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All Journal CHEMPUBLISH JOURNAL International Journal of Applied Sciences and Smart Technologies Jurnal Teknologi Kimia Mineral
Sitanggang, Yenny
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Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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REDUKSI COD PADA PALM OIL MILL EFFLUENT (POME) DENGAN MENGGUNAKAN ARANG AKTIF DARI BIOMASSA KELAPA SAWIT Tarigan, Krissandarta; Sitanggang, Yenny; Hasibuan, Fauzatu Arabica Yatasya
JURNAL TEKNOLOGI KIMIA MINERAL Vol 4 No 1 (2025): JURNAL TEKNOLOGI KIMIA MINERAL
Publisher : Politeknik ATI Makassaar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61844/jtkm.v4i1.1106

Abstract

Produksi minyak kelapa sawit yang terus meningkat secara signifikan telah menghasilkan volume limbah cair pabrik kelapa sawit (Palm Oil Mill Effluent/POME) yang tinggi, yang jika tidak ditangani secara tepat dapat mencemari lingkungan. POME mengandung konsentrasi tinggi bahan organik yang diukur melalui parameter Chemical Oxygen Demand (COD). Meskipun berbagai metode pengolahan telah dikembangkan, pendekatan yang ramah lingkungan dan berbasis limbah biomassa lokal masih belum dioptimalkan secara luas. Studi sebelumnya cenderung berfokus pada penggunaan satu jenis bahan baku untuk karbon aktif, sementara pemanfaatan kombinasi biomassa, seperti tandan kosong kelapa sawit (TKKS) dan cangkang kernel sawit, serta pengaruh komposisinya terhadap efektivitas adsorpsi COD, masih jarang diteliti secara mendalam. Penelitian ini bertujuan untuk mengisi celah tersebut dengan mengkaji pengaruh variasi komposisi karbon aktif dari TKKS dan kernel terhadap efisiensi penurunan COD dalam POME. Karbon aktif disintesis dari kombinasi TKKS dan kernel dengan variasi proporsi, kemudian digunakan sebagai adsorben dalam sistem batch. Sebanyak 0,5–1 g karbon aktif (1,5–3,5% w/v) dicampurkan ke dalam 30 mL POME, diaduk pada suhu 45°C dan kecepatan 200 rpm selama 15 menit. Kinerja adsorpsi dievaluasi berdasarkan persentase reduksi COD. Hasil menunjukkan bahwa komposisi optimum sebesar 25% TKKS dan 75% kernel mampu menurunkan COD hingga 44,21%, menunjukkan sinergi pori dan karakter permukaan dari kedua jenis biomassa. Temuan ini menunjukkan bahwa kombinasi biomassa lokal dapat menjadi solusi yang lebih efisien dan berkelanjutan dalam pengolahan limbah cair industri sawit.
Comparison the adsorption of Pb with Ecofriendly Bio-Adsorbent From Rice Husk Ash and Boiler Fly Ash Tarigan, Enda Rasilta; Sitinjak, Anna Angela; Silalahi, Meriahni; Purba, Switamy Angnitha; Sitanggang, Yenny; Purba, Darry
International Journal of Applied Sciences and Smart Technologies Volume 06, Issue 1, June 2024
Publisher : Universitas Sanata Dharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24071/ijasst.v6i1.7173

Abstract

The amount of environmental pollution is in line with the increasing of industry. Industry can generate waste in the form of solid, liquid or gas. Utilization of waste as an adsorbent is a solution that can be done in dealing with waste such as metal waste contained in water. Therefore, this research aims to make a bio-adsorbent in the form of silica from rice husk ash and boiler fly ash and know the comparison of the Pb absorbed. The research method used is an experimental method by synthesizing the manufacture of silica. Then testing of Pb based on contact time was 30 minutes, 60 minutes, 90 minutes and 120 minutes. The results showed that the two silica-based bio-adsorbents could adsorb Pb. Bio-adsorbent from rice husk ash absorbed 56.51% of Pb in 30 minutes, 52.93% in 60 minutes, 48.65% in 90 minutes and 43.55% in 120 minutes. The bio-adsorbent from the fly ash boiler absorbed 50.15% of Pb in 30 minutes, 44.28% in 60 minutes, 38.48% in 90 minutes and 36.45% in 120 minutes. Bio-adsorbent from rice husk ash absorbs more Pb ions than from boiler fly ash. Because the silica in the rice husk ash forms a collection in the pores, whereas in the fly ash boiler there is silica that is spread out. This research can be a basis for further research in the form of dye bio-adsorbent products based on their short use time.
Valorization of Oil Palm Empty Fruit Bunches into Sulfonated Carbon Catalysts for Esterification of Vegetable Oil Saragih, Gimelliya; Purwandari, Vivi; Silitonga, Nelson; Abdillah; Sitanggang, Yenny; Zai, Liver; Mukhtissiarni
Chempublish Journal Vol. 9 No. 2 (2025): Chempublish Journal (July - December)
Publisher : Department of Chemistry, Faculty of Science and Technology Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/chp.v9i2.47630

Abstract

This research explores the physicochemical characteristics of activated and sulfonated carbons derived from palm empty fruit bunches (OPEFB) as renewable raw materials, and assesses their catalytic performance in the esterification of waste cooking oil (WCO) for biodiesel synthesis. Activated carbon was sulfonated via exposure to high-concentration sulfuric acid (H₂SO₄) at 7%, 10%, and 13%, facilitating the incorporation of –SO₃H groups. A range of analytical techniques, including TGA, DTA, FTIR, BET, and SEM, was employed to characterize the synthesized materials. Among the synthesized catalysts, the sulfonated carbon with 10% acid treatment (SA 10%) exhibited the most favorable characteristics: demonstrated a surface area of 41.895 m²/g and retained its structure under thermal stress, and a strong presence of sulfonic functional groups. Esterification tests at 65 °C for 2 hours showed a maximum yield of 43.28% using 3 g of SA 10%, while 5 g resulted in a lower yield of 30.32%. The results demonstrate that SA 10% is a promising eco-friendly heterogeneous catalyst for converting low-cost, waste-based feedstocks into biodiesel under mild reaction conditions.
Co-Authors Abdillah Hasibuan, Fauzatu Arabica Yatasya Mukhtissiarni Purba, Darry Purba, Switamy Angnitha Purwandari, Vivi Saragih, Gimelliya Silalahi, Meriahni Silitonga, Nelson Tarigan, Enda Rasilta Tarigan, Krissandarta Zai, Liver