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All Journal Jurnal Sains dan Teknologi Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Dharmakarya : Jurnal Aplikasi Ipteks Untuk Masyarakat Jurnal Dampak Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Unri Conference Series: Community Engagement International Journal of Community Service Journal of Bioprocess Chemical and Environmental Engineering Science Journal of Community Engagement Research for Sustainability Jurnal Teknologi Kimia Unimal
Elvi Yenie, Elvi
Fakultas Teknik, Universitas Riau
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering 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 Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Nursing Public Health Social Sciences Other

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Prediksi Sebaran Partikulat Insinerator Rsud Arifin Achmad Menggunakan Screen View Hardyan, Rici; Sasmita, Aryo; Yenie, Elvi
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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Hospitals as health facilities that are curative and rehabilitative should be free of pollutants such as particulate matter. One cause of the particulate matter in the hospital is incineration. Hospital incinerators that burn trash in hazardous / infectious, so it is necessary to determine the level of distribution of the particulates produced by burning incinerator. This research is a descriptive study using dispersion method gauss with Screen View program. Parameters that are seen medical waste generation, particulate concentrations, wind direction and wind speed, and distance distribution of particulates. The data obtained are presented in the form of graphs and tables. The highest particulate distribution on the wind direction is north east with the concentration of 2.32 μg / m3 at a distance of 100 m from the incineratorat a distance of 100 m from the incinerator emissions rate 0.00957 g/s, 0.38 stack inside diameter and 9 m stack high.Key word: incinerator, particulate, screen view, wind direction, wind speed.
Pengaruh Variasi Penambahan Ragi Tape Dan Npk Terhadap Konsentrasi Bioetanol Hasil Fermentasi Jerami Padi Wahyuni, Lira Aulia; Yenie, Elvi; Daud, Syarfi
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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One of the alternative energy sources can be used as a substitute for fossil fuel-based energy is bioethanol. One of the raw material is rice straw ethanol. Rice straw can be used as raw material for bioethanol production because many contain cellulose. According to the Central Bureau of Statistics 2012 hay production in Indonesia reaches 64-96 million tons / year. This study aims to determine the optimal amount of yeast and NPK required in the manufacture of bioethanol once saw statistically influence of yeast and NPK against ethanol concentration produced, and test the density and viscosity of bioethanol fermented rice straw. This research was conducted by the method Separate Hydrolysis and Fermentation (SHF), with the addition of yeast transformed variables tape (5%, 10%, 15%, 20%) and the addition of NPK (0, 5%, 10%, 15%, 20% ). Bioethanol fermented bioetanolnya concentration measured using Alkoholmeter and bioethanol characteristic tests by measuring the density and viscosity. From hasi lpenelitian, obtained the highest ethanol concentration is 6% achieved on the addition of yeast 15% and 20% NPK. Density and viscosity of ethanol in the amount of 0.8482 g / ml and 1.6809 cP achieved with the addition of yeast 15% and 15% NPK.Keywords: bioethanol, rice straw, Saccharomyces cereviciae, cellulose
Perengkahan PFAD (Palm Fatty Acid Destillate) Untuk Menghasilkan Biofuel Menggunakan Katalis Ni-Mo/Zeolit Setiawan, Rudi; Zahrina, Ida; Yenie, Elvi
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Petroleum reserves are depleted in Indonesia along with increased fuel requirements, demanding Indonesian society to harness alternative energy, one of which is biofuel. In this study, biofuels produced from cracking fatty acids contained in Destillate Palm Fatty Acid (PFAD). PFAD converted into biofuels via catalytic cracking process using a catalyst Ni.Mo / Zeolite with reaction temperature 380 oC in a stirred batch reactor. Metal concentrations in the zeolite was varied at 0%, 0.5%, 1% and 1.5% and the variation of the reaction stirring 300 rpm, 400 rpm, 500 rpm and 600 rpm. Cracking process using nitrogen gas with a flow rate of 150 ml / min. Yield (%) of the product obtained at the maximum stirring speed of 500 rpm with a metal concentration of 1%, amounting to 71.43% or 125 ml with 31.53% biofuel conversion. The composition of biofuels on cracking products was 8.8% and 35% Gasoline Kerosene and Diesel.  Key Words: Biofuel, Catalytic Cracking, Ni.Mo/Zeolite, PFAD
Studi Timbulan, Komposisi Dan Karakteristik Fisika Dan Kimia (Proximate Analysis) Sampah Non Domestik Di Kecamatan Tampan Kota Pekanbaru Sari, Siti; Yenie, Elvi; Elystia, Shinta
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
