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All Journal Jurnal Sains Materi Indonesia Jurnal Neutrino : jurnal fisika dan aplikasinya Jurnal Sumberdaya Alam dan Lingkungan Konversi Jurnal Teknik JURNAL PENDIDIKAN TAMBUSAI Jurnal Inovator Jurnal Daur Lingkungan ASEAN Journal of Chemical Engineering Kinetika Yumary: Jurnal Pengabdian kepada Masyarakat Jurnal Energi Baru dan Terbarukan AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Chemical Engineering Journal Storage (CEJS) Innovative: Journal Of Social Science Research Serambi Engineering Jurnal Pengabdian Kepada Masyarakat
Robert Junaidi
Politeknik Negeri Sriwijaya
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Journal : Innovative: Journal Of Social Science Research

 1 
Pembuatan Nanosilikon dari Abu Cangkang Kelapa Sawit Sebagai Katalis untuk Proses Hidrogenasi Air Wahyudi, Riki; Junaidi, Robert; Dewi, Erwana
Innovative: Journal Of Social Science Research Vol. 3 No. 5 (2023): Innovative: Journal of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

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Abstract

Hidrogen memberikan kontribusi penting dalam menyediakan energi untuk masa depan. Hidrogen adalah pasokan bahan baku yang melimpah, memiliki tingkat energi H2 286 kJ / mol, dan juga bermanfaat bagi lingkungan. Dengan komposisi SiO2 60%, abu cangkang sawit diketahui mengandung sejumlah besar silika. Penciptaan nanosilikon adalah salah satu kegunaan potensialnya. Penelitian ini bertujuan untuk mensintesis nanosilikon, memurnikannya menggunakan berbagai konsentrasi zat pereduksi, kemudian menggunakan nanosilikon murni untuk menghasilkan hidrogen menggunakan berbagai konsentrasi NaOH. Variasi dalam rasio silika-aluminium pada 1: 0,25, 1: 0,5, 1: 0,8, dan 1: 1 diperlukan untuk isolasi nanosilikon. Konsentrasi NaOH dalam proses produksi hidrogen juga disesuaikan menjadi 2 M, 2,5 M, 3 M, dan 3,5 M. Metodologi yang digunakan dalam penelitian ini meliputi metode presipitasi untuk ekstraksi silika, metode metalotermal untuk isolasi nanosilikon, pemurnian HCl nanosilikon, dan hidrogenasi NaOH. Aluminium dan silika direduksi dalam tungku selama tiga jam pada suhu 850°C untuk menghasilkan nanosilikon. Dengan intensitas 5517 cps dan hasil 93%, rasio silika terhadap aluminium 1: 1 menghasilkan hasil terbaik dalam sintesis nanosilikon. Dengan bantuan nanosilikon yang diperoleh, hidrogen dapat diproduksi dengan kandungan gas hidrogen 421 ppm pada rasio nanoSi: NaOH 3,5 M. Mengingat sifat hidrogen yang menguntungkan secara ekologis dan potensi untuk menggunakan bahan yang tersedia seperti abu cangkang sawit untuk pembuatan nanosilikon, penelitian ini dapat memiliki konsekuensi untuk penyediaan energi di masa depan.
Pemanfaatan Zeolite Alam Sebagai Katalis Untuk Sintesis Biodiesel Darmawan, Azzahrah Putri; Zamhari, Mustain; Junaidi, Robert
Innovative: Journal Of Social Science Research Vol. 3 No. 5 (2023): Innovative: Journal of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

