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All Journal Journal of Research and Technology ETAM: Jurnal Pengabdian kepada Masyarakat Journal Serambi Engineering (JSE)
Dedy Irawan
Politeknik Negeri Samarinda
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ALKALINE PRETREATMENT DAN PROSES SIMULTAN SAKARIFIKASI-FERMENTASI TERHADAP KADAR ETANOL DARI SERABUT KELAPA Era Devi Istihaji; Joko Budiarto; Lisa Mastura; Rianthy Juniar; Muhammad Cahyo; Dedy Irawan
Journal of Research and Technology Vol. 3 No. 1 (2017): JRT Volume 3 No 1 Jun 2017
Publisher : 2477 - 6165

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Abstract

This mature coconut fibers utilized have traditionally been handcrafted with low economic value and mostly just be a waste. In this study, coconut fibers used as materials for bioethanol. A total of 100 grams of fibers delignified by using NaOH solution with a concentration variation of 1%, 1.5%, 2%, 2.5% and 3%, which was created earlier. Delignification carried out for 90 minutes at a temperature of 90°C and the stirring rotation of 150 rpm. Then the results of delignification rinsed and fibers are fermented for 7 days simultaneously using 15% Saccharomyses cerevisiae, Trichoderma sp 10% and 5% Aspergillus niger. Fermented then filtered and distilled liquid to be taken. The results were analyzed using GC distillation and obtained the best results with ethanol concentration of 213.12 mg / mL and the resulting yield of 2.69%.
Pelatihan Desain Kemasan dan Perhitungan Harga Jual untuk Produk UMKM Desa Salo Palai Dwi Cahyadi; Amiril Azizah; Dita Andansari; Ratna Wulaningrum; Zainal Arifin; Ahyar M. Diah; Dedy Irawan; Karyo Budi Utomo; Suparno Suparno; Said Keliwar
Jurnal ETAM Vol. 5 No. 1 (2025): FEBRUARY
Publisher : Politeknik Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46964/etam.v5i1.1204

Abstract

Salo Palai Village is one of the villages in Kutai Kartanegara Regency, East Kalimantan. Salo Palai Village has several garden products such as pepper and other processed garden products such as banana chips, fruit syrup and so on. With garden products and processed garden products, this village has the potential to be able to develop the welfare of its community through MSMEs from several of these products. As an MSME business that continues to grow, good packaging and calculating the selling price of MSME products are things that should be considered in attracting and introducing their products to consumers in order to increase the value and number of sales of their products. By conducting lecture methods and direct training to participants, it will have a direct impact on them on how to design good packaging and promotions for MSMEs. Thus, community service activities in the field of design and promotion through financial calculations for product sales are expected to be an effort to provide an understanding of the importance of increasing sales value.
Efektivitas Biokoagulan Berbasis Ampas Tebu dalam Pengolahan Palm Oil Mill Effluent: Analisis Pengaruh Dosis Sekar Ayu Setyowati; Kusyanto; Dedy Irawan; Nur Fadillah Ramadhani; Alfidah Tyas Suciningrum
Jurnal Serambi Engineering Vol. 11 No. 2 (2026): April 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v11i2.1624

Abstract

Limbah cair kelapa sawit (POME) merupakan hasil dari proses perebusan/sterilisasi dan klarifikasi yang mengandung sludge, air kondensat, dan air sisa cucian pabrik. Pengolahan konvensional POME menggunakan sistem kolam terbuka kurang efektif karena dapat menimbulkan masalah lingkungan. Oleh karena itu, diperlukan alternatif pengolahan POME yang ramah lingkungan seperti penggunaan biokoagulan ampas tebu. Penelitian ini bertujuan untuk mengetahui efektifitas dan pengaruh dosis biokoagulan dari ampas tebu pada pengolahan POME. Ampas tebu dengan kandungan lignoselulosa tinggi, memiliki potensi sebagai agen biokoagulan. Ampas tebu yang telah dipreparasi kemudian didelignifikasi dengan NaOH 8% pada suhu 120°C selama 120 menit untuk menghasilkan biokoagulan. Pengaplikasian dilakukan dengan proses klarifikasi dengan variasi dosis 7,5; 10; 12,5; 15; dan 17,5 (g/L). Pengaplikasian bikoagulan dilakukan pengadukan cepat selama 2 menit, pengadukan lambat selama 20 menit, dan diikuti dengan sedimentasi selama 60 menit. Setelah itu dilakukan analisis pH, TSS, dan kekeruhan. Peningkatan dosisi bikoagulan meningkatkan nilai pH dan penurunan nilai kekeruhan. Dosis optimal diperoleh pada 10 g/L dengan efektivitas penurunan TSS sebesar 32,49%, kekeruhan sebesar 9,43%, dan nilai pH 5,1.
Co-Authors Ahyar M. Diah Alfidah Tyas Suciningrum Amiril Azizah Dita Andansari Dwi Cahyadi Era Devi Istihaji Joko Budiarto Karyo Budi Utomo Kusyanto Kusyanto Lisa Mastura Muhammad Cahyo Nur Fadillah Ramadhani Ratna Wulaningrum Rianthy Juniar Said Keliwar Sekar Ayu Setyowati suparno Suparno Zainal Arifin