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Sri Rezeki Muria
Jurusan Teknik Kimia Fakultas Teknik, Universitas Riau
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Pengaruh Penambahan Plant Growth Promoting Bacteria (Azospirillum sp.) Pada Kultivasi Chlorella sp. Dalam Penyisihan COD Di Limbah Cair Tahu Mesy Susri Darsi; Shinta Elystia; Sri Rezeki Muria
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

Chlorella sp. can be used as a solution to tofu liquid waste problems. Therefore, it is important to develop this microalgae cultivation technique. One of them is by using the Azospirillum sp. which can support growth and can increase the efficiency of removal from tofu liquid waste. In this research, the measurement of the growth rate of the microalgae Chlorella sp. and COD removal. The research conducted in batches with the addition of bacteria at 5 different levels, namely 0 (without the addition of Azospirillum sp.), the addition of Azospirillum sp. as many as 0.25; 0.50; 0.75; and 1 (% v / v). Processing is carried out for 13 days by irradiating sunlight in a photobioreactor. Based on the research results, the highest growth rate of Chlorella sp. and the best COD removal efficiency of 0.17/ day and 86.84% were obtained from the addition of Azospirillum sp. 1% v/v on the thirteenth day. Keywords: Azospirillum sp., Chlorella sp., COD, Contact Time, Tofu Liquid Waste
Penyisihan TSS pada Air Limbah Sawit Di Dalam Flat-Fotobioreaktor Menggunakan Chlorella sp. Yang Diimmobilisasi Lidya Anggraini; Shinta Elystia; Sri Rezeki Muria
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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High production of palm oil contributes to the high waste water produced. This is because the high water consumption during the production process is about 5 m3 per processing of one ton of fruit palm. The palm oil mill is an important concern because it contains organic materials, tannin compounds and high soluble solids. So it takes an environmentally friendly processing to eliminate pollutants so as not to cause environmental damage. Therefore, in this research, the effluent treatment using Chlorella sp. which is immobilized to exclude TSS parameters. Cell immobilization process is done by using calcium alginate as a polymer to form beads. In order to obtain stable and high efficiency beads, variations of Na-alginate concentration (4%, 6%, 8%) and contact time (1, 3, 5, 7 days) are obtained. Based on the result of the research, it is found that the most stable bead is made of 8% Na-alginate with a removal efficiency of 35.3-76% within seven days.Keywords: Chlorella sp, COD, Contact Time, Na-alginate, Palm Oil Mill Effluent, Total Nitrogen, Total Suspended Solid.
Pemanfaatan Chlorella sp. Untuk Menyisihkan Nitrogen Total Pada POME Dengan Variasi Laju Alir Gas CO2 Menggunakan Flat-Photobioreactor Meisy Dhyta Amelia; Shinta Elystia; Sri Rezeki Muria
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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POME contains organic matter that can be utilized by microalgae Chlorella sp. Organic material is used as a source of nutrition for growth so as to reduce the content of pollutants in POME. In this research measurements of the growth rate of microalgae Chlorella sp. cells and removal of Total Nitrogen. The research was conducted in batch using flatphotobioreactors with variations in the CO2 gas flow rate was 0,4 L/min; 0,6 L/min; and 0,8 L/min and contact time 0, 1, 3, 5, and 7 days. Based on the results of the research, the highest growth rate of Chlorella sp. cells and the best efficiency of total nitrogen removal were at the CO2 gas flow rate was 0,6 L/min on the seventh day was 0.381/day and 84.4% Keywords: Chlorella sp., POME, CO2 Gas Flow Rate, Flat-Photobioreactor, CO2 absorbed
Biokonversi Serat Buah Sawit Menjadi Bioetanol Dengan Variabel Konsentrasi Saccharomyces Cerevisiae Masroah Tuljannah; Adrianto Ahmad; Sri Rezeki Muria
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Indonesia was the largest producer and exporter of palm oil in the world. As the plantation area expands, the increasing number of palm oil process industries results in large amounts of waste product. The biggest waste was of palm fruit fiber (fiber cake). It was known that 1 ton of fresh fruit bunches (FFB) of palm oil will produced 13% or 130 kg of fiber cake. By look at the potential that can be generated from the fruit fiber of palm oil (fiber cake) coming from the CPO process industry has a value that to use as the main ingredients in the making of alternative bioethanol fuel. The purposes of this study were to synthesize bioethanol from the raw material of palm fruit fibers, to determine the influence of the amount of Saccharomyces cerevisiae weight on bioethanol, and to determine the optimum time of bioethanol production from the raw material of palm fruit fibers by separation hydrolysis and fermentation (SHF) method. The stages of this study were delignification used KOH solution obtained from the extract of Palm Empty Cluster Ash, then the purification process using 3% H2O2 solution. Then the hydrolysis process using 2 M H2SO4 for 3 hours at 100°C. The last process was fermentation. In the fermentation process, variations of Saccharomyces cerevisiae concentration were 4, 6, 8 and 10 gr/L and fermentation time were 24, 48, 72, 96, and 120 hours. In acid hydrolysis, a maximum sugar concentration of 131 gr/L was produced. The research results show that the best Saccharomyces cerevisiae concentration was 4 gr/L at the best fermentation time of 96 hours with the obtained bioethanol content of 7% or 55.25 g/L.Keywords: bioethanol, fermentation, hydrolysis, palm fruit fiber, Saccharomyces cerevisiae
Pengaruh Volume Inokulum Pada Produksi Bioetanol Dari Limbah Kulit Nanas Menggunakan Zymomonas Mobilis Dengan Metode Solid State Fermentation (SSF) Ikhsan ' Fajrin; Said Zul Amraini; 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

