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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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Pembuatan Biodiesel Dari Minyak Nyamplung Dengan Katalis Na2SiO3/Serbuk Besi : Pengaruh Kecepatan Pengadukan Dan Recycle Katalis Febrian Adhitya; 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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This research purpose to synthesis biodiesel from calophyllum inophyllum oil by transesterification reaction using heterogeneous base catalyst Na2SiO3/iron powder. Catalyst was synthesized from fly ash palm oil which supported by iron powder. Synthesis biodiesel on transesterification reaction with the independent variables of this research variations is agitation rate of 200 rpm, 300 rpm and 400 rpm and catalyst can be recycledas much as 3 times for every variation of agitation rate. These conditions aim to determine its effect on the yield of biodiesel produced. Condition operation the transesterification are mol ratio of oil : methanol 1 : 9 and loading catalyst 3%-w of oil feedstock with temperature reaction 60°C during 2 hours reaction time. Physical characterization were done such as density 867 kg/m3, kinematic viscosity 3,96 mm2/s, acid number 0,48 mg-KOH/g biodiesel and flash point 147°C respectively accordance with the Indonesian National Standard. (SNI 7182:2015).Keyword: Agitation Rate, Biodiesel, Esterification, Calophyllum inophyllum oil, Catalyst, Recyle and Transesterification.
Pengolahan Limbah Cair Industri Karet Dengan Kombinasi Proses Pretreatment Dan Membran Ultrafiltrasi Windy Nila Hakim; Jhon Armedi Pinem; 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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The development of new industries can increase prosperity for the people, but had a negative impact on the environment. Industries that produce waste one of them is the rubber industry. Rubber industries produce wastewater containing organic compounds are relatively high. Rubber industrial wastewater treatment needs to be done first in order to tackle pollution. This study was conducted to test the effectiveness and influence of pretreatment process and ultrafiltration membranes in wastewater treatment process of the rubber industry. Wastewater rubber which has been neutralized, in coagulation using coagulant aluminum sulfate (150 mg/l; 200 mg/l; 250 mg/l) with stirring speed of 200 rpm for 5 minutes and 60 rpm for 15 minutes, then allowed to stand for 30 minutes. Waste water sample is filtered then ultrafiltration with variations in pumping pressure (1 bar, 1,5 bar, 2 bar). The results showed the coagulation process is effective at a dose of coagulant Aluminum Sulfate 250 mg/l is 58,71% of BOD5, 59,04% of COD, 35,71% of TSS and 25% of ammonia. The percentage of waste generated rejection increases with increasing pumping pressure of 1 bar to 2 bar. The rejection percentage is 67,30% of BOD5, 67,19% of COD, 88,15% of TSS and 35,71% of ammonia at 2 bar.Key Words: Aluminium sulfate, coagulation, wastewater rubber, membranes, pressure, ultrafiltration
Pembuatan Koagulan Cair Dari Lempung Gambut Untuk Pejernihan Air Yunita Selonika; Jhon Armedi Pinem; 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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Clay is one of the abundant natural resources and have not been used optimally. Value for clays can be improved further. Utilization of clay as a source of liquid coagulant is one way of increasing value of the clay. The aim of research was to make liquid coagulant from clay peat with extraction process and determine the percentation of extraction. The powdered clay was calcined at a temperature of 750oC for 1 hour extracted using sulfuric acid for 60, 90 and 120 minutes at a temperature of 95°C. The slurry was filtered to obtain the filtrate which was a liquid coagulant. Liquid coagulant extracted during the process of 120 minutes has the highest of percent aluminum and iron extraction.Key words : coagulant, coagulation, extraction, peat clay
