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Sri Rezeki Muria
Jurusan Teknik Kimia Fakultas Teknik, Universitas Riau
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Pembuatan Bioetanol dengan Proses Fermentasi Nira Aren Menggunakan Saccharomyces Cereviceae Dengan Variasi pH Awal Dan Waktu Fermentasi Muria, Sri Rezeki
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

Bioethanol is an alternative fuel that produced from plant materials containing starch, sugar, and cellulose through a process of fermentation, and also bioethanol is environmentally friendly and renewable natural resources. Palm juice is one of potential materials to be processed into bioethanol. Availability of sugar palm land in Indonesia makes sugar palm juice has the potential to be processed into bioethanol. Fermentation process using yeast Saccharomyces cereviceae, glucose is converted into bioethanol and carbon dioxide. This research was observed the effect of variation in pH 4,5; 5,0; 5,5; 6,0 and variations of fermentation time of 24, 36, 48, 60 dan 72 hours. Fermentation took place at room temperature (25 - 30 0C) and stirring speed of 200 rpm. Ethanol concentrations were analyzed using alcoholmeter. The optimum fermentation process was shown on the pH 4,5 fermentation time of 72 hours with ethanol concentrations obtained 7% (v / v) or 55,25 mg / ml.Keyword : Bioethanol, fermentation, Palm juice, Saccharomyces cereviceae.
Pengaruh Laju Alir Umpan Terhadap pH, Alkalinitas Dan Asam Volatil Pada Pengolahan Limbah Cair Kelapa Sawit Menggunakan Bioreaktor Hibrid Anaerob Dua Tahap Salis, Gita Aziza; Ahmad, Adrianto; Muria, Sri Rezeki
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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Ratio of total volatile acid and alkalinity can represent the stability of bioreactor. Goal of this experiment is to determine the influence of feed flow rate to change of pH, alkalinityand volatile acid in two stage of anaerobic hybrid bioreactor, it also to knows the stability rate of bioreactor that used. Bioreactor that used in this experiment is a bioreactor thathave two pattern of microorganism growth there are suspended and cling phase with rock and palm oil shells as the immobilize media of microorganism cell. Active volume of bioreactor that used in this experiment is 10 liter with variating feed flow rate 1,4; 2; and 3,3 L/day for 2nd stage bioreactor with operation condition pH 6,8 – 7,2 in room temperature. Parameter that analyzed from this experiment is the ratio of volatile acid withalkalinity from bioreactor effluent. In 1st stage of bioreactor, feed flow rate that used is 5 L/day and the result found was average of pH in 6,7; average of alkalinity concentration is2220,8 mg/L and average of volatile acid concentration is 413,52 mg/L so that ratio of TAV/Alkalinity was 0,812. Results of this experiment shows that the highest stability of 2nd anaerobic hybrid bioreactor is 0,033 in smallest feed flow rate 1,4 L/day.Keywords : alkalinity; Hybrid anaerobic bioreactor; stability; Volatile acids
Pengaruh Waktu Detensi Terhadap Efisiensi Penyisihan COD Limbah Cair Pulp Dan Kertas dengan Reaktor Kontak Stabilisasi Tasbieh, Hayatrie; Ahmad, Adrianto; Muria, Sri Rezeki
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

Every year the production of pulp and paper continued to increase. This resulted in the wastewater produced in large quantities. Characteristics of Chemical Oxygen Demand (COD) in the pulp and paper effluent is 3500 mg/L. COD is one of the important parameters in determining the quality of wastewater and measurement of water pollution by organic substances. High value of COD in waste water indicates that the degree ofcontamination at a higher too. Therefore, the pulp and paper wastewater treatment is necessary before it is discharged into waters. COD handling of pulp and paper wastewater can be aerobically by using the stabilization contact reactor. The aim of this study is to set aside the content of COD and determine the effect of detention time on COD removal efficiency and optimum pH of pulp and paper effluent. The results showed that the CODremoval by varying the detention time for 1 hour, 2 hours, 3 hours and 4 hours, the highest COD removal efficiency obtained at 4 hours in the amount of 87.14 % with pH of 8.0. Thissuggests that the stabilization contact reactor is stabilized in removing wastewater COD content of the pulp and paper.Keyword: Aerobic, Provision for the content of COD, Pulp and paper wastewater, Stabilization contact reactor.
