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All Journal Jurnal Natur Indonesia Jurnal Teknik Kimia USU Komunikasi Fisika Indonesia Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Jurnal Pengabdian UntukMu NegeRI ALCHEMY Jurnal Penelitian Kimia IJEBA (International Journal of Economic, Business & Applications) JURNAL PHOTON Acta Biochimica Indonesiana Acta Chimica Asiana Jurnal Inovasi Pendidikan dan Sains Journal of Applied Materials and Technology Jurnal UNITEK KATALIS: Jurnal Penelitian Kimia dan Pendidikan Kimia Dinamika Lingkungan Indonesia Jurnal Teknik Kimia USU International Journal of Renewable Energy Development al Kimiya : Jurnal Ilmu Kimia dan Terapan
Amir Awaluddin
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Pengaruh Penambahan KOH Terhadap Kulit Kerang (Anadara granosa) Sebagai Katalis Dalam Pembuatan Biodiesel Afandi, Trisno; Nurhayati; Awaluddin, Amir; Nainggolan, Fernando; Rahmat, Nahzim
KATALIS: Jurnal Penelitian Kimia dan Pendidikan Kimia Vol 8 No 2 (2025): Jurnal Katalis Vo.8 No.2 Tahun 2025
Publisher : Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/katalis.v8i2.13377

Abstract

The utilization of waste as a source of catalytic material in biodiesel production continues to be developed, including waste from cockle shells. In this study, the addition of KOH to the suspension of calcined cockle shells was carried out to increase the catalyst activity in biodiesel production through the transesterification reaction. The catalyst was prepared through the following stages: 1) calcination of cockle shells at 900°C for 10 hours, 2) addition of KOH to the suspension of calcined cockle shells with varying K percentages of 1%; 3%; and 5%, then the mixture was calcined at 600°C. The formed catalyst contains the minerals portlandite (Ca(OH)2) and calcite (CaCO3) based on the X-Ray Diffraction test. The addition of KOH to the suspension of calcined cockle shells was successfully carried out through the K content test using Atomic Absorption Spectroscopy. The K concentration measurement data increased along with the increase in the amount of K added, respectively at 0% K of 2381 ppm, 1% K of 2425 ppm, 3% K of 3183 ppm, and 5% K of 3800 ppm. The basicity of the catalyst was measured by titration using benzoic acid with the result of increasing basicity after the addition of KOH, each basicity of the catalyst 0% K was 1.700 mmol benzoic acid/g, 1% K was 1.700 mmol benzoic acid/g, 3% K was 1.865 mmol benzoic acid/g, and 5% K was 1.965 mmol benzoic acid/g. The catalyst activity test data in biodiesel production showed an increase in the percentage of biodiesel yield, respectively at 0% K of 56.17%, 1% K of 57.72%, 3% K of 76.33%, and 5% K of 76.85%. The catalyst activity also increased based on the measurement data of methyl ester content in biodiesel using Gas Chromatography, respectively at 0% K of 96.42%, 1% K of 97.5%, 3% K of 98.36%, and 5% K of 97.79%. The results show that the catalyst has the potential to be developed and applied in the biodiesel industry as an environmentally friendly catalytic material.
OPTIMASI PERTUMBUHAN ISOLAT FUNGI INDIGEN Penicillium sp. LBKURCC153 PENDEGRADASI NAFTALENA MENGGUNAKAN GLUKOSA SEBAGAI KOSUBSTRAT PADA MINIMAL MEDIUM Aisyah Fitrida; Riryn Novianty; Saryono Saryono; Amir Awaluddin; Nova Wahyu Pratiwi
Jurnal Inovasi Pendidikan dan Sains Vol 1 No 1 (2020): April
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Nahdlatul Wathan Mataram

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Abstract

Naphthalene is one of the pollutants that is difficult to degrade because it belongs to the PAH group and it was carcinogenic. The purpose of this study was to test the effectiveness of an indigenous fungi isolate from Riau Province to degrade naphthalene toxic compounds with glucose as growth cosubstrate. Naphthalene degradation by fungi isolates was influenced by several parameters, including biomass, pH and percentage degradation measured at 0, 4, 8, 12 and 16 days of incubation. Based on biomass parameters, the isolate of Penicillium sp. LBKURCC153 experienced an exponential phase until the 16th day. In the exponential phase, the maximum number of cells increases which shows a positive response to the use of glucose and naphthalene as the carbon and energy source. Isolate decreased their pH from 7 to 3,8, that mean proves the growth activity produce organic acid metabolites of degrade naphthalene. Isolate were also able to degrade naphthalene respectively 27,5% by Penicillium sp. LBKURCC153 in medium with glucose at optimation time until 4 th day incubation. In conclusion, glucose cosubstrate can increase naphthalene degradation percentage by Penicillium sp. LBKURCC153.
Co-Authors ', Itnawita ', Padil ', Wahyuni - Hafizhah -, Presetya - . Zulfan Adrianto Ahmad Adrianto Ahmad Afandi, Trisno Afra Juwita Aisyah Fitrida Akmal Muchtar Aman Aman Aman Aman Amilia Linggawati Amiruddin, Erwin Amun Amri Anna Ridha Utami Arif Kurnia Auzar, Auzar Dian Anggraini Elis Damayanti Emrizal M. Tamboesai Emrizal Mahidin Tamboesai Endang Maya Sari Erwin Amiruddin Fachran Putra Deraf, Ivano Fachry Abda El Rahman Febrina, Wetri Hadilala, Teguh P Hafizhah, - Halida Sophia Hartini Azhar Hasan Yilmas Ilahi, Aulia Nur Irawati Suherman Itnawita Itnawita ' M. Zulfikri Mokhamad Subkhan Monita Olivia Muhammad Rizki Muhdarina Muhdarina Muhdarina Mukhlis Mulyani, Yenni Muras , Yuharmen Nainggolan, Fernando Nasution, Musyirna Nova Wahyu Pratiwi Nova Wahyu Pratiwi Novianty, Riryn Nurhayati Nurhayati Nurhayati Nurwijayanti Pepi Helza Yanti Pepi Helza Yanti Prasetya, Prasetya Prawiranegara, Barata Aditya Presetya - - Rahmat, Nahzim Rahmondia N. Setiadi Ramadhanti, Aulia Rizki Riska Anggraini Riska Anggraini, Riska Rita Marlina Rosa Murwindra, Rosa Rudi Rahmadi Saryono Saryono Saryono Saryono ' Saryono Saryono Saryono, M.Or. S.Pd. Jas. Setia Utama, Panca Silvera Devi Siregar , Sri Hilma Siregar, Siti Saidah Siregar, Siti Saidah Siregar, Sri Hilma Slamet Wahyuningsih Sri Nelvia Subkhan, Mokhamad Suci Apriani Suci Apriani Tengku Abu Hanifah Wahyu Pratiwi , Nova Wisnu Aditya Yilmas, Hasan Yuli Haryani Zuchra Helwani, Zuchra Zulfan Saam Auzar