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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Journal of Natural Sciences and Mathematics Research CHEESA: Chemical Engineering Research Articles Walisongo Journal of Chemistry Jurnal Energi Baru dan Terbarukan Jurnal Rekayasa Proses Digital Learning, Social Science, and Life-course Studies
Ramandani, Adityas Agung
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Physics Social Sciences

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Journal : CHEESA: Chemical Engineering Research Articles

 1 
Optimization and Characterization of Adsorbent from Palm Kernel Shell Waste Using H3PO4 Activator Herlambang, M. Julian; Ramandani, Adityas Agung; Cendekia, Devy; Alvita, Livia Rhea; Wulandari, Yeni Ria; Shintawati, Shintawati; Purnani, Mawar Siti; Efendi, Dimas Amirul Mukminin Nur
CHEESA: Chemical Engineering Research Articles Vol. 6 No. 2 (2023)
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/cheesa.v6i2.15906.118-125

Abstract

Palm kernel shell is solid waste produced from the processing of crude palm oil (CPO). In this context, phosphoric acid (H3PO4) serves as an essential activator for producing an adsorbent with maximum micropore under operating conditions at a temperature of <450oC. Therefore, this study aimed to determine the optimal adsorbent condition of the palm kernel shell using H3PO4activator. The production process was optimized using Response Surface Methodology (RSM) and Central Composite Design (CCD) methods with activator concentration variations of 4%, 5%, and 6%, at activation times of 23 hours, 24 hours, and 25 hours, respectively. The quality of the adsorbent produced fulfilled SNI standard 06-3730-1995, characterized by water content of 1.001%, ash content of 5.767%, missing substance level of 18.932%, and fixed carbon content of 75.301%. Furthermore, this work effectively optimized the RSM and CCD adsorbent production process, achieving 4.785% variation in activator concentration and 24.679 hours activation time.
Pemanfaatan Lignin Serai Wangi Sebagai Lignin Resorsinol Formaldehida (LRF) Menggunakan Ultrasonic Microwave-Assisted Extraction (UMAE) Ramandani, Adityas Agung; Shintawati, Shintawati; Aji, Salomo Pranata; Sunarsi, Sunarsi
CHEESA: Chemical Engineering Research Articles Vol. 5 No. 1 (2022)
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/cheesa.v5i1.10348.40-48

Abstract

Limbah padat serai wangi mengandung lignin cukup tinggi yang dapat berpotensi untuk dikembangkan menjadi berbagai produk komersial, salah satunya adalah perekat. Tujuan dari penelitian ini adalah untuk mendapatkan kondisi optimum dalam pembuatan lignin resorsinol formaldehida (LRF) dari limbah serai wangi menggunakan metode Ultrasonic Microwave-Assisted Extraction (UMAE). Rancangan percobaan menggunakan response surface methodology (RSM) khususnya Box-Behnken Design (BBD). Variabel bebas dalam riset ini adalah volume NaOH (10, 13 dan 16 mL), waktu reaksi (10, 20 dan 30 menit), dan komposisi perekat (4, 6 dan 8 gram). Hasil penelitian menunjukkan perekat lignin LRF yang dihasilkan memenuhi SNI 06-4567-1998 untuk parameter berat jenis, waktu gelatinisasi, dan sisa penguapan. Daya tahan rekat (delaminasi) LRF yang dihasilkan memenuhi standar JAS 1996 yaitu rata rata 0%. Kondisi optimum pembuatan LRF dicapai pada penambahan NaOH 15,0561 mL, waktu reaksi 20 menit dan massa lignin 4 gram dengan daya tahan rekat (delaminasi) tertinggi yang dihasilkan 1 %.
Silica Adsorption from Boiler Effluent Using Activated Charcoal Derived from Palm Oil Fibre Waste with H3PO4 Activator Fernando, Ricky; Shintawati, Shintawati; Alvita, Livia Rhea; Wulandari, Yeni Ria; Ramandani, Adityas Agung; Arief, Febrina
CHEESA: Chemical Engineering Research Articles Vol. 7 No. 2 (2024): In Progress
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/cheesa.v7i2.17500.75-83

Abstract

Most waste from palm oil processing can be repurposed, such as using palm fibre waste to create activated charcoal. This study aimed to assess the effectiveness of activated charcoal, produced by activating palm fibre with H₃PO₄, in removing silica from boiler output water. The production process involved pyrolysis at 200ºC for 2.5 hours. A completely randomized design was employed to test the effects of different H₃PO₄ concentration (with 1 to 2 M) and reaction times (30, 60, and 90 min). Results revealed that the moisture content of the activated charcoal ranged from 1.96% to 2.42%, ash content from 9.82% to 21.63%, and iodine adsorption from 366.43 to 457.87 mg/g. The highest silica adsorption capacity (3.5 g/g) was achieved with 2 M H₃PO₄ for 90 min. This indicates that palm fibre-derived activated charcoal is effective for silica removal, highlighting it is potential for enhancing environmental sustainability in industrial sector.
Co-Authors Afifah, Dian Ayu Afifah, Meita Agustina, Tika Aji, Salomo Pranata Alvita, Livia Rhea Arief, Febrina Cendekia, Devy Dahla, Astryd Viandila Didik, Nurjan Efendi, Dimas Amirul Mukminin Nur Eko Risdianto Elsyana, Vida Fadian Farisan Silmi Herlambang, M. Julian Indah Maulidia, Indah Oktaf Rina Prihatini, Chindy Aulia Purnani, Mawar Siti Putri, Cynthia Eka Putri, Herma Kurnia Ricky Fernando Shintawati shintawati, shintawati Siti Purnani, Mawar Sudibyo Sudibyo Sukma, Vinda Avri Sunarsi, Sunarsi Syamsuri, Iyappateya Gelegar Dirgantara Teguh, Dedi Wulandari, Yeni Ria