Pembuatan Bioetanol Dari Limbah Padat Sagu Menggunakan Enzim Selulase Dan Yeast Saccharomyces Cerevisiae Dengan Proses Simultaneous Sacharificatian and Fermentation (SSF) Nuryanti, Lidya; Muria, Sri Rezeki; Chairul, Chairul
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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Bioethanol is one of alternative energy that more friendly to environment because has an ability to reduce carbon dioxide emissions.  Biothehanol produced from fermentation process of glucose that comes from carbohydrate materials with the help of microorganism. The purposes of this research are to get the best operation condition that influenced by particle size and source of the nutrients to produce high level of biothanol and find the best time to do fermentation process. There are four step in this research, they are : preparation of material, equipment and nutrients sterilization, the making of inoculums and finally is scarification simultaneous fermentation process (SSF). Variations of particle size are 20-40 mesh and 60-80 mesh. Variations of nutrients source are come from urea and yeast extract. Fermentation process is done at pH 5 and room temperature. The highest level of biothanol produced by material with particle size  60-80 mesh and nutrients from urea. The best time for fermentation process is during 72 hours.  Key Words: Bioetanol, Cellulase enzym, Fermentation, solid waste of sago, Saccharomyces cerevisiae.
Pengaruh Waktu Inokulasi Inokulum Dalam Pembuatan Bioetanol Dari Limbah Srabut Buah Sawit Menggunakan Saccharomyces Cerevisiae Firmanto, Firmanto; Ahmad, Adrianto; Muria, Sri Rezeki
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Bioethanol is produced with raw materials containing starch plant or carbohydrates (rice,  maize, tubers, etc.) and cellulosic materials (wood, agricultural waste), conducted through the conversion of carbohydrates into sugar (glucose) with the fermentation process by microorganisms. Bioethanol can be made as solvents, perfume ingredients, flavourings, food dyes and medications, even can be made as alternative fuels. Bioethanol production is done by the hidrolysis and fermentation or frequently called to SHF process (Separated Hydrolysis and Fermentation). Cellulose and hemiscellulose  to be used is sourced from palm fiber waste. The goal of this study is to obtain the effect of time of inoculation inoculum and also get the optimum concentration of  bioethanol in the manufacture of bioethanol from palm fruits fiber waste. Stages of the purification process starts from pretreatment, delignification with ash extract TKS and purification with hydrogen Peroxide (H2O2). After the purification process, the next stage is hidrolysis process with sulfur acid (H2SO4  2M). Hidrolysis was done at a temperature of 100 oC and a reaction time about 3 hours to get the initial glucose. The effect of inoculum time to be done in this study by the variaion of time 24, 48, 60 and 72 hours. Number of cells for the inoculum  will be analyzed with spectrophotometer by observing optical density (OD). Fermentation process will take place during 4,5 days (108 hours) by the variation of time 12, 24, 48, 72, 96 and 108 hours with the help of  Saccharomyces cerevisiae. The result showed that the best time of inoculum occurred at 60 hours with OD 0,882 with time of  fermentation at 96 hours which got the concentration of bioethanol 6 v/v (47,34 gr/L). Keywords: bioethanol, fermentation, hidrolysis, inoculum, palm fiber, Saccharomyces  cerevisiae
Pengaruh Laju Pengadukan Dalam Pembuatan Bioetanol Dari Limbah Serabut Buah Sawit Menggunakan Saccharomyces cerevisiae Jeckson, Edie; Ahmad, Adrianto; Muria, Sri Rezeki
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The development of new and renewable energy resources of government’s strategies to reduce CO2 emission from industry waste and declining for national dependence of oil fuel. One of alternative energy that use to substitute a fuel oil is bioethanol. Palm fruit fibre waste is the one of potential source because of the biggest feedstock in Indonesia and the less uses that waste well. Some of type process used to convert bioethanol from industry waste, such as fermentation. The purpose of this experiment is decide the effect of fermentation in bioethanol production from palm fruit fibre waste to get an optimum bioethanol product. This experiment had pretreatments like delignification with ash extract palm fruit bunch and purification with H2O2 3% that were used to remove lignin in palm fruit fibre waste compound to get a lot of cellulose compound. The fermentation that use in this experiment is Separate Hydrolysis Fermentation (SHF) which is hydrolysis and fermentation done separately. Hydrolysis process using H2SO4 2 M for convert cellulose become glucose then will be done by anaerob fermentation by Saccharomyces cerevisiae. The variation of agitation speed (100, 150, 200, and 250 rpm) while fermentation learned to get an optimum bioethanol percentage. The result of experiment showed that in agitation speed at 200 rpm while 96 hours can convert a bioethanol 5 % (v/v) 39,465 g/L.Keywords: Agitation speed, bioethanol, delignification, Saccharomyces cerevisiae, palm fruit fibre waste, purification, SHF (Separate Hydrolysis Fermentation)
Pengaruh Perbandingan Eceng Gondok Dan Air Terhadap pH, Alkalinitas, Dan Total Asam Volatil Pada Produksi Biohidrogen Secara Fermentasi Anaerob Tahap Asidogenesis Sari, Devita Ulfa; Ahmad, Adrianto; Muria, Sri Rezeki
