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Nury, Dennis
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Energy Engineering Health Professions Medicine & Pharmacology

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The Influence of Carbonization Temperature Variations on the Quality of Durian Peel-Based Bio-briquettes Nury, Dennis; Luthfi, Muhammad Zulfikar; Saputra, Andri
Journal of Chemical Process Engineering Vol. 9 No. 3 (2024): Special Issue
Publisher : Fakultas Teknologi Industri - Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33096/jcpe.v9i3.1486

Abstract

The increasing global energy demand and environmental concerns necessitate the development of alternative energy sources. Durian peel, an abundant agricultural waste in Indonesia, presents significant potential for bio-briquette production due to its high cellulose and lignin content. This study investigates the effect of carbonization temperature on the quality of durian peel-based bio-briquettes. Carbonization was conducted at 300°C, 400°C, 500°C, and 600°C, with proximate analysis and calorific value determination performed according to SNI 01-6235-2000 standards. The results demonstrate that higher carbonization temperatures reduce moisture and volatile matter while increasing fixed carbon and calorific value. At 500°C, the bio-briquettes exhibited optimal properties, including moisture content (7.47%), volatile matter (13.54%), and a calorific value exceeding 5000 cal/g, meeting the SNI standard. However, ash content at this temperature (9.33%) slightly exceeded the standard (≤8%), highlighting a trade-off between energy efficiency and residual minerals. This study concludes that 500°C is the optimal carbonization temperature for producing high-quality bio-briquettes from durian peel, balancing energy output and combustion efficiency. Further optimization of the process is recommended to enhance fixed carbon content and minimize ash. These findings contribute to sustainable energy practices by transforming agricultural waste into a renewable energy resource, addressing both waste management and energy challenges.
EVALUASI DOSING FLOKULAN TERHADAP WAKTU PENGENDAPAN JUICE PADA SINGLE TRAY CLARIFIER DI PT. PEMUKASAKTI MANISINDAH Nury, Dennis; Sufra, Rifqi; Tiara, Mega; Aulia, Siti Aisyah Rahimah; Luthfi, Muhammad Zulfikar
ISTA Online Technologi Journal Vol. 4 No. 2 (2023): Agustus 2023
Publisher : Institut Sains dan Teknologi Al-Kamal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62702/ion.v4i2.88

Abstract

Abstrak Salah satu parameter untuk mendapatkan gula sesuai standar SNI adalah kemurnian nira. Nira merupakan cairan hasil ekstraksi tebu. Nira akan dipisahkan dari kotoran menjadi nira jernih dengan ditambahkan flokulan. Konsentrasi flokulan juga sangat berpengaruh terhadap pengendapan nira. Penelitian ini bertujuan menentukan dosis flokulan yang efektif untuk meningkatkan laju pengendapan kotoran nira dan mengetahui dosis flokulan yang dapat mempengaruhi kualitas clear juice atau nira encer. Pengujian yang dilakukan meliputi pengujian jar test, pengukuran turbiditas, pH dan pengamatan warna. Hasil penelitian menunjukkan bahwa dosis flokulan dapat mempengaruhi kualitas clear juice yang dihasilkan. Berdasarkan tiga aspek yaitu pH clear juice, laju pengendapan dan turbiditas, dosing flokulan yang baik yaitu pada 7 ppm dengan kondisi pH awal 7,8 Kata kunci: clear juice, flokulan, jar test, nira, turbiditas Abstract One of the parameters to obtain sugar according to SNI standards is the purity of nira. nira is the liquid extracted from sugarcane. Nira will be separated from impurities into clear nira by adding flocculants. Flocculant concentration is also very influential on the precipitation of nira. This study aims to determine the dose of flocculant that is effective to increase the rate of precipitation of nira impurities and determine the dose of flocculant that can affect the quality of clear juice or dilute nira. Tests conducted include jar test, turbidity measurement, pH and color observation. The results showed that the dose of flocculant can affect the quality of clear juice produced. Based on three aspects, namely clear juice pH, settling rate and turbidity, good flocculant dosing is at 7 ppm with initial pH conditions of 7.8. Keywords: clear juice, flocculant, jar test, sugarcane juice, turbidity
PENGARUH MASSA KARBON AKTIF DAN KONSENTRASI ADSORBAT DALAM PENYERAPAN ZAT WARNA METILEN BLUE Nury, Dennis; Luthfi, Muhammad Zulfikar; Deviany, Deviany; Achmad, Feerzet; Panjaitan, Jabosar Ronggur Hamonangan
ISTA Online Technologi Journal Vol. 4 No. 2 (2023): Agustus 2023
Publisher : Institut Sains dan Teknologi Al-Kamal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62702/ion.v4i2.89

Abstract

In this study, the effect of activated carbon mass and methylene blue solution concentration on adsorption capacity, the length of time required to reach equilibrium, and isothermal modeling of activated carbon material in the adsorption process were studied. The variables used are the mass of activated carbon as much as 100 mg, 75 mg, and 50 mg and the concentration of methylene blue solution of 20, 40, 60, 80, and 100 ppm. The adsorption process in the three mass variations occurred at an optimum contact time of 80 and 90 minutes with an adsorption percentage of 99%. Adsorption of methylene blue dye by activated carbon from durian peel follows Freundlich isothermal modeling with a K value of 15846.44 mg/g and 1/n of 23.666 which shows an indicator of concentration dependence of the amount of energy associated with the adsorption process.
Co-Authors Aulia, Siti Aisyah Rahimah Deviany, Deviany Feerzet Achmad Jabosar Ronggur Hamonangan Panjaitan Muhammad Zulfikar Luthfi Rifqi Sufra RR. Ella Evrita Hestiandari Tiara, Mega