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Increasing of world energy consumption and depleted of availability fossil fuel caused the development of energy goes thru renewable fuel and environment-friendly. Waste of agriculture such as pineapple peel can be utilized as raw material to produce bioethanol through fermentation. The aim of this research  are to know the process of bioethanol production through solid state fermentation (SSF) from pineapple peel and to determine the yield of bioethanol produced using Zymomonas mobilis with various inoculum volume  8, 9, 10, 11, and 12 % and various fermentation time 6, 12, 18, 24, 30 and 36 hours. Fermentation process conducted using Zymomonas mobilis because it has several advantages such as resistant to high concentration of ethanol,more tolerant to temperature and low pH. The result shows that the higher inoculum volume that inoculated to substrate the higher ethanol produced. The highest yield of bioethanol is 21%v at inoculum volume 10%. The optimum fermentation time obtained is 24 hours to all various inoculum volume Keyword : Bioetanol; Fermentasi; Kulit Nanas; Solid State Fermentation (SSF); Zymomonas Mobilis
Pengaruh Interaksi Mikroalga Chlorella Sp. Dan Bakteri Bioprisma Terhadap Penurunan Kadar Nitrogen Total Pada Medium Limbah Cair Tahu Lely Rahmawati Saragih; Shinta Elystia; Sri Rezeki Muria
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

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Tofu liquid waste can be utilized by microalgae Chlorella sp. as a source of nutrition for its growth.Utilization of nutrients by Chlorella sp. can reduce total nitrogen of tofu liquid waste. The purposes of this research is to know the interaction between a complex microorganism contained in Bioprisma as a decomposer agent with the addition of photosynthetic microalgae Chlorella sp. as an oxygen producer in reducing total nitrogen loads of tofu liquid waste. The study conducted in batches with the bacteria addition treatment in 5 different levels, that is 0 (without the addition of bacteria), addition of bacteria as many as 0,25; 0,50; 0,75 and 1 (% v/v). The processing is carried out for 13 days with solar irradiation in the photobioreactor. The treatment with the addition of 1% was able to reduce total Nitrogen with 71,89% removal efficiency at the best-removing detention time, happened in days-13.Keywords: Chlorella sp., Bioprisma, Tofu Liquid Waste,Total Nitrogen, Contact Time.
Pengaruh Penambahan Konsentrasi Saccaromyces Cerevisiae Terhadap Produksi Bioetanol Dari Limbah Biomassa Pelepah Sawit Maya Ratna Sari; David Andrio; Sri Rezeki Muria
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

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Oil palm frond juice (OPFJ) has the potential as a promising bioethanol forming substrate because of the simple high sugar composition with a total COD content of 36.364 g / L. In this study, the microorganisms used were S. cerevisiae, the best fungi for bioethanol fermentation This study aims to determine the effect of inoculum concentration of S. cerevisae on the fermentation of the oil palm frond juice (OPFJ) for the process of bioethanol formation, allowance for COD, formation for Volatile Suspended Solid (VSS).The study was conducted using 250 ml erlenmeyer with a working volume of 150 ml with a ratio of S.cerevisae as much as 10%; 20%; 30% and 40% (v/v) with a OPFJ substrate content; 90%; 80%: 70% and 60% (v/v) at 100 rpm for 72 hours. Based on the results of the study, the highest efficiency of COD dissolved as a 50%, respectively. VSS growth is 168 m/L/hour with efficiency of growth is 41% through Reactor R1 (S.cerevisiae: Substrate = 30:70). It produces the highest bioethanol formation with the 10 % addition of S. cerevisiae (v/v) of 25,42 mg/L with the efficiency of bioethanol formation is 83% with stirring 100 rpm at 48 hours.Keywords : Fermentation, Bioethanol, Juice Oil Palm Fronds, Saccaromyces cerevisiae
Produksi Bioetanol Dari Sari Kulit Nenas Menggunakan Yeast Saccharomyces Cerevisiae Dengan Variasi Penambahan Tween 80 Dan Sumber Nitrogen Sheilviana Angela; Sri Rezeki Muria; Elvi Yenie
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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Abstract

