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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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Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Social Sciences Other

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

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Adsorpsi Zat Warna Methylene Blue Dengan Menggunakan Abu Sawit Sebagai Adsorben Rizaldi Riski Irawan; Edy Saputra; David Andrio
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The industrial waste especially textile 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 anddoes not produce toxic products. The purpose of this study calculates theefficiency of decreasing the concentration of the colors contained in metyhleneblue dye and studying the adsorption capacity to variations in pH 2, 4, 6, and 8, adsorbent mass variation 1; 1,5; 2; and temperature variation 40º, 60º, and 80º. The maximum wavelength of the dye methylene blue 660 nm.The efficiency of 98,07 % decline in the highest concentration. Isothermcorresponding to methylene blue dye adsorption by spent bleaching earth isLangmuir isotherm with adsorption capacity to variations in pH of 4,592 mg/g, the adsorbent mass variation of 4,592 mg/g, the temperature variation of 3,565mg/g.Keywords: Adsorption, Methylene Blue, Fly Ash, Efficiency Decreased Concentration, Adsorption Capacity
Pirolisis Kayu Cemara (Casuarina Equisetifolia) Menjadi Bio-Oil Dengan Menggunakan Katalis NiMo/Lempung Hade Karimata; Syaiful Bahri; Edy Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The basic of national energy problem this era is consumtion of fossil energy that increase rapidly which not equal with source of fossil energy itself. Requirement for the source of energy which increasing and petroleum reserve as source of primary energy which continuing attenuate to become the main reason for the importance of searching for alternative energy sources instead of petroleum. Biomass specially pine wood only considered as waste that pollutes the environment, whereas the pine bark is biomass that can be processed to become alternative energy that is bio-oil. Bio-oil can be produced through pyrolisis process using catalyst NiMo/clay. This research aim to study the effect of the ratio of amount of catalyst to biomass which have variation of 3%, 6% and 9% w/w respectively and also the effect of NiMo metal consentrate on clay equal to 0%, 1%, 2% and 3% w /w respectively of the yield bio-oil produced. In this research, pine bark biomass as muches 50 grams with particle size of -100+200 mesh, silinap 500 ml, and catalyst NiMo/clay placed into pyrolisis reactor. Process of pyrolisis is conducted at temperature 320 oC and stirring speed of 300 rpm during 120 minute with stream of nitrogen gas (N2) as inert gas. The result obtained indicated that optimum yield obtained at 2% catalyst NiMo/clay as much as 9% of biomass that is equal to 51,102%. Physical properties test result obtained that is density (1,0429 gr/ml), viscosity (9,307 cSt), acid number (22,470 mg of NaOH/gr of sample) and flash point (53 oC) respectively. Result of chemical analysis with GC-MS, obtained the dominant chemical components in bio-oil are Cyclohexane, Cyclohexanone, Pentane, 1-Pentene, 2-Pentene.Keywords: Biomass, Bio-oil, Catalysts NiMo/clay, Pine Wood, Pyrolysis
Kajian Sifat Fisik Beton Dengan Additive Natrium Tripolyphosphate Pada Pengecoran Beton Dalam Air Gambut Wahyu Muhammad Firdaus; Ismeddiyanto Ismeddiyanto; Edy Saputra
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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Under-Water Concrete (UWC) is one of the types of high-performance concrete because the mixture and the casting process are different from concrete in general. UWC casting does not allow the compaction process to be carried out in the water so by adding Admixtures Washout Agent (AWA) into concrete, the concrete's viscosity is increased and its resistance to washout is enhanced. Sodium Tripolyphosphate (STPP) is one of the additives used in this research which has AWA properties so that when casting is carried out the concrete mixture is not mixed with peat water. The use of a Superplasticizer ensures enough concrete fluidity to spread readily in place without vibration and the use of stone ash functions as a filler for the pores in the concrete. UWC must achieve the right balance between its physical and mechanical properties which can affect its performance. UWC composition and physical properties determine concrete resistance to mass loss by washout of peat water. The research aims to study the effect of STPP additive in the composition of concrete mixtures in the peat water environment and analyze UWC physical properties, i.e., workability, Fourier Transform Infra-Red (FTIR), and porosity. The amount of STPP used in this study is 10% of cement's weight while the amount of stone ash used is 10% of the fine aggregate weight. Porosity and volume weight tests were carried out on six samples, and FT-IR testing was carried out on two samples of the concrete cylinders with volumes of 10 cm diameter and 20 cm height. The parameter considered in this study was comparing the physical properties of UWC of the curing time in peat water for 28 days and 56 days. The test results of the volume weight test on 28 and 56 curing days were 2262.271 kg/m3 and 2271.331 kg/m3. The porosity test value in concrete with 28 days was 20.847% decreased by 0.165% against the concrete age of 56 days, which equals to 20.024%. It can be concluded that there was no effect of peat water at 56 days on concrete's physical properties. Key words: Natrium Tripolyphosphate, Underwater Concrete, Admixture Washout Agent, Porosity
