Article Per Year (5 Year)
p-Index From 2020 - 2025
5.541
P-Index
This Author published in this journals
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

Published : 113 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 113 Documents
Search

 3   4   5   6   7 
Efisiensi Biosorpsi Logam Cr (VI) Menggunakan Spent Mushroom Substrate (SMS) Coprinus Comatus Yang Diaktivasi Oleh NaOH Hany Susanti Pangaribuan; Elvi Yenie; Atria Martina
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Metal Cr (VI) is a heavy metal contained in electroplating wastewater which is very stable and dangerous for the environment and human health. This study aims to determine the ability of SMS C. comatus in removing metal Cr (VI) in electroplating wasteswater with mass 3 grams, biosorption contact time 30 minutes with activation treatment using NaOH (0,3N) and activation time 15,30 and 45 minutes. The allowance made by SMS C. comatus in reducing Cr (VI) in electroplating wastewater with initial concentration of Cr (VI) 47.23 mg/L with the highest efficiency value of 39.02 % in activation time 45 minutes. Keywords: biosorption, Spent Mushroom Substrate (SMS), electroplating wastewater
Pengaruh Variasi Tinggi Tumpukan Pada Proses Pengomposan Limbah Lumpur Sawit Terhadap Termofilik Hatflan Erico Rambe; Elvi Yenie; Ivnaini Andesgur
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Palm Oil Mill Effluent treatment produces sludge as byproduct. The sludge produced will cause problems for environment if there are no actions and treatments taken toward the sludge. The purpose of this research is to reduce the pollution of palm oilmill effluent with aerob composting methods using sludge, boiler ash and palm oil fiber. The instrument used is a simple composter with 60 cm height and 30 cm diameter. The sludge is mixed with boiler ash, fiber and organic waste, and then EM-4 was added as an activator. This research used the addition of 0,7 % EM-4activator, with variations of stack’s height are 40, 45 and 50 cm to find out the optimal height to achieve thermophylic condition and the quality of the compost produced. The result of this research shows that compost with 50 cm stack’s height reached the highest temperature of 47,30C. The quality of the compost produced meets the SNI’s 19-7030-2004 requirement. The compost is mature at the 21st day with result Rasio C/N= 12,2. The conversion of palm’s oil sludge into compost can beused as an alternative in utilization waste into valuable product.Keywords: boiler ash, compost, EM-4 activator, fiber, palm’s sludge
Isolasi Lignin Dari Jerami Padi Dengan Metoda Klason Hotni Lamtiar; Elvi Yenie; Yelmida Yelmida
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Lignine is a complex polimer with high molecular weight which compiled of fenilpropane units. This study aims to know concentration of NaOH influence and delignification time of rice straw influence againts sucrose content of rice straw. Analysis of lignine purity using Klason Method. Isolation of waste rice straw are extraction, hydrolysis, delignification, and purity by using Klason Method. Extraction process be done on variety ofNaOH catalyst concentration (4%, 6%, 8%) in hydrolisis process and delignification time (1 hour, 11/2 hour, and 2 hour) . The best hydrolisis result is 8%, the best delinification time is 1 jam with concentration 8% NaOH in the process of ripening and the highest purity of lignine is 3,14%. The result of delignification will be analized its lignine concentration usingfor Fourier Transform Infra Red (FTIR) to know its function cluster.Keywords: Delignification, Extraction, FTIR, Hydrolisis, Rice Straw, Lignine, Klason Method
Pemanfaatan Pestisida Nabati Dari Ekstraksi Daun Pandan Wangi Dan Umbi Bawang Putih Pretty Nova M H; Elvi Yenie; Shinta Elystia
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pest control with botanical pesticides is a relatively safe alternative control for the environment by using plant extracts that contain ingredients of pesticides. The purpose of this research is to make pesticides from plant materials ie fragrant pandan leaves and bulbs of garlic and test the secondary metabolites of maximum yield. This research was conducted by the method of extraction maceration, variations in immersion time is 1, 3, 5, 7, and 9 days, the ratio of material and solvent is 1: 4, after the immersion process is filtered and the filter in the form of the filtrate and separation of secondary metabolites by rotary evaporator, and then testing the secondary metabolites. The results of the study of secondary metabolites that have been successfully tested by the method of phytochemicals which include alkaloids, flavonoids, saponins, tannins, and sulfur.Keywords: Botanical pesticides, Pandanus amaryllifolius Roxb, garlic bulbs, extraction
