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All Journal Jurnal Sains dan Teknologi Proceedings of Annual International Conference Syiah Kuala University - Life Sciences & Engineering Chapter Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Jurnal Teknik Jurnal Serunai Bahasa Indonesia Unri Conference Series: Community Engagement Jurnal Transformasi Administrasi Catimore: Jurnal Pengabdian Kepada Masyarakat
Edy Saputra
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Journal : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Adsorpsi Zat Warna Methylene Blue Menggunakan Spent Bleaching Earth Sebagai Adsorben Tejo Yulandi; Edy Saputra; Syarfi Daud
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The industrial waste especiallytextile waste is one of the causes of environmental problems that require effective and efficient processing. Adsorption is a separation method that is simple, easy to operate, flexible, affordable cost and does not produce toxic products. The purpose of this study calculates the efficiency of decreasing the concentration of the colors contained in metyhlene blue dye and studying the adsorption capacity to variations in pH, adsorbent mass and stirring time. The maximum wavelength of the dye methylene blue 660 nm. The efficiency of 99.973 % decline in the highest concentration. Isotherm corresponding to methylene blue dye adsorption by spent bleaching earth is Langmuir isotherm with adsorption capacity to variations in pH of 0.5035 mg/g, the adsorbent mass variation of 0.3816 mg/g, the stirring time variation of 0.5012 mg/g.Keywords : Adsorption, Methylene Blue, Spent Bleaching Earth, EfficiencyDecreased Concentration, Adsorption Capacity
Pembuatan Biodiesel Dari Minyak Biji Kapuk (Ceiba Pentandra) Dengan Katalis Lempung Teraktivasi; Pengaruh Konsentrasi Katalis Dan Aktivasi Katalis Nurhasanah Nurhasanah; Syaiful Bahri; Edy Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Biodiesel is a methyl ester transesterification reaction products of triglycerides derived from vegetable oils or animal fats. One among of vegetable oils that can produce biodiesel is kapok seed oil. Kapok seed oil had higher levels of unsaturated fatty acids are high that they could be made to produce biodiesel. This research is aim to make biodiesel from kapok seed oil, studying the effect of concentration of activated clay catalyst to the amount of biodiesel produced, determine the characteristics of biodiesel from kapok seed oil and determine the best catalyst activation of the activation of acid or base. The transesterification process occured at a temperature of 60oC, the weight of oil 50 grams, the reaction time 1,5 hours, mole ratio of oil to methanol 1 : 9, variation of the catalyst concentration 0,1%, 0,5%, and 1%-weight of oil, and variations of acid solution (0,47%, 0,62%, dan 0,78%) and alkaline solution (0,33%, 0,44%, 0,66%) for activation of catalyst. From the result is obtained the highest biodiesel of 1% catalyst concentration of acid activation 0,78%, methanol mole ratio of 1: 9 for 1,5 hours as much as to 92,62 %. Characterization of physical properties of biodiesel is density of 871 kg/m3, 3,11 mm2/s kinematic viscosity, acid number 0.36 mg KOH / g sample, and the flash point 200oC respectivity.Keywords: biodiesel, catalysts, clay, activation of acids, activation of bases, transesterification
Transesterifikasi Minyak Sawit Off-Grade Menjadi Biodiesel Menggunakan Katalis CaO Yang Diimpregnasi Dengan Limbah Serbuk Besi Muhammad Rahman; Zuchra Helwani; Edy Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Off-grade oil is a raw material for biodiesel that has ALB levels> 2% so that the production of biodiesel made by two stage reaction, the esterification and transesterification. In general, biodiesel is produced using homogeneous catalysts. Homogeneous catalysts can be replaced by a heterogeneous catalyst. CaO catalyst has a high alkalinity but has shortcomings in the process of separation of the reaction products. Waste iron powder can be used as a support and to provide a catalyst Ca2Fe2O5 metal forming properties. This study aims to create a catalyst that has a high alkalinity and metallic, and study the performance of the catalyst in the transesterification reaction of palm oil off-grade. Esterification process were reacted at 60°C with a mole ratio of oil: methanol of 1:12 and 1% H2SO4 catalyst -b. The esterification reaction can reduce levels of ALB from 12.47% to 0.36%. Transesterification is done by varying the mole ratio