Durabilitas Mortar Geopolimer Campuran Abu Terbang (FA) Dan Abu Sawit(POFA) Di Lingkungan Gambut Yudhi Salman Dwi Satya; Monita Olivia; 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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This research study presents the durability of OPC and geopolymer mortars prepared from the combination of palm oil fuel ash (POFA) and fuel ash (FA) as cement replacement and elements of Si and Al was activated by alkaline solution. Alkaline solution was prepared by combining sodium silicate and sodium hydroxide 14 M. The optimum mix proportions of geopolymer mortars with FA:POFA mass ratio of 90:10 was used together with alkaline solution. The ratio of sodium silicate solution to sodium hydroxide solution by mass was 2.5:1. The mass ratio of sand to blended ashes was 2,75:1. Test specimens 5×5×5 cm cube were prepared and cured at room temperature (28ºC) for 3 days and heat-cured at 110ºC for 24 hours, later cured back at room temperature for 7 days. respectively. Then specimens were immersed in distilled water and peat water. This research resulted in changes of compressive strength the OPC and geopolymer mortars, after immersed in distilled water for 28 days mortar OPC was increasing the compressive strength while geopolymer mortar was decreasing of compressive strength. Furthermore, in the immersed peat water, OPC and geopolymer mortars tend to decreased the compressive strength. The percentage porosity value of both types of mortar were immersed in peat water has increased compared to the immersed in distilled water. The test results revealed that durability of geopolymer mortar in peatlands not as good as OPC mortar due to many factors that lead to a decrease the quality of geopolymer mortar.Keywords : Durability, mortar geopolymer, fuel ash, palm oil fuel ash, peat water
Sintesis Biodiesel Dari Minyak Biji Nyamplung (Calophyllum Inophyllum) Menggunakan Katalis Geopolimer Dari Abu Sekam Padi Dan Kaolin M. Wahyu Nugraha; 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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Biodiesel is an alternative diesel fuel produced from vegetable oil triglycerides transesterification reaction. Besides being derived from renewable sources, biodiesel generate emissions better than diesel. Utilization of vegetable oils such as potential as Calophyllum inophyllum seed oil as raw material biodiesel because it is non-edible. It is necessary to develop catalyst technology in order to get the production process becomes more economical, applicable, and environmentally friendly, one of the catalysts is rice husk ash (RHA) geopolymer. The geopolymer synthesized by reacting sodium silicate, metakaolin, NaOH, and water. Characterized geopolymer produced include alkalinity, surface morphology, elemental composition, and surface area. The variation of process variables conducted to assess the effect on the yield of biodiesel. Independent variable weight of oil 50 grams, mole ratio methanol:oil 9: 1, reaction time 120 minutes, and temperature of 65 °C, with the dependent variables %w/w catalyst 0.79%-2.2% and stirring rate 117-682 rpm. The result of physical characterization density 866 kg /m3, viscosity 4.13 mm2/s, acid number of 0.42 mg-KOH/g biodiesel and flash point 140 °C meet the SNI standards (SNI 7182: 2015).Keywords: Biodiesel, Calophyllum inophyllum Oil, Catalyst, Geopolymer, Rice Husk Ash
Pembuatan Biodiesel Dari Minyak Kapuk Menggunakan Katalis Lempung : Studi Regenerasi Katalis Dalam Proses Produksi Genardus Oktavri Sijabat; 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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Petroleum oil still serves as a primary source of energy and national fuel. Oil reserves in Indonesia are depleting so substitution of fuel that derived from petroleum have to be sought. Recent years, a lot of research has done, whose purpose to find a fuel that can be an alternative source one of that is biodiesel. Raw material for making biodiesel can be from animal fat or vegetable oil. One type of vegetable oil that can be used as a raw material source of energy is kapok wood. This research is aimed to make biodiesel from cotton oil, to study factors which influences production, such as acid-based activated catalyst, the regeneration catalyst, and to determine the physical and chemical properties of biodiesel. The transesterification process was done on a mole ratio of oil: methanol 1: 9, oil mass 50 grams, the weight of the catalyst 1%-wt, temperature of 60°C during 90 minutes, the activation of clay catalysts are in acids and bases, and then recycle and regeneration of catalyst. This study given the biodiesel result having the largest yield of alkaline activation of the catalyst as much as 93.1%. Characterization of physical properties of biodiesel have a density 871 kg/m3, kinematic viscosity 3.5 mm2/s, acid number 0.37 mg KOH/g sample, and the flash point 210oC respectively. The catalyst regeneration cannot restore 100% reactivity of catalyst.Keywords: biodiesel, clay, recycle, regeneration, transesterification