Pengaruh Massa Terhadap Kapasitas Adsorpsi Komposit Berbahan Spent Bleaching Earth (SBE) – Spent Mushroom Substrate (SMS) Sebagai Adsorben Logam Cu2+ Ryan Renaldi; Elvi Yenie; Lita Darmayanti
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Heavy metal pollution is found a lot in the environment, One of the alternative to reducing heavy metals from industrial waste by using adsorbent composite made from Spent Bleaching Earth (SBE) and Spent Mushroom Substrate (SMS). This study aims to determine adsorption capacity of the SBE-SMS composite against Cu2+ metal ion. This study used variation mass adsorbent 1, 3, 5, 7 dan 9 (gram), and contact time adsorption 60 minute. With adsorbent composition 25% SBE and 75% SMS, concentration artificial solvent Cu 20 mg/L, pH 5 and stirring speed 60 rpm obtained highest adsorption capacity was obtained at a mass of 1 grams with a capacity value of 2,9948 mg/g and the lowest adsorption capacity at a mass of 9 grams with a capacity value of 0,6568 mg/g.Key words: Adsorption, Composite, Spent Bleaching Earth, Spent Mushroom Substrate, Cu2+
Karakterisasi Dan Potensi Pemanfaatan Palm Oil Mill Effluent (POME) Menjadi Bioetanol Dan Biohidrogen Ramida Elisa Kristiani Simanjuntak; David Andrio; Elvi Yenie
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The need and consumption of the community for fuel oil (BBM) which is increasing from year to year is inversely proportional to its availability. One alternative energy solution to replace fossil energy is bioethanol and biohydrogen. POME has a high content of organic compounds such as carbohydrates, cellulose, sucrose, and starch so that it has the potential as a substrate for fermentation of bioethanol and biohydrogen. Anaerobic POME processing technology can increase the formation of bioethanol and biohydrogen. This research was conducted by analyzing the characteristics of POME through pH, demand for chemical oxygen (COD) and volatile suspended solids (VSS) and their potential in producing bioethanol and biohydrogen. From this study COD obtained a value of 32000 mg / L. Potential energy of bioethanol and biohydrogen formed through the degradation of organic matter in POME obtained respectively 1700 ml H2 / ml POME / day and 1.35g / L for 8 days Keywords: Acidogenesis, anaerobic, bioethanol, biohydrogen, palm oil mill effluent
Metode Multiv Soil Layering Dalam Penyisihan Parameter TSS Limbah Cair Kelapa Sawit Dengan Variasi Hydraulic Loading Rate (HLR) Dan Material Organik Pada Lapisan Anaerob Rahmadani Mutia; Shinta Elystia; Elvi Yenie
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study uses Multi Soil Layering (MSL) to cultivate oil palm liquid waste. The purpose of the research was to determine the efficiency of contaminant parameter Total Suspended Solid (TSS) allowance, study of the influence factors of variation of organic material in the mix on a layer of soil anaerobic and variation of Hydraulic Loading Rate (HLR) of the efficiency of the liquid waste processing with MSL, and compare research results with Keputusan Menteri Lingkungan Hidup No. 51 in 1995. In this study used two reactors measuring 30 cm x 26 cm x 35 cm, consisting of aerobic and anaerobic layer. Aerobic layer on both the same reactor, namely the gravel and perlit measuring 3-5 mm, while the second reactor anaerobic layer is distinguished, where the soil is a mixture of 1 reactors with active charcoal coconut shell and on reactor 2 is a mixture of ground with active charcoal banana peels by a ratio of 2: 1. Liquid waste oil palm streamed with the variation of Hydraulic Loading Rate (HLR) of 500 L/m2 day, 750 L/m2 day, 1000 L/m2 day at each reactor. TSS concentration before processing by the method of MSL is 890 mg/L, and, after processing concentration TSS is down to 100-240 mg/L. Variation of organic material gives the effect on the efficiency of the allowance which the TSS on charcoal activated coconut shell that has larger pores can do more MSL maximum mechanism. Variation of Hydraulic Loading Rate (HLR) also exert influence, where the smaller the HLR is given then the efficiency will be high. Efficiency of TSS removal are 79,77-88,76% in reactor 1 and 73,03-79,77% in reactor 2.Keywords: Efficiency, Hydraulic Loading Rate (HLR), Multi Soil Layering (MSL), Palm Liquid Waste, Organic Material.
