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All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Eksergi: Chemical Engineering Journal Jurnal Riset Kimia Jurnal Ilmiah Biosaintropis (Bioscience-Tropic) Jurnal Ilmiah Pertanian Dinamisia: Jurnal Pengabdian Kepada Masyarakat JMM (Jurnal Masyarakat Mandiri) Martabe : Jurnal Pengabdian Kepada Masyarakat Journal of Applied Materials and Technology Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Journal of Bioprocess Chemical and Environmental Engineering Science Jurnal Abdi Masyarakat Indonesia
Alfarisi, Cory Dian
Chemical Engineering Department, Universitas Riau, Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Other

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Journal : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

 1 
Sintesis Biodiesel Dari Palm Fatty Acid Destillate (PFAD) Menggunakan Katalis Cu-Hap Dengan Variasi Kecepatan Pengadukan Dan Waktu Reaksi Putri, Desi Erika; Azis, Yelmida; Alfarisi, Cory Dian
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

This research will shown the effect of stirring velocity and reaction time to biodiesel yield production and determine the physical and chemical characteristics of biodiesel. Palm fatty acid destillate (PFAD) synthesis which is a by-product of cooking oil processing becomes biodiesel through esterification. The esterification was done by mixing PFAD by 25 gram with Cu-HAp catalyst 0.25 gram and 97 ml methanol. Stirring velocity is 250 rpm, 300 rpm and 350 rpm and reaction time variation is 2 hours, 3 hours and 4 hours at 60 ° C. The highest biodiesel yield at 300 rpm stirring speed with a reaction time of 2 h is 63%. For physics characteristic of biodiesel in the form of density are: 0,884 gr/ml - 0,902 gr/ml, viscosity: 4,181 cSt - 5,029 cSt, acid number: 0,553 mg KOH/g oil - 1,661 mg KOH/g oil and calorific value: 9048 - 9813 Kcal / kg produced according to biodiesel standards SNI-04-7182-2006. For the analysis of GC-MS (Gas Chromatography-Mass Spectroscopy) the main compounds found in biodiesel from PFAD are methyl myristate, methyl palmitate, methyl linoleate, methyl oleate and methyl stearate is 78,88%Keywords: Biodiesel, PFAD, Cu-HAp catalyst, esterification.
Pembuatan Batu Bata Dengan Penambahan Tanah Terkontaminasi Minyak Annisa Aprilya Putri; Ahmad Fadli; Cory Dian Alfarisi
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The petroleum industry is one of the largest oil and gas companies in Indonesia. From the exploration and production of petroleum, it turns out that the petroleum industry also produces petroleum waste which can pollute the soil. For waste handling, it is necessary to have efficient and environmentally friendly petroleum processing, in the form of brick making. The purpose of this study was to study the effect of adding a mixture of oil and clay contaminated soil and the effect of drying time on the bricks obtained from the tests carried out, namely testing compressive strength, density, water absorption, and porosity. The procedure was started with weighing all materials with variations of 2 kg, 10 kg and 14 kg oil-contaminated soil (TTM), mixing oil and cement, and then stirring water until it was homogeneous. the next step has been the processed of molding the stones and then drying them for 3, 5 and 7 days and finally the burning process has been carried out. Variations were studied by differentiating the percentage composition of the soil mixture contaminated with oil and clay used. The test results from the compressive strength, density, absorption and porosity test show that the best sample for consumers is the sample with 2 Kg oil-contaminated soil on drying for 7 days while the best sample in terms of utilization is the sample with the composition of 14 Kg oil-contaminated soil.Keywords: brick, compressive strength, porosity, oil contaminated soil
Pengaruh Konsentrasi Gula Dan Waktu Fermentasi Terhadap Fermentasi Asam Asetat Menggunakan Kulit Nanas Dan Acetobacter Aceti Ahmad Dedi Fadillah; Chairul Chairul; Cory Dian Alfarisi