of oil: methanol in a row is 1: 6, 1: 8 and 1:10, the amount of catalyst modification 1% -b, -b 2%, 3% -b, a reaction temperature of 50°C, 60°C, 70°C, and the reaction time 2 hours. Processing data using Response Surface Area (RSM), the amount of attack using Central Composite Design (CCD). The resulting yield ranging from 23.19% to 52.34%. The highest yield obtained at 70°C with a mole ratio of oil: methanol of 1:10 and the amount of catalyst Ca2Fe2O5 1%-b. Biodiesel characteristics such as density, kinematic viscosity, acid number and flash point are in accordance with the standards of Indonesian biodiesel. The most significant process conditions to yield biodiesel is the ratio of the mole ratio of oil: methanol and the amount of catalyst.Keywords : Biodiesel, Catalyst, Off-grade Palm Oi, Transesterification, Wasted Iron
Pengolahan Limbah Tekstil Artifisial (Zat Warna Reaktif) Dengan Proses Oksidasi Katalitik Menggunakan Nano-Mn/Carbon Sphere Sri Meilani; Edy Saputra; Chairul Chairul
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The latest innovations in the processing of textile waste is using advanced oxidation processes (AOPs) by oxidant capable of generating a radical sulphate (SO4*). The purpose of this research is to determine catalyst activity of Nano-Mn/CS in oxidation process, reduce the dye on using peroxymonosulfate and Nano-Mn/CS, and determine the optimum conditions for reducing the dye in water. Catalytic synthesis process carried out by the hydrothermal process at temperature of 180o C for 18 hours in an autoclave to produce black carbon from D-glucose solution and then it will be impregnated with a variation of 3% and 5% Mn. Then it calcined with N2 at temperature of 500o C for 4 hours. The optimum condition for degradation of methylene blue (artificial wastes) 25 ppm carried out for 120 minutes with 0,2 gr/L catalysts Nano-Mn/CS and 4 gr/L oxone with efficiency of 91.07%.Keywords: AOPs, Methylene blue, Nano-Mn/CS, Peroxymonosulfate
Degradasi Zat Warna Tekstil (Rhodamin B) Dengan Teknologi Aop (Advanced Oxidation Process) Metode Fotokatalitik Menggunakan Katalis Nanokomposit Znfe2o4/SBE Affananda Taufik; Zultiniar Zultiniar; Edy Saputra
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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Dyestuffs which the result of the textile industry are non-biodegradable organic compounds, can cause environmental pollution especially the aquatic environment. One alternative to processing textile waste is to use the photocatalytic. Photocatalytic is a process of combination of catalyst and light. This study aims to synthesize ZnFe2O4 / SBE catalysts with microwave methods and characterization, study the influence of process conditions in degradation and determine the best process conditions in dye degradation. Nanocomposites from ZnFe2O4 / SBE have been successfully synthesized using the microwave method. The catalyst synthesis process is carried out by microwave for 20 minutes and followed by calcination at 500oC for 5 hours. Photocatalytic degradation lasted 120 minutes, stirring speed 350 rpm and volume of 250 ml solution. The variation of ZnFe2O4 / SBE concentration was 1.5 g / L, 1 g / L, 0.5 g / L and 0.25 g / L and the showed the maximum results from the best photocatalytic process obtained from variations in the catalyst concentration of 1.5 g / LKeywords: photocatalytic, rhodamine b, znfe2o4/sbe
Pirolisis Kulit Pinus Merkusii Menjadi Bio-Oil Menggunakan Katalis Mo/Lempung Cengar Inget Yester Yunanda; Syaiful Bahri; Edy Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Increasing population and industrial activities in Indonesia caused the consumption of petroleum increased while petroleum reserves continue to decline, so is very important of searching for alternative energy sources instead of petroleum. the biomass of pine bark considered as waste that pollutes the environment it can be used as source of fuel to produce bio-oil by means of pyrolysis using catalyst Mo/ Clay. The purpose of this research is to make bio-oil from pine bark using a catalyst Mo/clay by pyrolysis process, as well as test physical properties of the bio-oil, and to determine the effect of variation the carrier of the catalyst metal catalyst weight variations against of biomass. In this research pine of bark by the size of -60+80 mesh, 50 grams, 500 ml silinap and catalyst Mo / clay inserted into of pyrolysis reactor. This process conducted at a temperature 320oC and the stirring speed of 300 rpm operate for about 120 minutes by flowing nitrogen gas. For the optimum yields obtained at 1% catalyst Mo/clay as much as 9% of biomass that is equal to 68.46%. The test results physical properties obtained density of 0.78 g/ml, 1.77 cSt viscosity, acidity 25.79 mg NaOH /g sample and the flash point 54oC. Results of analysis compound chemical using GC-MS, obtained the dominant chemical components in the bio-oil is 2-Pentene 19.05%, 1-Pentene 9.88%, 8.72% Cyclohexane, Pentane 7.7% and Silane 3, 32%.Keywords: biomass, bio-oil, catalyst mo/clay, pine bark, pyrolysis