Perengkahan Katalitik Limbah Plastik Jenis Polypropylene (PP) Menjadi Bahan Bakar Minyak Menggunakan Katalis Zeolit A Aldi Okta Priyatna; Zultiniar Zultiniar; Edy Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Fly ash (FA) sample derived from Indonesia coal were used as raw material to synthesis A zeolite catalyst. The physicochemical properties of FA and A zeolite were characterized by atomic absorption spectroscopy (AAS) and X-ray diffraction (XRD). Catalytic activity of A zeolite wastested in catalytic cracking of polypropylene plastic waste to obtain biofuel. It was found that the highest yield of biofuel obtained using 1.5% A zeolite catalyst with a temperature of 450oC for 60 minutes is 76.82%. In addition, physical properties of biofuel which are density, caloric value wereobtained 0.78 g/mL and 10.26 cal/g, respectively. For chemical compound, it was found that the most dominant was gasoline and kerosene-diesel with fraction percent of 39.80 and 32.65,respectively.Keywords : A Zeolite, Catalytic Cracking, Fuel, Plastic, Polypropylene
Pengolahan Sampah Plastik Polypropylene (PP) Menjadi Bahan Bakar Minyak Dengan Metode Perengkahan Katalitik Menggunakan Katalis Zeolit X Ekky Wahyudi; Zultiniar Zultiniar; Edy Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The objective of this research was to convert a waste plastic into liquid fuel using zeolite X catalyst which it was synthesized from coal fly ash. In this study, 100 grams of polypropylene-type plastic were cracked in a batch reactor at 350 400 and 450o C for 60 minutes with various catalyst/plastic ratios was 0.5; 1.0;1.5 (wt%). Highest yield (%) was 76.09% that obtained at 450o C and catalyst/plastic ratio was 1.5%.Keywords : Cracking, Liquid fuel, Polypropylene, Waste plastic, Zeolite X 
Prarancangan Pabrik Metanol Proses Lurgi-Low Pressure Methanol Dengan Disain Alat Utama Destilasi Metanol Reno Susanto; Edy Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 1 Januari s/d Juni 2021
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Abstract

Domestic demand for methanol continues to increase, it was recorded that in 2018 Indonesia imported 701,291.5 tons of methanol, which was the highest import compared to previous years. Methanol is widely used globally for industrial applications including acetic acid, formaldehyde, MTBE, polyvinyl, polyester and DME industries. The main raw material used in the manufacture of methanol with the Low Lurgi Pressure process is natural gas. This factory is planned to operate for 330 days per year and work continuously for 24 hours / day with a capacity of 200,000 tons / year which will be established in the Pelintung Industrial area, Dumai, Riau. The remaining time during the operation process is used for shutdown, plant maintenance, maintenance and repair of equipment. The design of the main equipment in this plant is the Methanol Distillation which functions to separate methanol from water. The distillation tower is operated at a pressure of 1 Bar and a temperature of 95 ° C. The economic analysis in this plant design shows that the methanol plant with the lurgi-low pressure methanol process with the main methanol distillation tool design is feasible to be established with a BEP value of 41% and a Payback Period (PBP). ) 3,008 years factory. Keywords: Methanol, Economic Analysis, Natural Gas,
Sintesis Katalis Basa Na2SiO3/Fe3O4 Untuk Reaksi Transesterifikasi Waste Cooking Oil (WCO) Menjadi Biodiesel Tarsensius Wabady Happy Limbong; Edy Saputra; Khairat Khairat
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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This research aims to derive biodiesel from waste cooking oil (WCO) through transesterification using heterogeneous base catalyst Na2SiO3/Fe3O4. Catalyst Na2SiO3/Fe3O4 was synthesized from fly ash palm oil, sodium hydroxide, and iron powder. Tranesterification operated under reaction temperature is 60°C (±2) for 2 hours, with stirring 300 rpm. The highest yield of biodiesel is 95.83% under the transesterification methanol/WCO molar ratio 1:10, loading catalyst 3%-w. Density (40°C) of biodiesel is 886.85 kg/m3, kinematic viscosity (40°C) is 5.87 mm2/s, flash point is 204°C, acid value is 0.74 mg-KOH/g-biodiesel, and water content is 0.36%.Keyword: Biodiesel, Esterification, Catalyst, Transesterification, WCO.