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Pineapple (Ananas comosus (L) Merr) is a fruit which has a golden yellow color. Pineapple can thrive in tropical climates such as in Indonesia. Pineapple production in Indonesia in 2009 was 1,558,196 tons. The sugar contained in pineapple is 2.32% glucose, 1.42% fructose, and 7.89% sucrose. So that it can be used as an alternative material for the production of acetic acid. Acetic acid can be produced from raw materials containing starch or sugar by fermentation using microorganisms. The purpose of this study was to determine the effect of fermentation time and sugar concentration on the yield of acetic acid produced and to find out the optimal time and concentration of sugar in pineapple rind fermentation into acetic acid using Saccharomyces cerevisiae and Acetobacter aceti bacteria. The initial sugar concentration variations were 10%, 20%, and 30%, while the fermentation time was 2, 3, 4, 5, 6 days. The acetic acid fermentation process was carried out at pH 6, stirring speed 200 rpm and 10% inoculum. The test results using the Nelson-Samogyi method showed that the highest sugar concentration was 30% (174,678 g/L) of sugar added to pineapple rind raw material. The highest concentration of acetic acid was obtained 35.581 g/L and the yield of 30.555%. The best fermentation time is the 6th day of fermentation.Keywords: Acetobacter aceti, acetic acid, fermentation, inoculum, pineapple
Isoterm Dan Termodinamika Adsorpsi Pada Methylene Blue Menggunakan Hidroksiapatit Dian Novita Rahmawaty; Yelmida Azis; Cory Dian Alfarisi
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The adsorption model was carried out to find out the appropriate adsorption mechanism in the methylene blue adsorption process using hydroxyapatite. The aim of this study was todetermine the equilibrium time, the effects of methylene blue’s initial concentration, adsorption temperatures and the adsorption models. Analysis was conducted by spectrophotometric method, then tested on the Langmuir, Freundlich, Temkin and Dubinin-Radushkevich (DRK) isotherm model. The result showed that the best initial concentration of methylene blue for adsorption temperature 30℃ with adsorption capacity 2,090 mg/g and 41,79% of removal efficiency. The adsorption followed the Freundlich isotherm model. Thethermodynamic parameters (ΔH = -8,4 kJ/mol, ΔG < 0 dan ΔS = -80,70 J/mol K) indicated that he adsorption process was a physically and spontaneously excothermic reaction.Keywords: adsorption, Freundlich, hydroxyapatite, isotherm, methylene blue.
Pembuatan Asam Asetat Dari Sari Kulit Nenas (Ananas Comosus) Menggunakan Acetobacter Aceti Dengan Variasi Volume Inokulum Dan Waktu Fermentasi Multi Handriyani; Chairul Chairul; Cory Dian Alfarisi
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Acetic acid is an organic chemical compound that is colorless and has a sharp odor. Pineapple skin can be used as a raw material for making acetic acid by utilizing microorganisms. Microorganisms used to process pineapple skin extract into bioethanol are Saccharomyces cerevisiae and the microorganism used to process bioethanol into acetic acid is Acetobacter aceti. The purpose of this study is to convert sugar in pineapple skin juice through the fermentation process to acetic acid and determine the effect of variations inoculum volume and fermentation time on the resulting acetic acid. This research phase consisted of raw material preparation and inoculum making, fermentation and analysis. The variation of bioethanol fermentation time is 1, 3 and 5 days, while the variation of the inoculum used in this study is 10%; 13%; and 16%. Fermentation results are taken after 1, 3, 5, 7 and 9 days. Optimum fermentation results are bioethanol 5% (v / v) or 39.47 g / L and Yield 53.94% and acetic acid concentration 37.79 g / L and Yield 91.80%. This maximum concentration was obtained on the 9th day of acetic acid fermentation in 13% inoculum of Acetobacter aceti with bioethanol substrate with a fermentation time of 5 days. Keywords : Acetic acid, bioethanol, pineapple skin juice, fermentation, conversion
Co-Authors Adam Rafif Aldori Ahmad Dedi Fadillah Ahmad Fadli Ahmad Fadli Ahmad Fadli Aldo Seveno Mahendra Annisa Aprilya Putri Barus, Surya Danta Alberto Chairul Chairul Delef, Fahrul Fajar Desi Heltina Detria Khaerun Nisa Dian Novita Rahmawaty Drastinawati Drastinawati Drastinawati Drastinawati Drastinawati Drastinawati, Drastinawati Elvi Yenie Habib, Alltop Amri Ya Ida Zahrina Idral Amri Khairat, Khairat Komalasari Komalasari Muhammad Ichwan Pradana Multi Handriyani Mutamima, Anisa Nurfatihayati Padil Padil Purnama, Indra Putra, Eden Putri, Desi Erika Rozanna Sri Irianty Silvia Reni Yenti Silvia Reni Yenti Silvia Reni Yenti Suhendri Suhendri Sunarno Sunarno Sunarno Utama, Panca Setia Wisrayetti Wisrayetti Wisrayetti Wisrayetti Yelmida Azis Yulia Fitri Yusnimar Sahan