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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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Sintesis Biodiesel Dari Minyak Nyamplung (Calophyllum Inophyllum) Menggunakan Katalis Heterogen Nh4-Geopolimer Ganis Kharisma Wiranti; Edy Saputra; Zuchra Helwani
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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Abstract

Biodiesel is an alternative energy to replace fossil fuels that have the advantage of producing less gas emissions and higher combustion efficiency. Biodiesel is produced by transesterification reaction of vegetable oil. During the process of making biodiesel usually used NaOH or KOH as homogeneous catalyst which has the disadvantage of formation side products such as soaps and complexity of the separation of catalyst because having the same phase. Therefore, in this study biodiesel was synthesized from calophyllum inophyllum oil using geopolymer catalyst. Geopolymer was synthesized by mixing sodium silicate, metakaolin, sodium hydroxide, aquadest, and ammonium nitrate. The process variables are weight of oil 50 grams, stirring rate 400 rpm, reaction time 120 minutes, and temperature of 65 oC, with catalyst 3% (w/w) and mole ratio of methanol:oil 1:12. The yield of biodiesel 94,14% with density 881,17 kg/m3, kinematic viscosity 3,66 mm2/s, the acid number of 0,25 mg-KOH/g biodiesel, and the flash point 146°C respectively accordance with the standards of Indonesian biodiesel (SNI 7182:2015). Keywords: biodiesel, callophyllum inophyllum oil, geopolymer, transesterification, yield
Pengolahan Limbah Cair Sawit Dengan Metode Aop (Advanced Oxidation Process) Menggunakan Katalis LaMnO3 Perovskite Dan Oksidan Peroxymonosulfate M Arief Riandy; Edy Saputra; Jhon Armedi Pinem
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Processing of palm oil into Crude Palm Oil (CPO) will produce a large amount of liquid waste. To produce a ton of crude palm oil (CPO) produced 6 m3 of palm oil mill effluent. In this study, a process for removing organic compounds in wastewater using the advanced oxidation process by combining peroxymonosulfate (2KHS5.KHSO4.K2SO4) and a catalyst of LaMnO3 Perovskite. The combination will produce sulfate free radicals that capable degrading harmful organic compounds in effluent effectively. Nanocrystalline LaMnO3 was obtained by calcination at a temperature of 800 °C for 2 hours with an average crystal diameter of the highest peak of 29 nm in the shape of the Rhombohedral catalyst and the catalyst has qualified the catalyst with a nanoparticle structure. Several variations of oxidation process variables were performed to assess their effect on organic matter decline. Some fixed variables were oxidation reaction temperature 30 oC, reaction time 120 min, stirring speed 400 rpm, and concentration of peroxymonosulfate solution 2 g/L, pH of liquid waste is 8 and catalyst concentration 0,4 g / L. Conclution of this research is efficiency of 80.5 % for decreasing COD and efficiency by 15,6% for TOC reduction. This proved that the LaMnO3 catalyst is capable of activating peroxymonosulfate.Keywords : AOP, LaMnO3 Perovskite, Oxidation, Peroxymonosulfate
Sintesis Katalis Perovskite Komposit CeFeO3/SBE Dengan Metode Sol-Gel Untuk Proses Degradasi Fotokatalitik Pewarna Tekstil Methylene Blue Marihot Danield Vyendri Simatupang; Edy Saputra; Irdoni Irdoni
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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Perovskite catalyst composite of cerium ferrite (CeFeO3) have been successfully prepared via assembling mesoporous CeFeO3 on the surface of spent bleaching earth (SBE) with citricacid assisted sol-gel method. Physical properties were characterized by several techniques such as X-ray diffraction (XRD) and nitrogen gas adsorption-desorption (BET), absorbanceof oxidation samples were analysis using UV-Vis spectrophotometer measurement. The activity of CeFeO3/SBE catalyst was evaluated by the photocatalytic degradation ofmethylene blue (MB) in aqueous