Pengaruh Konsentrasi Perekat Tapioka Pada Pembuatan Biobriket Dari Lumpur IPAL Produksi Minyak Sawit Dan Cangkang Biji Karet Refvi Gusvita Sari; Elvi Yenie; Syarfi Daud
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The use of fossil fuels is increasing every year, necessitating finding alternative energy sources as a substitute for fossil fuels. Alternative energy sources that can be used as renewable energy are biobriquettes derived from biomass. A very abundant agricultural waste, such as WWTP sludge, palm kernel shell production, but not utilized optimally. The purpose of this study was to study the effect of variations in tapioca adhesive concentration in the manufacture of biobriquette on the analysis of proximate and compressive strength produced. The process of making biobriquette in this study with variations changed the concentration of tapioca adhesive 5%, 8% and 11%. Fixed variations used were carbonization temperature of 300oC mud, 500oC rubber seed shells for 1 hour, raw material composition of WWTP sludge charcoal and 60%: 40% of the total weight of 10 gram briquettes and pressing pressure of 100 kg/cm2. Carbonization is carried out using furnaces and drying is carried out in a room 24 hours and then oven for 1 hour at a temperature of 105oC. The results showed that the best briquettes lie in the variation of 11% adhesive concentration which produces a compressive strength of 11,55 kg/cm2, moisture content of 7,5%, ash content of 7%, volatile content of 10,50% and carbon content of 75%.Keywords: biobriquette, rubber seed shell, carbonization, waste WWTP palm oil production, compressive strength.
Pembuatan Bioetanol Dari Kulit Nenas Menggunakan Enzim Selulase Dan Yeast Saccharomyces Cerevisiae Dengan Proses Simultaneous Sacharificatian And Fermentation (SSF) Terhadap Variasi Konsentrasi Inokulum Dan Waktu Fermentasi Dwi Laura Pramita; Elvi Yenie; Sri Rezeki Muria
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

One of potential material that could be the raw material of bioethanol is pineapple peels. Pineapple peels is one of the biggest agricultural wastes in Indonesia, especially for Riau Province. Pineapple peels could be raw material for bioethanol production due to contains of fiber, carbohydrate and glucose. The purposes of this research are for making bioethanol from pineapple peel by using Simultaneous Sacharification and Fermentation Process (SSF) for finding the maximum inoculums concentration and the best time for fermentation process. The variations of inoculums are 5%, 7%, 10%, 12% and 15%. Then the variations for fermentation time are 2, 3, 4 and 5 days. The consists of bioethanol were tested by using alcoholmeter. From this research, the highest value of bioethanol is 14% or equal to 110,502 mg/ml, for variations at 10% inoculums and 4 days fermentation process.                                             Keyword: Bioethanol; Pineapple peels; Saccharomyces           Cerevisiae; Cellulose; SSF
Studi Variasi Ukuran Partikel Biosolid IPAL Pabrik Kelapa Sawit (PKS) Menggunakan Aktivator H3PO4 Syafdika Sari Siregar; Elvi Yenie; Syarfi Daud
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The untreated Biosolid Waste of POM from WWTP can be pollutants for the soil surface. The Biosolid Waste utilization through the sustainable approach of environment is by changing the waste biosolid POM from WWTP into the adsorbent. The particle size of the activated carbon biosolid POM be varied in a range, those are 100 and 120 mesh and chemically activated with H3PO4 9% as activators and physically activated using furnaces with temperatures of 500 °C for an hour. The best quality of biosolid POM as activated carbon is analyzed by water content, ash content and the absorption of iodine, in amount of 3.48%; 0.33%; 25.380 mg/g while the biosolid POM in particle size of 120 mesh were added.Keywords : Adsorbent, activated carbon, biosolid, particle size.
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