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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Water hyacinth is one of aquatic weeds that commonly found in water and it grows very fast. Water hyacinth contains fermentable material, named cellulose and hemicellulose and it can be potentially used as a material for bioenergy as biohydrogen. Biohydrogen was produced from water hyacinth using microoorganism derived from cow manure by anaerobic batch fermentation. This research was originally purposed to produce biohydrogen and to determine the optimum water hyacinth to water ratio in their impacts on pH, alkalinity, and volatile fatty acid. Biohydrogen production occurred in three steps: seeding, acclimatization, and anaerobic batch fermentation. Water hyacinth to cow manure ratio was 75%: 25%. Anaerobic fermentation was carried out with variations of water hyacinth to water ratio 1:2, 1:3, 1:4 and 1:5 at initial pH 6 and mesophilic temperature. The most optimum water hyacinth to water ratio in this study was 1:2 with 3.45% biohidrogen product of total biogas.Keywords: anaerobic batch fermentation, biohydrogen, cow manure, water hyacinth
Pengaruh Waktu Inokulasi Inokulum Dalam Pembuatan Bioetanol Dari Pelepah Sawit Menggunakan Saccharomyces cerevisiae Siburian, Roy Ronald; Muria, Sri Rezeki
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
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Abstract

Palm frond is one of the solid waste generated by the activities of oil palm plantations. Indonesia is one of the countries which has the wide land areas in the world. Palm frond is lignocellulosic compound that consist of lignin, celluose, and hemicelluloce. Therefore, palm fronds can be used as raw material to produce bioethanol, production of bioethanol from palm fronds can be done through the fermentation process. The microorganisms that used in this research was Saccharomyces cerevisiae. The purpose of this research was to determine the effect of inoculation time of Saccharomyces cerevisiae on fermentation process to produce bioethanol from palm fronds. Stages of the process that done in this research include delignification, purification powder palm frond, hydrolysis and fermentation. In the fermentation process, the inoculation inoculum's time varied for 12 hours, 24 hours, 36 hours and 48 hours. On acid hydrolysis, the result of sugar concentration maximum was 54.889 g/L. The optimum time of inoculum inoculation in this research was 24 hours and the optimum bioethanol gained from fermentation proces was 3% (v/v) for 3 days.Keywords : bioethanol, fermentation, hydrolysis, inoculum, palm frond, Saccharomyces cerevisiae
Pengaruh Perbandingan Eceng Gondok Dengan Air Terhadap Penyisihan COD Dan Padatan Pada Produksi Biohidrogen Secara Fermentasi Anaerob Batch Tahap Asidogenesis Fikri, Fikri; Ahmad, Adrianto; Muria, Sri Rezeki
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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Abstract

In the last few years many researchers who made the breakthrough to create new and renewable energy. Sources of raw materials are often used are from organic waste, one of which is waste water hyacinth. Water hyacinth has a hemicellulose content that has the potential to be used as feedstock for the production of biohidrogen. Biohidrogen can be generated from the metabolism of anaerobic bacteria by fermentation. The purpose of this research is to produce biohidrogen with anaerobic batch fermentation process and determine the efficiency of COD and solids content. This study uses a bioreactor with a capacity of 15 L and variations substrate ratio is 1: 2, 1: 3, 1: 4 and 1: 5 at pH 6. The process of fermentation in this study lasted for 18 days. The parameters observed during the process that the efficiency of COD and solids removal efficiency which includes TS, TSS, TVS, and VSS. Results of the study showed that most COD removal efficiency was obtained at a ratio of substrate 1: 2 ie 76.32%, while for most solids removal efficiency is the ratio of 1: 2 to the value TS of 62.10%, amounting to 76.28% TSS, TVS VSS amounted to 54.71% and amounted to 80.62%. The products produced at the largest biohidrogen 1: 2 ratio of 3108.9 ml with biohidrogen content of 3.45%.Keywords : allowance solids, anaerobic , batch , biohydrogen , COD , water hyacinth
Analisa Pengaruh Suhu Pada Sulfate Reducing Bacteria (SRB) Yang Menyebabkan Korosi Internal Di Pipa Minyak Chevron Duri Satria, Hengky Darma; Akbar, Fajril; Muria, Sri Rezeki
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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Oil pipeline in PT. Chevron Pacific Indonesia has been periodically protected with scale inhibitor injection, scale remover, coating and pigging, however it was still found internal corrosion issues that caused by SRB (Sulfate Reducing Bacteria). In effort to control growth of SRB, the research was conducted to determine the correlation between temperature of crude oil to the growth of SRB population. Variations in crude oil samples from 20 production wells, which was the actual temperature directly measured in the field, then Bart Test was conducted in laboratory to measure SRB population in every day within 8 days. The results showed that SRB population was not found for crude oil sample from production well with temperature above 150°F, while with temperature under 150°F SRB population can be found in vary population. pH range of all samples was still stay in pH range for the SRB life.Key words: Bart Test, corrosion, crude oil, pipe, production well, SRB (Sulfate Reducing Bacteria).