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Increased community activities will increase the amount of waste generated. Tampan District is one of a small town in the city of Pekanbaru can not be separated from tge garbage thing. This research aims to determine the generation, composition and physical characteristics and chemical (proximate analysis) non domestic garbage in Tampan of District Pekanbaru of City and generation data, composition and physical characteristics and chemical (proximate analysis) garbage are indispensable in designing of garbage management system. This research was conducted in 37 places including 19 institutions ( 8 schools, 5 offices and 6 health centers), 11 commercials garbage (6 stores, 1 markets, 2 restaurants and 2 hotels), 1 street sweeping and 6 industrials. Determination of non-domestic garbage generation is performed by interviewing and sampling of garbage at source based methode SNI 19-3964-1994 performed for eight day in a row. The results study of non-domestic generation of Tampan District Pekanbaru City in the amount of 0,38 kg/p/d in of weight unit or 4,13 l/p/d in volume unit. The composition of non domestic Tampan of District Pekanbaru of City solid waste domination of organic waste about 60,94% and anorganic garbage composition of 39,06%. For Physical characteristics such as specific weight is 0,23 kg/l and composition factor is 1,38 litre. The chemical characteristics (proximate analysis) are moisture 26,2%, volatile rate 54,6%, ash rate 9,5% and 10,0% fixed carbon rate.Key words : non domestic solid waste, waste generation composition, physical characteristic, chemical characteristic (proximate analysis).
Produksi Bioetanol Dari Pati Sorgum Dengan Variasi Penambahan Cordyceps Sinensis Dan Waktu Fermentasi Novriandi, Rizky; Yenie, Elvi; Muria, Sri Rezeki
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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Excessive human consumption and dependence on fossil fuels cause fuel reserves become depleted, while for the renewal takes thousands and even millions of years. To overcome fossil fuel dependency is carried sorghum starch conversion into bioethanol as a renewable energy. In this research, sorghum starch fermentation process using bacteria Saccharomyces Cerevisiae reviewed variations additions Cordyceps sinensis 0.5 g, 1 g, 1.5 g, and 2 g, to obtain bioethanol from sorghum starch with higher level. The purpose of this study to determine the effect of addition Cordyceps Sinensis variation conversion to bioethanol produced and determine the effect of variations in the fermentation time to conversion of bioethanol produced. Fermentation was conducted in 2 Liter fermentor with variations of fermentation time from 12, 24, 48, 72, until 96 hours, addition of Cordyceps Sinensis 0.5 g, 1 g, 1.5 g, and 2 g. Cordyceps sinensis role in improving the resilience microbial cells in the fermentation medium to produce bioethanol at higher level. The addition Cordyceps Sinensis can promote the growth microorganisms and fermentation activity. Sorghum starch fermentation process produce optimum conditions on addition Cordyceps Sinensis much as 1 gram and fermentation time of 96 hours with a bioethanol content of 2.124882% (v / v).Keywords: Bioethanol, Starch Sorghum, Saccharomyces Cerevisiae, Cordyceps Sinensis
Pre-Treatment Jerami Padi Menggunakan Proses Organosolv Dengan Variasi Konsentrasi Pelarut (CH3OH) Dan Waktu Pemasakan Siregar, Yohana; Yenie, Elvi; Daud, Syarfi
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
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Rice straw is one of  agricultural waste products which has not to be used in huge area. Rice straw is usually used for some purposes, such as roofs and fodder. Biomass or rice straw is composed of three main components, namely cellulose (34.2%), hemicellulose (24.5%) and lignin (23.4%). Delignification aims to separate lignin from other compounds contained in the biomass by using an organic solvent which is methanol.  Due to this solvent is easier to obtain, more friendly to enviroment, and the solvent could be recovered back. Lignin contained in rice straw could potentially be used as a source of alternative materials in various industries, the one is adhesive industry. The aims of this research are to study the effect of the concentration of solvent and cooking time to the achieve the lignin. The study was conducted with a cooking time of  60; 120; and 180 minutes, the concentration of methanol 65; 75; 85; and 95 % w/w. The process steps in this research include size reduction by using mixing, cooking (delignification) using methanol, then washing and filtering stages. In this research, the lignin yield best at 13.6 % which was obtained at cooking time of 120 minutes with 65 % methanol concentration and the lignin content of 20.5 % w/w. Lignin was analyzed functional groups with the Fourier Transform Infra Red spectroscopy (FTIR ) .  Keywords: Cooking, Delignification, Fourier Transform Infra Red spectroscopy (FTIR), Lignin, Organosolv, Rice Straw
Application of Activated Carbon Compost Raw Material As Adsorbent For Removal Of Peat Water Dyes Desmawita, Dwi; Yenie, Elvi; Daud, Syarfi
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