Pemanfaatan Geopolimer Dari Kaolin Sebagai Adsorben Untuk Mengolah Air Gambut Imelda Dewi Agusti; 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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Basicly peat water is belong to surface water which is found in the wet land, like Riau Province. The characteristic of peat water are high color intensites (yellow or brown red), high organic content and low pH values about 2-5. For use as water source for domestic purposes, it was a process to change peat water toward clean water. One of the process was adsorption way. In this research is required by kaolin based geopolymers as adsorbent.The variable that used in this research is the mass of the adsorbent (1; 1,5; 2; and 2,5 gram, and stirring (time between 30,60 and 90 seconds) then tested of organic content. The best result from this research is that the adsorbent mass of 1 gram and the stirring time of 30s while adsorbent can increase from 51,192 mg/l to 0,63 mg/l on organics content. The results of this research indicated that the peat water treatment in accordance with the Decree of the Minister of the Health No. 416 Year 1990 and could be use kaolin based geopolymer as an alternative to peat water treatment .Keyword : Kaolin, Geopolymer, Adsorption, Peat Water
Degradasi Zat Warna Methylene Blue Dengan Metode Fotofenton Menggunakan Katalis nano-Fe0@CS Rahman Fikri; Panca Setia Utama; 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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In this study, nano-Fe0@CS were synthesized by hydrothermal method. Studied Methylene Blue (MB) degradation process and find the best composition of the degradation process. Catalytic performance of nano-Fe0@CS was tested in Phenton process for MB degradation in aqueous solution with H2O2 3%, and MB concentration variant. The best process conditions was observed by 99.99% removal of 30 ppm MB within 90 min with added 0.3 g/l nano-Fe0@CS and 2 ml H2O2 3% in 250 ml solution.Keywords: Degradation, Methylene Blue, nano-Fe0@CS, Phenton Process
Pembuatan Biodiesel Dari Minyak Biji Kapuk (Ceiba Pentandra) Dengan Katalis Lempung Teraktivasi, Pengaruh Rasio Molar : Metanol Nova Dwi Safitir; 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 renewable alternative fuel that can be made from vegetable oils. One was from the kapok seed oil by using an activated clay catalyst. The purpose of this study is to determine the characteristics of the clay catalysts for the synthesis of biodiesel, making biodiesel from kapok seed oil, determine the effect of the molar ratio of oil-methanol to yield biodiesel, and determines the physical properties and chemical properties of biodiesel produced. Activated clay as acids and bases using H2SO4 and NaOH. Biodiesel is made by reacting kapok seed oil and methanol at 60°C, the reaction time of 1.5 hours, and a catalyst concentration of 0.5% w/w. Treatment variations molar ratio of reactants affect the yield of biodiesel, as well as variations in the concentration of acids and bases for the activation of the catalyst on the clay affect the yield of biodiesel. The result of physical charactearization density 884 kg/m3, viscosity 3.28 mm2/s, acid number of 0.49 mg-KOH/g biodiesel and flash point 200°C meet the SNI standards (SNI 7182-2015).Keywords: activation, biodiesel, clay, molar ratio, yield
Pembuatan Biodiesel Dari Minyak Nyamplung (Calophyllum Inophyllum) Menggunakan Katalis Basa Heterogen Naca-Geopolimer Mustapa Ardi; 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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Biodiesel is a product of transesterification reaction fat/oil and methanol with the aid of catalyst. Catalysts is commonly used in the production of biodiesel is strong base catalysts such as NaOH and KOH which is difficult to separate from the product of the reaction because it has the same phase as the reactant. Therefore, it is necessary to develop catalyst technology in order to get the production process becomes more economical, applicable and environmentally friendly, one of the catalyst is geopolymer. Geopolymers are synthesized by reacting sodium silicate, metakaolin, and bottom ash. Geopolymers is used in transesterification reaction. The process variables are weight of oil 50 grams, stirring rate 400 rpm, reaction time 120 minutes, and temperature of 65 oC, with catalyst 2% (w/w) and mole ratio of methanol:oil 1:12. The yield of biodiesel 88.04% with density 875 kg/m3, viscosity 4.27 mm2/s, the acid number of 0.29 mg-KOH/g biodiesel, the flash point 140 °C and alkyl ester level of 99,91% comply with the SNI standards (SNI 7182: 2015). Keywords: biodiesel, calophyllum inophyllum oil, geopolymer, transesterification, yield
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