Degradasi Zat Warna Artifisial Limbah Tekstil Dengan Advanced Oxidation Processes Menggunakan Katalis Nanopartikel Ce/Karbon Farhiz Lagan; Edy Saputra; Chairul Chairul
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
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One of the innovation textile waste processing is advance oxidation processes using peroxymonosulfate and catalyst nanoparticle Ce/carbon. This study was aimed to decrease content of artificial dye waste and determined the optimum conditions by using catalyst nanoparticle Ce/carbon. Catalyst synthesis was processed in hydrothermal autoclave at temperature 1800C for 18 hours, it convert D-glucose into black carbon, then impregnated with catalyst metal Ce by 3% and 5% by weight, after that catalyst calcined by N2 at temperature 5000C for 4 hours. Adsorption of artificial dye textile waste was held 25 ppm for 2 hours with concentration of catalyst 0,4 gr/L. The optimum adsorption of artificial dye textile waste with catalyst concentration 0,4 gr/L was is 12,921 with adsorption percentage reached 48,32%.Keyword: advanced oxidation processes, nanopartikel Ce/carbon, dye
Coating Scaffold Hidroksiapatit Dengan Kitosan Menggunakan Metode DIP - Coating Arosyidin Arosyidin; Ahmad Fadli; Edy Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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Bone implants are a tissue replacement technique using synthetic materials that are compatible with body tissues. Materials that can be used as a bone implant one of them is hydroxyapatite scaffold (HA). However, most of the HA scaffolds still have one of the strongest compression values. To increase the compressive strength of the scaffold it must be coated with other polymers. One of the polymers that is biodegradable with the body is chitosan. HA scaffold coating method using dip - coating method by dissolving chitosan powder into acetic acid concentration 0,50%; 0.75% and 1.00% (w / v). Next, scaffold HA in coating with chitosan solution for 30, 45, 60 minutes. After coating, HA scaffold is dried at room temperature for 24 hours. The increase of chitosan concentration 0,50% to 0,75% can decrease the porosity that is 78% to 76% and pore size from 28,25 μm become 22,88 μm. Furthermore, the longer coating time required 30 minutes and 60 minutes then the greater the compressive strength of HA scaffold produced is 1.43 MPa to 4.05 MPa. The optimum condition of the operation is 0.75% chitosan concentration and 60 minutes coating time with a compressive strength value of 4.05 MPa.Keywords: chitosan, coating, compressive strength, hydroxyapatite, scaffold
Upgrading Crude Bio-Oil (CBO) Dari Biomassa Menjadi Upgrade Bio-Oil (UBO) Dengan Katalis Ni/Lempung Subangkit Julio Jaya; Syaiful Bahri; Edy Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
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Objective of this research is to upgrade quality of bio-oil product from biomass of acacia. In this study several parameters were determined such us determine the effect of temperature reaction and ethanol : bio-oil ratio. And then compared physical and chemical characteristic of crude bio-oil (CBO) to upgraded bio-oil (UBO). In upgrading process, mixture of bio-oil and ethanol 36 gram, Ni/clay catalyst 0,3 gram, with variation of ethanol : bio-oil ratio are 5:1 (30 gram ethanol : 6 gram bio-oil), 3:1 (27:9) , 2:1 (24:12) and 1:1 (18:18) as well as temperature reaction variations are 60, 70 and 80 oC. The highest result on bio-oil yields 1:1 ratio and 60 oC was away 79,25% with calorific value increase from 3,784 into 18,339 MJ/kg. The dominant chemical components in crude bio-oil (CBO) such us aldehydes (58,91%), acids (13,43%) and esthers (12,26%) while in upgraded bio-oil (UBO) such us aldehydes (27,45%), phenols and furans (22,75%), alkanes and alkenes (19,48%), esthers (14,84%) and acids (1,53%) respectively. Keywords: bio-oil, upgrading bio-oil, crude bio-oil (CBO), upgraded bio-oil (UBO)
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