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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Journal of Student Research
Rahmad Firnandi
Politeknik Perkapalan Negeri Surabaya
Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Public Health Social Sciences

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Potensi Penambahan Adsorben Tempurung Kelapa (Cocos nucifera) untuk Regenerasi Minyak Jelantah Rahmad Firnandi; Fendika Bayu Pratama; Alvin Dwi Kusuma Ardiansyah; Denny Oktavina Radianto
Journal of Student Research Vol 1 No 4 (2023): Juli: Journal of Student Research
Publisher : Sekolah Tinggi Ilmu Ekonomi Trianandra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jsr.v1i4.1342

Abstract

Minyak jelantah merupakan minyak yang dipakai secara berulang-ulang. Seringnya pemakaian minyak jelantah menyebabkan penurunan kualitas minyak seperti warna menjadi coklat dan timbulnya bau menyengat atau tengik yang berpotensi membahayakan kesehatan tubuh. Tujuan dari penelitian ini adalah mengidentifikasi potensi penambahan adsorben tempurung kelapa (Cocos nucifera) terhadap regenerasi minyak jelantah. Hasil penelitian ini didapatkan bahwa adsorben tempurung kelapa setelah dilakukan pengarangan dan aktivasi dapat meregenerasi minyak jelantah yang ditinjau dari berubahnya warna pada minyak jelantah yaitu menjadi lebih cerah atau kuning dan penurunan kadar asam lemak bebas atau FFA menurun hingga 75,73% dari kadar FFA minyak jelantah awal 1,03% menjadi 0,25%.
Evaluating the Environmental Impacts of Thermoplastic Based-Product Manufacturing Using Life Cycle Assessment (CML-IA Midpoint) Rahmad Firnandi; Tanti Utami Dewi; Rizka Amalia; Mirna Apriani
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 23, No 2 (2026): July 2026
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v0i0.%p

Abstract

The rapid growth of thermoplastic manufacturing in Indonesia, particularly in thermoplastic-based products such as children’s toys, has not been accompanied by sufficient environmental assessment, especially Life Cycle Assessment (LCA). While previous studies have mainly focused on extrusion processes, this study incorporated additional processes, such as spray coating, to provide a more representative evaluation. This study evaluated the environmental impacts of vacuum cleaner manufacturing using LCA with the CML-IA midpoint method. The data were processed using OpenLCA 2.4.1 and the ELCD database. The results indicate that producing one unit of a vacuum cleaner contributes to multiple environmental impact categories, including acidification (0.001 kg SO₂-eq), eutrophication (0.0001 kg PO₄³⁻-eq), Freshwater Aquatic Ecotoxicity (0.001 kg 1,4-DB eq), and Global Warming Potential (4.208 kg CO₂-eq). Additional impacts were identified in Human Toxicity (0.406 kg 1,4-DB eq), Marine Aquatic Ecotoxicity (2558.698 kg 1,4-DB eq), Photochemical Oxidation (0.000025 kg C₂H₄-eq), and Terrestrial Ecotoxicity (0.041 kg 1,4-DB eq). Among these, Marine Aquatic Ecotoxicity emerged as a dominant contributor because of the presence of hydrogen fluoride released into the environment during the spraying process. To address this issue, mitigation measures, such as substituting inorganic paints in the spray coating process with organic or ecolabel-certified alternatives, have been proposed
Co-Authors Alvin Dwi Kusuma Ardiansyah Fendika Bayu Pratama Mirna Apriani Radianto, Denny Oktavina Rizka Amalia Tanti Utami Dewi