Pembuatan Biodiesel Dari Minyak Sawit Off-Grade Menggunakan CaO/Fly Ash Sebagai Katalis Pada Tahap Transesterifikasi Viqrie Wahyudi; Zuchra Helwani; Edy Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Indonesia needs the development of renewable energy. Biodiesel is one of renewable energy that formed as liquid fuel and has same property with petrodiesel. Biodiesel is able to be synthesis from off-grade palm oil using CaO/fly ash as catalyst in transesterification process. Employing fly ash as support in CaO has a good impact due to environmentally friendly, good economic potential and the utilization of Ca compound in fly ash. Biodiesel production in this study aims is to see the influence of reaction temperature, molar ratio of methanol and oil and concentration of CaO/fly ash towards biodiesel yield. The process was conducted through reaction of esterification and followed by transesterification reaction. Processing the data in this study was conducted by Response Surface Methodology (RSM) using Design Expert 7.0 program which is experimental design determined by Central Composite Design (CCD) which consists of three variables. The highest result of biodiesel yield was 59,34% at 70oC reaction temperature, molar ratio of methanol : oil 6 : 1 and catalyst concentration of CaO/fly ash 6%-w. Biodiesel characteristics like as density, kinematic viscosity, acid value and flash point has been appropriate by Indonesian biodiesel standard. The most significant process condition affecting the yield of biodiesel was catalyst concentration.Keywords: biodiesel, off-grade palm oil, catalyst, fly ash, transesterification
Preparasi Katalis CaO/Fly Ash Dan Penggunaannya Pada Reaksi Transesterifikasi Minyak Sawit Off-Grade Menjadi Biodiesel Robi Maulana; Zuchra Helwani; Edy Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

A palm fly ash supported calcium oxide (CaO) catalyst was prepared and used in transesterification from off-grade palm oil for biodiesel production. The catalyst synthesized by loading CaO of calcium nitrate tetrahydrate (Ca(NO3)2.4H2O) into fly ash through impregnation method. The optimum catalyst preparation conditions were determined by influence of calcination temperature and weight ratio of Ca(NO3)2.4H2O and fly ash. Catalyst with highest catalytic activity was achieved when calcined at 800 oC and proportion of Ca(NO3)2.4H2O to fly ash is 80:20. Under the conditions of oil : methanol ratio of 1:6, catalyst dosage of 6 wt% and temperature of 70 oC for 2 h, the biodiesel yield reaches to 71,77%. CaO, SiO2, Ca(OH)2 and Ca2SiO4 were found in the catalyst through X-ray diffraction (XRD) while the basic strength of the catalyst H_ > 9,3 was determined by using Hammett indicator phenolphthalein. Surface area of the developed catalyst is 24,342 m2/g through Brunauer-Emmett-Teller (BET). Characteristics of biodiesel such as density, kinematic viscosity, acid value, flash point has been matched with standard for biodiesel specification of Indonesia.Keywords: calcium oxyde, catalyst, fly ash, biodiesel, off-grade palm oil, impregnation,calcination, transesterification.
Pengaruh Waktu Dan Konsentrasi Polietilen Glikol Dalam Proses Presipitasi Silika Dari Palm Oil Mill Fly Ash (POMFA) Fitriani Fitriani; Edy Saputra; Panca Setia Utama
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Silica precipitation synthesis has been carried out from palm oil mill fly ash waste by using polyethylene glycol as dispersant. This study aims to determine the effect of time and concentration of polyethylene glycol (PEG) on yield and primary particle size of silica. The silica from POMFA was extracted with NaOH. The precipitation process was sodium silicate (Na2SiO3) added with PEG-400 then heated at 70°C, precipitated using CO2 impregnation of 300 ml / minute and mechanical fragmentation of 1000 RPM. The time was variation : 90, 120, 150 and 180 minutes and PEG concentrations was variation : 5%, 10%, 15% and 20%. The silica obtained is separated by filter paper and washed with warm distilled water and dry at 105°C until the weight is constant. The resulting silica was characterization XRD and XRF test to determine the composition and purity of silica. The best time obtained from the precipitation process was at 180 minutes with silica yield of 84.27%, and for the smallest diameter silica primary particle size was obtained with the use of 5% PEG is 19.11 nm.Keywords: Precipitation, Polyethylene Glycol, Silica, yield