solutions under visible light irradiation. Effect the type of supports (SBE extraction and calcination resulted), catalyst concentrations (0.5-1.5 g/L), pH(5.0, 7.0, 9.0 and 11.0) and initial concentrations of MB (10-40 mg/L) were investigated in this research. Result indicating that CeFeO3/SBE extraction exhibited remarkablephotocatalytic degradation activity with the overall removal of MB up to 99.20% within 135 minutes at the conditions of 10 mg/L methylene blue, 1.0 g/L catalyst and pH 7 (neutral).Therefore, the CeFeO3/SBE is a very promising photocatalyst in future industrial application to treat effectively wastewater of dyes.Keywords: cerium ferrite, methylene blue, perovskite, photocatalytic, wastewater
Aplikasi Shrinking Core Model Pada Sintesis Hidroksiapatit Menggunakan Metode Hidrotermal Suhu Rendah Nuraina Siregar; Ahmad Fadli; Edy Saputra
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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Hydroxyapatite (HA) is a ceramic material can be used as bone and dental implants. Hydroxyapatite can be synthesized from calcium oxide (CaO). The purpose of this study was to determine the effect of reaction time and stirring rate on the characteristics of HA using a low temperature hydrothermal method and determine the kinetics model with the approach of shrinking core models. There are 3 models that are used; diffusion through the film layers, diffusion through the layer result (HA), and chemical reactions. The first procedure was weighing 36.9 of grams NH4H2PO4 and dissolved in 600 ml of aquadest are then added 30 of grams CaO at a temperature of 90 °C and reaction time with variation 5, 30, 60, 90, and 150 minutes. The mixture was stirred rate of 100, 200, 300 rpm until paste formed. The paste was dried in an oven at a temperature of 110oC for 15 hours and calcined at a temperature of 900oC for 1 hour. XRD diffraction results shows HA with pure content of 95% and SEM result shows morphology of HA was like agglomerate. The best kinetics model showed synthesis of HA is model 2 with equation:It was named “Diffusion Through the Layer Results (HA)” with the smallest percentage error of 4,3%.Keywords: CaO, hydroxyapatite, hydrothermal, model kinetics, shrinking core
Sintesis Biodiesel Dari Low Grade Crude Palm Oil (LGCPO) Menggunakan Katalis Sulfonated Carbon Nanospheres@Ferromagnetic (HSO3-CNSS@Fe3O4) Heru Kristianto; Edy Saputra; Zuchra Helwani
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Biodiesel is an alternative fuel that is environmentally friendly. Catalysts is commonly used in the production of biodiesel is strong base catalysts which is difficult to separate from the product because it has the same phase as the reactant. Therefore, it is necessary to develop catalyst technology that is more economical, easy to implement, and environmentally friendly, such as sulfonated carbon nanospheres@ferromagnetic catalyst. The catalyst was synthesized by reacting granulated sugar, FeCl2, FeCl3, and the addition of ammonia through a hydrothermal carbonization process for further sulfonated using 98% concentrated sulfuric acid. The catalyst produced has a nanospherical shape with a size of 0.08-0.16 μm. The catalyst is then used in the transesterification reaction to produce biodiesel. Optimum condition is reached at process variables LGCPO weight of 50 grams, stirring speed of 400 rpm, reaction time of 120 minutes, and temperature of 60 oC, with catalyst concentration of 1.5% (w/w) and molar ratio methanol:oil 1:9. The yield of biodiesel is 96.62% with density 878.67 kg/m3, viscosity 3.28 mm2/s, the acid number of 0.29 mg-KOH/g biodiesel and the flash point 127°C comply with the SNI standards (SNI 7182: 2015). Keywords: Biodiesel, carbon nanosphere, LGCPO, transesterification, yield
Modifikasi Kulit Telur Ayam Dan Serbuk Besi Sebagai Katalis untuk Reaksi Transesterifikasi Minyak Sawit Off Grade Menjadi Biodiesel Delvi Yolanda; Zuchra Helwani; Edy Saputra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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Abstract