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Abstract

Biodiesel adalah sumber bahan bakar alternatif yang dapat dihasilkan dari minyak jelantah melalui proses transesterifikasi merupakan salah satu potensi untuk digunakan sebagai bahan dasar produksi biodiesel. Penelitian ini bertujuan untuk mengetahui pengaruh variasi suhu dan waktu katalis zeolite terhadap biodiesel yang dihasilkan. Sintesis biodiesel diawali dengan pembuatan katalis Zeolit melalui proses kalsinasi Zeolit pada suhu 800 oC, 900 oC, 950 oC kemudian dilakukan perendaman dengan larutan KOH 1 : 1 dalam 100 ml pelarut air. Kemudian dilanjutkan proses pengeringan selama ± 1 jam pada suhu 110 oC dan kalsinasi pada suhu 800 oC, 900 oC, dan 950 oC. Perbandingan volume minyak dan methanol sebesar 1:19 dengan katalis 2% dari berat minyak. Hasil analisa XRD katalis zeolite dengan kristalinitas 1500 cps, untuk standar kualitas biodiesel parameter yang diuji yaitu densitas 0,86gr/cm2 ,viskositas 1,45mm2/s dan %yield 72,5%.
Konversi Gas CO2 menjadi Gas Metana (CH4) menggunakan Katalis Ni/Al2O3 Saputra, Mailanda; Amin, Jaksen M; Junaidi, Robert
Innovative: Journal Of Social Science Research Vol. 4 No. 5 (2024): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v4i5.13329

Abstract

Carbon dioxide (CO2) pollution is a global environmental issue that needs to be addressed. Data from the Indonesian Central Statistics Agency shows that CO2 emissions in Indonesia increased by 4.54% from 2015 to 2019. One of the researched solutions is the conversion of CO2 into methane gas (CH4) through the methanation process. This study uses a Nickel (Ni) catalyst with Al2O3 support to investigate the effect of temperature and catalyst mass variations on the conversion of CO2 into CH4. The aim of this research is to study the impact of variations in Ni/Al2O3 catalyst mass and production temperature on the conversion of CO2 into CH4 gas. Ni catalyst was chosen for its ability to absorb hydrogen and its high selectivity in CH4 formation. The use of a stainless steel reactor with a heating coil allows for higher operating temperatures compared to previous studies using glass reactors. The results of the study show that the higher the mass of the Ni/Al2O3 catalyst (5 g, 10 g, 15 g) and production temperature (100°C, 120°C, 150°C), the higher the percentage of CO2 conversion into CH4. The highest CH4 conversion percentage was obtained using 15 g of Ni/Al2O3 catalyst and a production temperature of 150°C, reaching 25.27%. This indicates that the quality of the CH4 gas produced is significantly influenced by the catalyst mass and production temperature. Additionally, the remaining unreacted CO2 gas also decreases with increasing catalyst mass and production temperature.
Pengoptimalan Pengolahan Air Pada Proses Koagulasi dengan Kombinasi Bahan Kimia Aluminium Sulfat dan Poly Aluminium Chloride PT. Tirta Sriwijaya Maju (Perseroda) Palembang Muhajir, Ahmad; Junaidi, Robert; Aznury, Martha
Innovative: Journal Of Social Science Research Vol. 4 No. 5 (2024): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v4i5.13359

Abstract

PT Tirta Sriwijaya Maju (TSM) is a clean water provider company operating in Palembang City. The TSM Water Treatment Plant (WTP) processes surface water from the Musi River with a total capacity of 230 liters/second. However, the TSM WTP is facing a shortage of clean water supply due to an increase in demand from new customers. This has led to a decrease in the duration of water flow to customers' homes. This problem is caused by 5% of the byproducts being sludge and wastewater, as well as the filter washing process that causes production to stop for 30 minutes three times a day. Therefore, this study aims to analyze the use of a combination of aluminum sulfate and poly aluminum chloride coagulants to reuse the sludge and minimize filter washing, in order to improve water treatment performance at the TSM WTP. The analysis results show that the alum and PAC dose ratio of 3:1 and 4:1 produced the highest turbidity reduction, which are 85.1% and 91.3%, as well as good floc formation. Thus, the use of this coagulant combination can be a solution to increase the productivity of the TSM WTP in providing sustainable clean water supply.
Pemanfaatan Fly Ash Batubara dalam Penurunan Kadar Besi dan Mangan Limbah Air Asam Tambang PT Bukit Asam Sari, Rahmaida; Yerizam, Muhammad; Junaidi, Robert
Innovative: Journal Of Social Science Research Vol. 4 No. 5 (2024): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v4i5.13362