Co-Authors Adella, Lufya Adli Satria Sandika Adrianto Ahmad Adrianto Ahmad Aisyah Sri Lestari Andhika Chandra Aulia Masta Bonita Esther FS Boy Jansen Roberto Manik Chairul Chairul Chairul Chairul Darmayanti, Indah David Andrio Devita Ulfa Sari, Devita Ulfa Dewi Kusuma Nurmalasari Dian Larasati Dian Larasati Diana Aprila Dina Citra Naomi Dina Citra Naomi Harianja Doni Fozla Dwi Laura Pramita Elfina Noviarni Chandra Elgina May Lestari Elvi Yenie, Elvi Erlangga, Herta Furaida EVELYN EVELYN Evelyn Evelyn Fajril Akbar Fanani, Adita Suri Fauzani, Rhanti Fauzy Isnandar Febrina Adelina Sigalingging Fikri Fikri Fikri Miftahul Shiddiq Firmanto, Firmanto fitriyanti fitriyanti Fucy Adilla Hasti Gita Aziza Salis, Gita Aziza Hasti, Fucy Adilla Hengky Darma Satria, Hengky Darma Hilmiyati Hilmiyati Ikhsan ' Fajrin Indah Darmayanti Darmayanti Indah Kartika Zulfa Indah Kartika Zulfa Indra Purnama Insani, Suciati Dwi Irma Damayanti Isabella Amalia Denisa Putri Jeckson, Edie Jelizanur Jelizanur Jessar Hendrianto Juarsa, Tri Komalasari Komalasari Lely Rahmawati Saragih Lidya Anggraini M. Rafi Yunanda Masriza, Maya Masroah Tuljannah Mastiar Krisdayanti Sinaga Maya Ratna Sari Mayang Sari Meilano Ashari Akbar Meisy Dhyta Amelia Meisy Dhyta Amelia Meliana Dewi Mesy Susri Darsi Muhammad Rivai Mustika Chairani Mustika Chairani Mustika Chairani Mutia Nurrahmadhani Nova Diyana Nurhanifah Novebriantika Novebriantika Novira, Tria Bela Novriandi, Rizky Nur Irfana Mardiyah Nurul Annisa Nuryanti, Lidya Oding Sitorus Okky Rizky Sinaga Padil Padil Putri, Aulia Dewi Putri, Bella Nadiah Rahani Rahani Rendy Hidayat Resna Rauda Pratiwi Resna Rauda Putri Resti Ossi P Riko Naldo Saputra Rizkya Ramadhani Rohaya, Rohaya Roin Nuretha Roy Ronald Siburian, Roy Ronald Said Zul Amraini Sakinah Rhajani Sally Mandari Sandy Juliana Sari Santoso Nugroho Sari, Nurriya Mayang Sheilviana Angela Shindi Unada Shinta Elystia Silvia Reni Yenti Sitinjak, Jufri Suanto Sri Armita Sari Sri Helianty Sri Indira Puspa Pertiwi Sri Indira Puspa Pertiwi Syelvia Putri Utami Tantri Wilinda Julia Tasbieh, Hayatrie Tri Lusi Lisa Dila Tria Bela Novira Vonny Meidina Rizani Vonny Meidina Rizani Wenny Andini Wulandari, Zarah Ayu Yelmida Azis Yolanda Amalia Yuliyana Rahmawati Zahra Nadia Elysahaq Zul Fadly Khaira