Eggshells modificated of solid base catalyst through calcination, hydration, dehydration methods with iron powder through impregnation method to load calcium oxide with eggshells as precursor. Effect of dehydration temperature and time on the catalytic performance were studied. The catalyst with the highest activity is obtained when the dehydration temperature of 600 °C and the dehydration time of 2 hours under transesterification reaction conditions of a molar ratio of methanol/oil 10:1, catalyst dosage of 1% by weight, temperature of 70 °C for 2 hours with yield biodiesel results reached 90%.Keywords: biodiesel, calcination, calcium oxide, catalysts, dehydration, hydration, impregnation, iron powder, transesterification.
Pembuatan Biodiesel Dari Minyak Nyamplung Dengan Menggunakan Katalis Basa Na2SiO3/Fe3O4 Nissa Aqhilla; Edy Saputra; Ahmad Fadli
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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Abstract

Biodiesel is an alternative energy to replace fossil fuels. It can be made by transesterification process of vegetable oils. During the process of making biodiesel usually was used NaOH or KOH as homogeneous catalyst which has the disadvantage the formation of side products such as soaps and complexity of the separation of catalyst. Therefore, in this study Na2SiO3/Fe3O4 catalyst is used. The independent variables of this research are mol ratio of CIO and methanol 1:6, 1:8, 1:10 and loading catalyst Na2SiO3/Fe3O4 1%, 2%, 3%. Density (40°C) of biodiesel is 876,18 kg/m3, kinematic viscosity (40°C) is 4,63 cSt, flash point is 107°C, and acid value is 0,49 mg-KOH/g-biodiesel.Keywords: Biodiesel, Catalyst, CIO, Transesterification
Aplikasi Katalis α-MnO2-400 Yang Dikalsinasi Pada Temperatur 400oc Untuk Degradasi Kandungan Organik Limbah Cair Industri Pulp Dan Kertas Peji Nopeles; Edy Saputra; Bahruddin Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The pulp and paper industry is a water-intensive industry, and number third in the world and also a significant contributor to pollutant discharge to the environment. It is know that the low COD/BOD ratio obtained from pulp industry wastewater is an average of 0.3 while the ideal of biodegradability value is in the range above 0.5. Thus, there are alternative treatments that can degrade hazardous compounds in wastewater that are slow to degrade through the oxidation process, known as the Advanced Oxidation Process (AOP). AOP is based on active radicals which are produced as oxidizing agents to mineralize the complex chemical substance in the wastewater. One of the active radicals, known sulfate radicals (SO4*), has a high oxidation potential of 2.5 – 3.1 V. Several studies showed that radical sulfates can be produced by catalytic oxodation process, such as combination of Peroxymonosulfate with homogeneous metal ion catalyst (Fe2+, Mn2+, Ni 2+, Co2+, Cd2+, Cu2+, Ag+1, Cr3+, Zn2+). In this study, AOP method peroxymonosulfate which was activated with the catalyst α-MnO2-400 were used to treat organic content in wastewater of pulp and paper industry. The α-MnO2-400 catalyst was produced from 1:3 molar potassium permanganate (KMnO4) and maleic acid that calcined at 400oC. This catalyst was characterized by XRD, BET and FESEM. From XRD analysis obtained the peak aligned with JCPDS Standard. From the BET analysis obtained surface area is 49.17 m2/g, pore size 6.4 nm and pore total 0,16 cm3/g. From FESEM analysis obtained crystalit structured with average length 21 nm. The best degradation of COD and TOC concentration obtained at temperature 45oC, at retention time 240 minutes, with peroxymonosulfate concentration 2,0 g/L and catalyst concentration 0,4 g/L (73% and 77%). Key word: AOP, Catalyst, COD, Peroxymonosulfate, Waste water
Pembuatan Biodiesel Dari Minyak Nyamplung (Calophyllum Inophyllum) Menggunakan Katalis Geopolimer: Pengaruh Temperatur Dan Rasio Mol Minyak:Metanol Mohd Fajri Amrullah; Edy Saputra; Zuchra Helwani
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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Abstract

Biodiesel is an alternative energy to replace fossil fuels. It can be made by transesterification process of vegetable oils. Process of making biodiesel commonly use NaOH or KOH as homogeneous catalyst which has the disadvantage the formation of by products such as soaps and the complexity of the separation of catalyst. Therefore, in this study biodiesel was synthesized from calophyllum inophyllum oil by using geopolymer catalyst. Geopolymer was synthesized by mixing sodium silicate, metakaolin, NaOH, and water. Several variations of the process variables were done to assess its influence on yield of biodiesel. The variables were used consist of a dependent variables and independent variables. The dependent variables were calophyllum inophyllum oil weight of 50 grams, 3%-wt of catalyst concentration, reaction time of 120 minutes, and stirring speed of 400 rpm, while the independent variables which variation molar ratio of oil:methanol 1:3, 1:6, 1:9, 1:12 and variations of temperature 55, 60, 65 oC. Physical characterization were done including density 873 kg/m3, kinematic viscosity 4.46 mm2/s, acid number 0.49 mg-KOH/g biodiesel and flash point 140°C respectively accordance with the standards of Indonesian biodiesel (SNI 7182:2015).Keywords: biodiesel, catalyst, calophyllum inophyllum oil, geopolymer, yield
Penyisihan Kadar Logam Fe Dan Mn Pada Air Gambut Dengan Pemanfaatan Geopolimer Dari Kaolin Sebagai Adsorben Ade Anggriawan; Edy Saputra; Monita Olivia
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

Geopolymer is kind of shyntetic compound that made by syntesizing alumino and silicate, known has similarity with zeolit. In this study eleborate that geopolymer which made by kaolin used for adsorben to remove ion Ferrum and Mangan in peat water by using adsorption process. The influence of ratio alkaline activator to kaolin and adsorbent dosage examined at constant particle size and contact time to analyzed the eficiency of removal Ferum and Mangan by using batch system. The adsorption process of geopolymer by using batch system made of kaolin as an adsorption prove that geopolymer which made by kaolin have excelence ability to removing Ferum and Mangan from peat water.Keyword: Peat water, Geopolymer, Kaolin, Ratio, Ferrum, Mangan
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