel waste can be used as a raw material for the production of bioethanol. The aim of this study was to evaluate the effect of variations in yeast concentration and the duration of the fermentation process on the bioethanol content of pineapple peel waste. In the fermentation process with variations in yeast concentration of 1.5%, 2% and 4%, the type of yeast used is Saccharomyces cerevisiae, the addition of nutrients in the form of NPK and urea by 0.5% each, as well as variations in the length of fermentation for 4 days, 5 days, 6 days, 7 days and 8 days. This study showed that the bioethanol content obtained was significantly influenced by yeast concentration and fermentation time. The sample with the highest ethanol content was produced with the addition of 4% yeast and fermentation for 5 days, the bioethanol content produced was 59% based on calculations using the standard ethanol curve equation and 57.23% based on analysis using GC-MS.
Pemberdayaan Kelompok Wanita Tani Prabumulih melalui Workshop Studi Kelayakan Bisnis: Pengabdian Marieska Lupikawaty; Neneng Miskiyah; Martha Aznury; Anerasari Meidinariasty
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 4 No. 1 (2025): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 4 Nomor 1 (Juli 2025 -
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v4i1.2277

Abstract

This community service program empowered the Kemuning Women Farmers Group (KWT) in Prabumulih through a Business Feasibility Study Workshop to address managerial challenges and enhance business sustainability. A participatory approach was applied to build technical capacity in five areas: (1) basic financial management, (2) digital marketing strategies using WhatsApp, (3) optimizing limited land production through recycled hydroponics and tiered polybag cultivation, (4) human resource management based on skill mapping, and (5) structured risk mitigation. Collaboration among PT Pertamina EP Prabumulih Field, Sriwijaya State Polytechnic, and the local government was key to success. Outputs included operational documents and behavioral changes in business management. Evaluation showed improved KWT capacity in financial feasibility, production efficiency, and risk readiness, transforming the business model from subsistence to sustainable women’s agripreneurship.
Efektivitas Komposit Silika-Kitosan Berbasis Abu Ampas Tebu Sebagai Adsorben Ion Fe Pada Limbah Cair Printed Circuit Board Magdalena Fransiska; Anerasari Meidinariasty; Erika Dwi Oktaviani
Jurnal Serambi Engineering Vol. 11 No. 3 (2026): Juli 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Limbah cair Printed Circuit Board (PCB) mengandung ion logam berat Fe yang berpotensi mencemari lingkungan sehingga memerlukan metode pengolahan yang efektif. Penelitian ini bertujuan mengidentifikasi gugus fungsi dan morfologi komposit silika–kitosan berbasis abu ampas tebu, menganalisis pengaruh variasi massa adsorben dan waktu kontak terhadap efisiensi serta kapasitas adsorpsi ion Fe, serta menentukan model isoterm adsorpsi yang paling sesuai. Silika hasil sintesis dimodifikasi dengan kitosan untuk meningkatkan jumlah situs aktif adsorben. Karakterisasi FTIR menunjukkan keberadaan gugus –OH (3384,4 cm⁻¹), –NH₂ (1640 cm⁻¹), serta Si–O–Si dan Si–O (1051,1; 790,2; dan 708,2 cm⁻¹) yang mengonfirmasi terbentuknya komposit silika–kitosan. Analisis SEM menunjukkan permukaan menjadi lebih kasar dan granular setelah modifikasi. Pengujian adsorpsi dilakukan menggunakan variasi massa adsorben 0,1; 0,2; dan 0,3 g serta waktu kontak 40–120 menit dengan analisis AAS. Hasil menunjukkan kapasitas adsorpsi menurun seiring peningkatan massa adsorben. Kapasitas adsorpsi tertinggi sebesar 16,2 mg/g diperoleh pada massa 0,1 g selama 120 menit, sedangkan efisiensi tertinggi sebesar 82,5% diperoleh pada massa 0,2 g selama 60 menit. Model Langmuir memberikan nilai R² lebih tinggi (0,9924–0,9995), menunjukkan adsorpsi berlangsung secara monolayer pada permukaan homogen. Komposit silika–kitosan berpotensi sebagai adsorben ramah lingkungan untuk pengolahan limbah cair PCB.
Adsorpsi Ion Besi (Fe) pada Air Formasi Menggunakan Komposit Silika - Kitosan dari Abu Ampas Tebu (Saccharum officinarum L.) Viona Azahara; Anerasari Meidinariasty; Mustain Zamhari
Jurnal Serambi Engineering Vol. 11 No. 3 (2026): Juli 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Air formasi yang dihasilkan industri minyak dan gas membawa ion besi (Fe) terlarut yang mengancam badan air penerima apabila dibuang tanpa pengolahan. Penelitian ini menyiapkan komposit silika–kitosan berbahan abu ampas tebu (Saccharum officinarum L.) dan menguji kinerjanya sebagai adsorben ion Fe pada air formasi. Ampas tebu dikalsinasi pada 700 °C, abunya diekstraksi dengan NaOH lalu diendapkan dengan HCl, dan silika yang terbentuk digabungkan bersama kitosan pada nisbah 2:1. Komposit dikarakterisasi melalui FTIR dan SEM. Adsorpsi sistem batch dijalankan pada massa adsorben 0,1; 0,2; dan 0,3 g dengan rentang waktu kontak 40–120 menit, pada konsentrasi awal Fe 2,262 mg/L yang diukur menggunakan AAS. FTIR memastikan hadirnya gugus siloksan, silanol, dan amina, sementara SEM memperlihatkan permukaan yang lebih kasar dan seragam setelah modifikasi. Efisiensi penyisihan naik seiring bertambahnya massa adsorben, sedangkan kapasitas adsorpsi justru turun. Kondisi terbaik, yaitu 0,2 g selama 40 menit, mencapai penyisihan 79,71% dengan kapasitas 0,451 mg/g. Data kesetimbangan lebih mendekati pola Langmuir dibandingkan pola Freundlich.
Co-Authors Erika Dwi Oktaviani Fadarina Febri Liani Br Simanjuntak Jaksen M. Amin Magdalena Fransiska Marieska Lupikawaty Martha Aznury Miskiyah, Neneng Muhammad Hadiid Fadhlillah Muhammad Yerizam Mustain Zamhari Panggih Syambudi RA Ghina Sayyidah Achva Robert Junaidi Ryu Indah Pratiwi Tiara Manda Putri Viona Azahara Wasiran, Yulianto