Abstract

PT Bukit Asam Tbk is one of the largest coal producers in Indonesia. Fly ash, the primary waste from the operations of PLTU Bukit Asam, is a fine particle residue from coal combustion that can cause environmental pollution if not properly managed. Based on Government Regulation No. 22 of 2021, fly ash is no longer categorized as hazardous waste (B3), leading to increased research on its utilization. This study aims to utilize fly ash from PLTU Bukit Asam as an adsorbent to reduce iron (Fe) and manganese (Mn) content from acid mine drainage at PT Bukit Asam Tbk, using NaOH as a basic activator and varying contact time and adsorbent mass. Characterization of the fly ash morphology using Scanning Electron Microscopy (SEM) showed that activated fly ash has a more porous structure compared to before activation, increasing the specific surface area and adsorption potential. The study results indicated that the adsorption efficiency of Fe increased with the increasing adsorbent dose, reaching the highest efficiency of 99.95% at a dose of 500 grams and a contact time of 50 minutes. The Langmuir and Freundlich isotherm models were used to describe the adsorption process. The high determination coefficient (R²) values, ranging from 0.9474 to 0.9916 for Fe and 0.99602 to 0.99862 for Mn, indicate the suitability of these models in the studied adsorption system.
Kinetika Pembentukan Silika Gel dari Bottom Ash Sebagai Adsorben Pramudya, Nabila Salwa; Hasan, Abu; Junaidi, Robert
Innovative: Journal Of Social Science Research Vol. 4 No. 4 (2024): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v4i4.14796

Abstract

Penelitian yang berjudul “Kinetika Pembentukan Silika Gel dari Bottom Ash Sebagai Adsorben” menghasilkan beberapa kesimpulan penting. Pertama, kandungan silika yang relatif sedikit pada bottom ash menyebabkan beberapa sampel gagal membentuk gel. Kedua, efisiensi adsorpsi CuSO₄ oleh bottom ash meningkat seiring dengan peningkatan waktu kontak dan suhu operasi. Ketiga, efisiensi adsorpsi tertinggi dicapai oleh sampel C pada suhu operasi 100°C dan waktu kontak 120 menit, dengan efisiensi mencapai 68%. Terakhir, efisiensi adsorpsi menurun dengan meningkatnya konsentrasi awal Cu²⁺, karena rasio antara ion Cu²⁺ dan situs aktif pada permukaan adsorben menjadi lebih rendah.
Co-Authors ., Anerasari Abu Hasan Ahmad Muhajir, Ahmad Amanah, Tria Rizki Amin, Jaksen M Anerasari Meidinariasty Arisqi, Muhamad Muammar Arizal Aswan Aulia, Risa Azizah, Roro Rizqi Ramadhani Darmawan, Azzahrah Putri Didiek Hari Nugroho Ekawati, Linda Erwana Dewi Fadarina Fatahul Arifin, Fatahul Gilbert, Amudi Jhon Harwanda, Muhammad Sabdian HC, Fadarina Heru Santoso Hilwatullisan Indah Purnamasari Kalsum, Leila Khairunnisa, Annisa Septia Manggala, Agus Martha Aznury Miftahul Jannah Muhammad Yerizam Mustain Zamhari Niawanti, Helda Ningrum, Galuh Martiyah Oktarina, Ayu Pahlevi, Muhammad Agmerio Parega, Sultan Pramudya, Nabila Salwa Rachmatika, Nisa Rahmaniar Rahmaniar, Rahmaniar Ramadhani, Dea Rizki Riansyah, Epan Riki Wahyudi, Riki Rima Melati Rusdianasari Rusdianasari Saputra, Mailanda Sardewi, Tri Sari, Della Yusfita Sari, Rahmaida Selastia Yuliati Setiawan, Farah Kania Sofiah Sofiah Sulistyawati, Novia Ayu Tamara, Ade Toluna, Yona Utami, Winda Andea Wahyu Wulandari Wijaya, Satria Agung Yerizam, M. Yuliani, Tasya Dwi Zaman, Muhammad Zulkarnain S.T.,M.T.