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All Journal Jurnal Penelitian dan Pengembangan Pendidikan Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Jurnal Teknik ALGORITMA : Journal of Mathematics Education Jurnal Ilmiah Pendidikan Matematika Al Qalasadi Jurnal Serunai Bahasa Indonesia Unri Conference Series: Community Engagement Asimetris: Pendidikan Matematika dan Sains Journal of Bioprocess Chemical and Environmental Engineering Science International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS) As-Sidanah : Jurnal Pengabdian Masyarakat Jurnal Transformasi Administrasi Catimore: Jurnal Pengabdian Kepada Masyarakat Jumper : Journal of Educational Multidisciplinary Research International Conference on Health Science, Green Economics, Educational Review and Technology (IHERT) Jurnal Teknologi & Rekayasa Sipil Jurnal Infinity JURNAL REKAYASA KIMIA & LINGKUNGAN
Edy Saputra
STAIN Teungku Dirundeng Meulaboh
Religion 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 Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Pengaruh Molaritas Dan Rasio Aktivator Pada Geopolimer Untuk Pengolahan Air Gambut Kartika Pratama Syafitri; Edy Saputra; Lita Darmayanti
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

Peat water is the brownish red water that come from the surface of peat soil with high organic content, pH 2-5, and low harness level. Geopolymer is the silicate alumina inorganic compound which synthesized by some materials such as fly ash, kaolin and rice husk ash. The chemical composition like zeolite, that structurally composed from macromolecules chain which consist of silicon atomics, aluminium, and oxygen. This research make use of geopolymer from kaolin as the adsorbent which reduced color, organic content, and increasing pH of peat water with Permenkes No.416/MENKES/PER/IX/1990. In the research make use of molarity variation NaOH 10, 12, 14, 16 M and activator ratio 0,4, 0,5, 0,6 at geopolymer to treatment peat water. The result of this research is treatment peat water with geopolymer 16 M – 0,6 that capable to make pH (become) 6,8, color (integrity) 0 Pt-Co and organic content 3,16 mg/L KMnO4.Keyword: Peat water, geopolymer, molarity, activator ratio, color, organic content, pH
Pemanfaatan Na2O/Fe3O4 Sebagai Katalis Pada Tahap Tansesterfikasi Sawit Off Grade Menjadi Biodiesel Trisuciati Syahwardini; Zuchra Helwani; 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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Off-grade palm oil is a source of vegetable oils that utilization is not maximized yet. It has ALB > 2% so must be process with esterification and transesterification. In general, biodiesel is produced through transesterification reactions using homogeneous catalysts. Homogeneous catalysts can be replaced with heterogeneous catalysts with easily separated and environmentally friendly. Waste iron powder can be used as catalyst support and provide metallic properties for separate product easily. This study aims to create a catalyst that has metallic properties and to study the transesterification reaction process conditions at transesterification process. Esterification process were reacted at 60 °C with time reaction 1 hour, molar ratio of methanol : oil of 12:1 and 1% H2SO4-w catalyst. The esterification reaction can reduce levels of ALB from 11.95% to 1.44%. Transesterification conducted with the molar ratio of methanol : oil in a row are 6:1, 8:1, and 10:1, the amount of catalyst modification 1% -w, 2%-w, 3% -w, a reaction temperature of 50 °C, 60 °C , 70 °C, and the reaction time 3 hours. Processing data using Response Surface Methodology (RSM), while the number of experiment are determined by Central Composite Design (CCD). Yield was resulted in ranging from 22.34% to 59.92%. The highest yield obtained at 60 °C with molar ratio of methanol : oil is 8:1 and the amount of catalyst Na2O/Fe3O4 2%-w.Keywords : biodiesel, heterogeneous catalyst, off-grade palm, rsm, transesterification.
Pembuatan Silika High Grade Dari Fly Ash Sawit Dengan Proses Ekstraksi Dan Cation Exchange Ahmad Zaki; 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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One alternative raw materials manufacture of high grade silica is using palm oil mill fly ash. This research aimed to study the effect of temperatureprocess, time and the ratio mass of zeolite and obtain optimum conditions cation exchange process (Fe) in a solution of sodium silicate with raw material palm oil mill fly ash. Palm oil mill fly ash is heated using oven at 105° C for 24 hours. Then fly ash reacted with 1,4N NaOH solution at 105° C for 50 minutes. Then obtained sodium silicate solution is reacted with Na-zeolite. The results of the optimization then precipitated using 10% H2SO4 and derived solidsilica. XRF analysis results showed solid silica has a purity of 96.129%.Keyword:Precipitation, Zeolite
Biodiesel Dari Minyak Buta-Buta (Hura Crepitans Linn) Dengan Menggunakan Katalis Ni/Lempung Ekadian Lestari Simatupang; Syaiful Bahri; 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