Konversi Termal Kayu Ketapang (Terminalia Catappa) Menjadi Bio-Oil Dengan Teknologi Pirolisis Menggunakan Katalis Ni/Nza Arbhy Indera Ikhwansyah; Syaiful Bahri; Edy Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Availability of petroleum as a fuel that can not be updated further reduced by increasing the use of oil for human needs. For that we need to do a conversion innovation of energy that donot depend on fossil resources and can be renewable and have an output similar to that produced from fossil resources. One such innovation is the conversion of biomass derived from terminalia catappa wood to bio-oil. Bio-oil can be produced by pyrolysis of terminalia catappa wood with catalyst Ni/NZA. Objective this research to produce bio-oil from terminalia catappa wood as an alternative fuel, studying the effect of the weight ratio of the catalyst Ni/NZA to the biomass, studying the effect of metal impregnation Nickel (Ni) on Natural Zeolite deAluminated (NZA) and characterization of physical properties and chemical properties of bio-oil. Process pyrolysis was carried out at 320 0C, silinap 500 ml, 50 grams of biomass with + 100-200 mesh sieve size, variations in the catalyst Ni/NZA to thebiomass of 2%; 4% and 6% by weight and Ni metal variation on Natural Zeolite deAluminated (NZA) of 0%; 1%; 1,5% and 2%. The results of this study produce bio-oil yields the largest on the use of the catalyst Ni/NZA 4% by weight of the metal content of 2% by 68,22%. Characterization of physical properties of bio-oil obtained in the form of density 0,806 g/ml, 7,591 cSt viscosity, acidity 74,078 mg NaOH/g sample, flash point 45,971 0C andcalorific value 43,708 MJ/kg. While the characterization of the chemical properties of bio-oil using Gas Chromatography-Mass Spectroscopy (GCMS) obtained some dominant chemicalcomponents such as acetic acid and an area of 60,84%, 2-propanone with an area of 12,64%, 1,2-ethanediol with area of 8,60%, propionic acid and an area of 5,60% and methyl acetate and an area of 3,76%.Keywords: bio-oil, catalyst Ni/NZA, pyrolysis, terminalia catappa wood
Co-Authors Abdullah Syafi’i Ade Anggriawan Affananda Taufik Agustinus Lamhot Viraro Ahmad Fadli Ahmad Zaki Al Qarni Putra Aldi Okta Priyatna Amin Fitra Amir Awaluddin Andes Sagita Arbhy Indera Ikhwansyah Arif Kurnia Arosyidin Arosyidin Bahruddin Chairul Chairul Charismayani Charismayani David Andrio Delvi Yolanda Denny Elisabet Situmeang Desly Fadilla Simbolon Eka Putri Sriandriani Eka Trisnawati Ekadian Lestari Simatupang Ekky Wahyudi Enang Vovilya Eri Kaiyul Erlisa Yanuari Putri Evelyn Evelyn Farhiz Lagan Febrian Adhitya Fenny Lasma Hilde S Fitriani Fitriani Fitry Rahmah Ganis Kharisma Wiranti Genardus Oktavri Sijabat Gusti Ayu Nurjanah Hade Karimata Hafizah Heru Kristianto Hery Fiza Simarmata Ilok Dianggoni Imelda Dewi Agusti Inget Yester Yunanda Irdoni Irdoni Ismeddiyanto Ismeddiyanto Ismi Siska Rahmayani Jhon Armedi Pinem Jhon Fery Marihot Tua S Kartika Pratama Syafitri Khairat Khairat Komalasari Komalasari Lita Darmayanti Lora Mona Tambunan M Arief Riandy M. Wahyu Nugraha Magfirah Marihot Danield Vyendri Simatupang Miguel Felix Wijaya Mohd Fajri Amrullah Monita Olivia Moses O. Tadé Muhammad Rahman Mustapa Ardi Nani Agustina Nazily Haryati Niko Rizaldi Nissa Aqhilla Nova Dwi Safitir Novi Purnama Nuraina Siregar Nurhasanah Nurhasanah Nurlis Nurlis Nurul Afifah Peji Nopeles Rahman Fikri Redol Sianturi Reno Susanto Rio Akbar Rio Saputra Rizaldi Riski Irawan Rozanna Sri Irianty Shaobin Wang Shaobin Wang Sri Meilani Sri Ulina Beru Ginting Subangkit Julio Jaya SYAIFUL BAHRI Syaifullah Muhammad Syaifullah Muhammad Syarfi Daud Syarfi Syarfi Syelvia Putri Utami Tarsensius Wabady Happy Limbong Tejo Yulandi Tresia Monika Natalia Sinaga Trisuciati Syahwardini Utama, Panca Setia Viqrie Wahyudi Wahyu Muhammad Firdaus Wahyuni Zumara Wali Ara Widya Yoesepha Windy Nila Hakim Yelmida Azis Yofita Sandra, S.Pd., M.Pd., Zico Farlin, Dr. Budiwirman, M.Pd., Yudhi Salman Dwi Satya Yuliati Eka Putri Yunita Selonika Zuchra Helwani Zultiniar Zultiniar