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Peat water has a low pH (3-5), brown (124-850 PtCo), and contains many organic substances that do not meet the standards of water quality requirements as Permenkes No.416/MENKES/PER/IX/1990. Therefore it is necessary for processing methods to eliminate pollutants contained in the peat water so it can be used according to quality standards, either by adsorption. Adsorbent used in this research is compost. Compost carbonized by variation of 30, 60 and 90 minutes, which is activated in physics at a temperature of 500 ° C. Adsorbent mass variations as much as 1, 2, 3, 4 and 5 grams with a stirring speed of 100 rpm for 120 minutes. Characteristics of activated carbon in the form of compost moisture content, ash content, volatile and fixed carbon content obtained the best results in 60 minutes with a water content of 4.00%; ash content 0.99% volatile 1.57% and fixed carbon 97.44%. The efficiency of color reduction was measured using a UV-VIS spectrophotometer. The result showed that the highest efficiency was 81,63% at carbonization time 60 minutes with mass 5 gram and the lowest efficiency value was 66,57% at carbonization time 30 minutes with mass 1 gram.Keywords : Adsorbent, activated carbon, compost, color.
Pengaruh Kecepatan Dan Waktu Pengadukan Dalam Pengolahan Air Gambut Menggunakan Serbuk Biji Asam Jawa (Tamarindus Indica L) Sebagai Biokoagulan Asward, Mayshara; Elystia, Shinta; Yenie, Elvi
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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Peat water has potential as a source of raw water because of its considerable availability, but the characteristics of peat water have not standard of quality according to Permenkes No.416/MENKES/PER/IX/1990 and PP. 82 of 2001. One method of peat water treatment is coagulation flocculation that requires coagulant. Tamarind seed powder is one type of natural coagulant substitute chemical coagulant because it contains tannin, natural polymer such as starch, sap, and albuminoid that play a role in water purification. This research used coagulation and flocculation method with combination of stirring variation 100 rpm / 40 rpm; 125 rpm/45 rpm; 150 rpm/50 rpm and 10 minutes flocculation time; 20 minutes; 30 minutes using Tamarind seed powder with 200 mesh particle size and dose 2,5 gr/200 mL peat water to the decrease COD, dyestuff, organic matter, TSS, and pH. In this study also conducted pH conditioning at peat water pH and pH condition 7. The results showed that peat water treatment at fast rapping speed 125 rpm, slow stirring speed 45 rpm and slow stirring time 20 minutes at natural pH condition of peat water (4,69) using Tamarind seed powder have the best effect on water quality parameter and able to increase water pH. Decrease in COD by 75.90%; dye of 84.59%; organic matter 72,12%; and TSS of 81.70% and peak water pH to 6,8. Keywords : Coagulation Flocculation, Peat Water, Stirring Times, Flocculation Times, Tamarind Seed Powder
Pengaruh Bioaktivator Mol Tapai Pada Proses Pengomposan Limbah Lumpur Kelapa Sawit Yang Disterilkan Putri, Novia Eka; Yenie, Elvi; Daud, Syarfi
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
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Natural composting process takes a long time so many products developed bio-activator such as Mol. This study aims to determine the effect of concentration of activators Mol Tapai on the quality of the compost produced. Composting methods do facultative. Composting is done in the reactor to the size of the reactor used with d1 = 28 cm; d2 = 28 cm; t = 40 cm; air exchange hole diameter of 1 cm to 5 cm distance between holes. Variables used are sterile compost raw material variation and non-sterile as well as variations in the number of Mol Tapai is 200 ml, 250 ml, and 300 ml each treatment. Composting research results with a variety of raw materials by variation Mol fermented sterile 250 ml obtain C / N ratio and a high of 11.35% in non-sterile raw material variation with 250 ml Mol variation of 10.67%, which is in accordance with SNI 19-7030 -2004 about the specifics of mature compost.Keywords: Mol Tapai, palm oil sludge, compost
Produksi Bioetanol Dari Limbah Kulit Nanas Menggunakan Bakteri Clostridium Acetobutylicum Dengan Variasi Konsentrasi Inokulum Dan Penambahan Nutrisi Sari, Nurriya Mayang; Muria, Sri Rezeki; Yenie, Elvi
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
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One material that has potential as raw material for bioethanol is the pineapple peel. Pineapple peel is one of the biggest agricultural waste in Indonesia, especially in Riau derived from pineapples. Pineapple peel can be used as raw material for bioethanol production due to contains of fiber, carbohydrates and glucose. This study was conducted to produce ethanol by fermentation of pineapple peel slurry with treatment concentration inoculum at 10%, 12%, 14% and 16% with the addition nutrition of urea 0,6 g/l , ammonium sulphate 1,3 g/l and fermentation time of 2, 4, 6, 8 and 10 hours. The fermentation was conducted in batch process. The result showed that inoculum volume and substrate fermentation also ethanol increased since the population of cells improved.The highest yield of bioethanol is 9% (v/v) at inoculum concentred 14% with addition nutrition of urea and the fermentation time 8 hours.keywords : volatile acid, urea, amonium sulfate, fermentation.