Biodiesel is one of the alternative fuels as a substitute for fossil fuels synthesised from the transesterification reaction. The process of making biodiesel which using a homogeneous catalyst is costly for product separation process. Thus use of heterogeneous catalysts such as Ni/Clay catalyst was developed. This study aims to produce biodiesel from Hura crepitans Linn oil to determine best conditions of making biodiesel, determine the physical andchemical properties of biodiesel produced and studied the effect of the amount of Ni metal that has been impregnated on clay. In this process, the amount of oil use is 50 grams, 90 minute reaction time and concentration of catalyst 0.5%-b. Variations in reactants mole ratio oil : methanol 1 : 6, 1 : 9, 1 : 12, varying the amount of Ni metal 0%-b, 1%-b, 2%-b, 3%-b impregnated into the clay. The highest result biodiesel produced from Hura crepitans Linn oilwas 93.70% having mole ratio of oil : methanol 1 : 9 with Ni catalyst (3%). Physical properties obtained at biodiesl result density 884 kg / m3, kinematic viscosity 4.46 mm2/s,acid number 0.49 mg KOH/g sample and flash point is 185°C .Keywords : Biodiesel, Catalyst Ni / clay, Hura crepitans Linn oil
Pembuatan Membran Silika Dari Bahan Alam Untuk Pemisahan Limbah Rhodamin B Nani Agustina; Jhon Armedi Pinem; Edy Saputra
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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Abstract

The membrane is a selective and semi permeable layer between two phases, namely the feed phase and the permeate phase. Membrane synthesis uses silica for the treatment of Rhodamin B waste with variations of PVA 8, 10, 12, 14 ml with an operating pressure of 2, 3, 4 bar. This research produced a porous membrane. Characteristic tests conducted include SEM, flux and reflection analysis. based on membrane flux test and reflection obtained an effective membrane performance that is on the membrane composition of PVA 14 ml with operating flux at a pressure of 2, 3, 4 bars respectively is 20.68 L / m2. Based on the characteristics of permeability, selectivity, and pore membrane statistics show that the silica membrane is an ultrafiltration membrane. Keywords: Silica, membrane, Rhodamin B waste, ultrafiltration
Sintesis Kulit Telur Ayam/Serbuk Besi Menjadi Katalis Cao/Serbuk Besi Untuk Reaksi Transesterifikasi Minyak Sawit Off Grade Menjadi Biodiesel Gusti Ayu Nurjanah; Zuchra Helwani; Edy Saputra
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

Heterogeneous solid base catalyst by modificated Eggshells through calcination, hydration, dehydration methods with iron powder through impregnation method to load calcium oxide with eggshells as precursor. The catalyst with the highest activity is obtained when the calcination temperature of 900°C and the calcination 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 91,72%.Keyword: biodiesel, calcination, calcium oxide, catalysts, iron powder.
Kuat Tekan Mortar Geopolimer Pofa Yang Dirawat Pada Suhu Ruang Lora Mona Tambunan; Monita Olivia; 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

This research focus on study of palm oil fuel ash based geopolymer mortar which use room temperature curing condition. Amount of Portland Cement (OPC) was added to accelerate setting time of geopolymer paste. The main ingredient to make geopolymer mix use palm oil fuel ash (POFA) which contain Silica (Si) and Alumina (Al) from Dumai, Riau province activated by alkaline activator solution. Alkaline activator solution was combined by NaOH 16M and liquid of natrium silikat (Na2SiO3 ) with SiO2 to Na2O mass ratio 2,3. Alkaline activator content as 100% of total binder. Rest period of geopolymer mortar for 5 days. The geopolymer paste was cast in cube mould 50x50x50 mm. The research show the compressive strength of geopolymer mortar which addition OPC variation. This study aims that compressive strength were improved simultanesly mount of addition OPC. Keywords: geopolymer, palm oil fuel ash, room temperature, addition OPC
Biodiesel Dari Biji Buta-Buta (Hura Crepitans Linn) Dengan Katalis Ni/Nza Tresia Monika Natalia Sinaga; Syaiful Bahri; 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

Indonesia is one of the oil producing country in the world but is still importing fuel oil (BBM) for meet the fuel needs in various sectors. Therefore, an alternative is needed to meet these needs. Among them is to produce biodiesel from vegetable oil feedstock. One type of vegetable oil that can be used as a raw material is Hura crepitans Linn. This research is aimed to produce biodiesel from Hura crepitans Linn seed oil, to study effect of the metal content in the catalyst of Ni/NZA to biodiesel produced and to determine the best conditions of process of biodiesel and then characteristics of biodiesel produced. The transesterification process was done at a temperature of 60oC, the weight of oil 50 grams, the catalyst 1%-weight of oil, reaction time variation of 1, 1.5 and 2 hour and mole ratio of oil to methanol 1: 6, 1: 9, 1:12 and catalyst NZA of 0% and 2%. The highest biodiesel result gives at experiment of 2% metal content oil to methanol mole ratio of 1: 9, for 1.5 hours i.e. 85.8%. Characterization of physical properties of biodiesel obtained, density of 0.885 gram/ml, 4.29 cSt kinematic viscosity, acid number 0.49 mg KOH / g sample, and the flash point 180oC respectively. Chemical components of biodiesel analysed with Gas Chromatography-Mass Spectroscopy (GC-MS) produce methyl linolelaidate 72,64%, methyl Oleic 19,08%, methyl stearate 2,2%, methyl palmitate 2,11% and methyl octadec-11-enoic 0,66% respectively. Keywords : biodiesel, catalyst Ni/NZA, Hura crepitans Linn, transesterification
Pembuatan Dan Karakterisasi Membran Selulosa Asetat Dari Serat Daun Nanas Untuk Pengolahan Limbah Pulp And Paper Eka Putri Sriandriani; Jhon Armedi Pinem; Edy Saputra
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 membrane is a selective and semipermeable thin layer between two phases, namely the feed phase and permeate phase. One of the ingredients for making membranes is cellulose acetate from pineapple leaf waste. The purpose of this research is to make cellulose acetate membrane using cellulose from pineapple leaf waste as the main raw material with composition variation and pressure variations. In this research uses variations in polymer cellulose acetate are 15% (w/w), 20% (w/w) and 25% (w/w) and pressure variations are 1 bar, 2 bar and 3 bar. The stages of making membranes are taking pineapple leaf fibers, making cellulose acetate, making cellulose acetate membrane and testing the mechanical properties of the membrane. At optimum condition, flux value was obtained 22.26 L/m2.h at 3 bar with cellulose acetate composition 25% w/w. While the highest rejection value was obtained at a membrane composition of 25% w / w with COD 81.12%, BOD 76.03% and TSS 77.91% at 3 bar pressure. If more cellulose acetate composition were used, the flux value will be decrease and the rejection will be increase. If pressure increase, rejection and flux value will get higher. Keywords : cellulose acetate, flux, membrane, rejection.
Advanced Oxidation Process (AOP): Degradasi Zat Warna Rhodamin B Dengan Metode Fotokatalitik Menggunakan Katalis Covalent Triazine Framework (CTF) Andes Sagita; Edy Saputra; Panca Setia Utama
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

BPS recorded the export value of national textile products reached US$ 13.22 billion in 2018 and increased to US$ 15.73 in 2019. The problem that later arises was the textile waste generated by those industries. One of the methods for treating textile dye waste is the photocatalytic. The catalyst used in this study is the Covalent Triazine Framework (CTF), while the radiation comes from a 250 watt mercury lamp. The dye waste used is rhodamine B. The CTF catalyst synthesis was carried out by the ionothermal method at a temperature of 450oC and argon atmosphere for 18 hours. 1,4-dicyanobenzene used as monomer and ZnCl2 as molten salt, the two ingredients are mixed in a furnace cup with a weight ratio of 1: 8 (monomer: molten salt). The best photocatalytic results were shown by variations in the concentration of 1 g/l catalyst and 10 ppm of rhodamine B with a degradation efficiency of 94.790%.   Keywords: covalent triazine framework, ionothermal, textile, photocatalytic
Co-Authors Ahmad Fadli Ahmad Zaki Andes Sagita Bahri, Saiful bettri yustinaningrum, bettri Charismayani Charismayani Desly Fadilla Simbolon Edward Hs Ega Gradini Eka Putri Sriandriani Ekadian Lestari Simatupang Ekky Wahyudi Enang Vovilya Erlisa Yanuari Putri Evelyn Evelyn Fitry Rahmah Gusti Ayu Nurjanah Hafizah Harnedi, Joni Hasrul Hasrul, Hasrul Imanuel Tumanggor Ismeddyanto, Ismeddiyanto Jhon Armedi Pinem Jhon Armedi Pinem Kartika Pratama Syafitri Khairat, Khairat Kiki Farida Ferine Komalasari Komalasari Lita Darmayanti Lora Mona Tambunan M. Isa Indrawan Magfirah Marlina Marlina Maulizar, Hera Miguel Felix Wijaya Monita Olivia Muhdarina Muhdarina Nani Agustina Nazily Haryati Noviani, Julia Nurhayati Nurhayati Nurlis Nurlis Nurul Hikmah Putri, Erlisa Yanuari Riandy, M Arief Rianti Ratna Dewi Rio Akbar Rio Saputra Saiful Bahri Saputra, Rio Sarah Sarmento, Amândio de Araújo Sihotang, Fernando Sitanggang, Ronal Rius Sri Ulina Beru Ginting Sutrisno, Sutrisno Suwarni Syafi’i, Abdullah SYAIFUL BAHRI Syamsu Herman Syarfi Syarfi Syelvia Putri Utami Tresia Monika Natalia Sinaga Trisuciati Syahwardini Tukiyo Tumanggor, Imanuel Utama, Panca Setia Utami, Rizka Wahyudi, Ekky Wahyuni Zumara Wali Ara Yelmida Azis Zuchra Helwani Zuchra Helwani, Zuchra Zultiniar Zultiniar Zultiniar, Zultiniar