Co-Authors Abdil Aziz Al Hakim Abdul Manan Adi Putra Pratama Adrianto Ahmad Amarullah Amarullah Amri, Idral Andhini Getha Kusuma Arga Aflyn Febrina H Aryo Sasmita Asward, Mayshara Atria Martina Atria Martina Azzah Fizda Bochari - Bonita Esther FS Bunga Fitriani Gumadita Chaniago Chaniago Chrysty Elesa Hutauruk David Andrio Desce P Simarmata, Stella Desmawita, Dwi Desra Shinta Hasri Dicky Maulana Dikki Awanda Dispriana, Nurmala Dwi Desmawita Dwi Laura Pramita Edward Edward Edward HS Edward Hs Edward, Edward Efpia Naomi Yohana Tambunan Elgina May Lestari Eriyati Ester Melinda Evia Yoana Fatiha Rizqa Feranita Feranita Floria Christin Grethy Asmara Sitorus Hafidawati, Hafidawati Hany Susanti Pangaribuan Hardyan, Rici Hatflan Erico Rambe Helviana Dwika Herfi Rahmi Hotni Lamtiar Husni, Afdaul Ida Zahrina Ifni Rimijuna Imam Suprayogi Irpan Syafrianda Ivnaini Andesgur Iwan Kurniawan Jaspi, Khalika Jecky Asmura Jessar Hendrianto Jhon Armedi Pinem Joleha, Joleha Khairat, Nur Khalidazia Putri Lidya Astuti Lilis Anggreani Lira Aulia Wahyuni, Lira Aulia Lita Darmayanti Loisa Rosalia Sitompul Martin, Dicky Mayang Sari Maysha Permata Sari Megah Mulia Ginting Miftahul Ulum Mareta Miska Alemina Ginting Muhamad Ghifar Alharis Muhammad Fajri Chaniago Muhammad Reza Mutia Khairunnisa Naomi Ebinasari BR Sembiring Naufal, Hafiz Aulia Niko Ronaldo P. S Nora Aprilin Novebriantika Novebriantika Novita Faradisha Novriandi, Rizky Nurfajri, Nabila Nurriya Mayang Sari Pope Jessica Sirait Pretty Nova M H Priscilia P Girsang, Yemima Priyambada, Gunadi Purwoko, Agus Putra, Anggara Putri, Dini Riskiana Putri, Novia Eka Queen Destya Rahmadani Mutia Ramida Elisa Kristiani Simanjuntak Rani Ariyanti Refvi Gusvita Sari Rezeki, Muhammad Dio Ricki Gunawan Rosdinar Hasibuan Rudi Setiawan Ryan Renaldi Sally Mandari Santi Dwi Putri Santoso Nugroho Sari, Nurriya Mayang Sari, Siti Setiaries, Vonny Sheilviana Angela Shinta Elystia Shinta Nurdiyanti Silvi Nora Sinta Sinta Sisri Wantri Sanjaya Manalu Siti Aisyah Sukma Solly Aryza Sri Armita Sari Sri Rezeki Muria Suci Sukmawati Syafdika Sari Siregar Syafrida Khairani SYAIFUL BAHRI Syarfi Daud Tambunan, Efpia Naomi Yohana Tania Octalina Tamamy Tengku Firly Musfar, Tengku Firly Ulfah Nurulita Vera Fitriani Virghea Septilda Zalchie Wanda Putri Saragi Winny Noviami Erziza, Winny Noviami Witami, Witami Yelmida Azis Yohana Siregar Zahra Nadia Elysahaq Zostria Hanijah Zul Fadly Khaira