One material that has potential to be used as raw material for bioethanol is the pineapple peel. Pineapple peel from the pineapple is one of the biggest agricultural waste in Indonesia, particulary in the area of Riau. Pineapple peel can be used as raw material for bioethanol production because contain much fibers, carbohydrates and glucose. This study aimed to obtain the highest amount of bioethanol from fermented juice pineapple peel using the yeast Saccharomyces cerevisiae by varying the concentration of tween 80 and comparing the nitrogen sources such as peptone and yeast extract and fermentation time is 24, 48 , 72, 96, and 120 hours. Measurement of bioethanol content using alcoholmeter. From the research results, obtained the highest bioethanol content of 9% v/v or 71,04 mg/ml in the additions at 20 ml tween 80 and a nitrogen source such as peptone and the fermentation time 96 hours.Keywords: Bioethanol, Pineapple Peel, Pepton, Saccharomyces cerevisiae, Tween 80, Yeast Extract
Alternatif Bahan Baku Bioetanol Dari Mikroalga Chlorella Pyrenoidosa Yang Dikultivasi Dengan Variasi Intensitas Cahaya Dan Konsentrasi Palm Oil Mill Effluent (POME) Yuliyana Rahmawati; Shinta Elystia; Sri Rezeki Muria
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

Develpoment of a dynamic world energy consumption within the limitation of fossil energy reserve as well as the awareness on the environmental conservation evoke the increase of interest on a renewable energy. Chlorella pyrenoidosa is commonly recognized as in interesting species for bioethanol production due to its the carbohydrate content. Palm Oil Mill Effluent (POME) is a potential medium for microalgae to growth because it contains high nutrient sources. This research aimed to study the effect of POME concentration and light intensity to carbohydrate produced of microalgae C. pyrenoidosa. Microalgae cultivated in POME : Medium Dahril Solution (0:100; 25:75; 50:50; 75:25; 100:0) with light intensity (3000, 4000 and 5000 lux). The result showed the highest carbohydrate concentration was 289,69 mg/L at cultivation condition of POME : Medium Dahril Solution 50:50 with the light intensity 3000 lux.Keywords: Chlorella pyrenoidosa, Palm Oil Mill Effluent (POME), Dahril Solution Medium, Carbohydrates
Pemanfaatan Biocarrier Dari Limbah Sedotan Plastik Sebagai Media Tumbuh Chlorella sp. Dalam Moving Bed Biofilm Reactor (MBBR) Untuk Penyisihan Bahan Polutan Dalam Limbah Cair Domestik Isabella Amalia Denisa Putri; Shinta Elystia; Sri Rezeki Muria
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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Moving Bed Biofilm Reactor (MBBR) is a biological processing technology with two microorganism culture processes, namely inherent growth and suspended growth. Microalgae Chlorella sp. is one microorganism that can be used in biological processing. Microalgae can stick to the surface of the media because microalgae produce extracellular soluble Algae Products (SAP) consisting of proteins and polysaccharides that are useful in the process of attaching microalgae to the surface of the bio carrier media. This study aims to set aside the parameter of ammonia in domestic wastewater. In this study, the media used were made of spiral hoses and plastic straws with a length of 10 mm and a diameter of 12.7 mm. Processing with MBBR uses variations in media volume that is 15%, 30%, and 45% and with variations in contact time 0, 1, 3, 5, and 7 days. The results showed the highest removal efficiency of ammonia in 30% media volume variations on the 7th day respectively 89.82%.Keywords: Biocarrier, Chlorella sp., Domestic Liquid Waste, MBBR
Co-Authors Adella, Lufya Adli Satria Sandika Adrianto Ahmad Adrianto Ahmad Aisyah Sri Lestari Andhika Chandra Artha, Ulfa Dwi Aulia Masta Bahruddin Bahruddin Bahruddin 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 Miftahul Shiddiq Firmanto, Firmanto fitriyanti fitriyanti Gita Aziza Salis, Gita Aziza Hamzah, Nirwana Hasti, Fucy Adilla Hasti, Fucy Adilla Hengky Darma Satria, Hengky Darma Hilmiyati Hilmiyati Ida Zahrina Ikhsan ' Fajrin Indah Darmayanti Darmayanti Indah Kartika Zulfa Indah Kartika Zulfa Indra Purnama Insani, Suciati Dwi Irdoni HS Irma Damayanti Isabella Amalia Denisa Putri Jeckson, Edie Jelizanur Jelizanur Jessar Hendrianto Juarsa, Tri Khairat Komalasari Komalasari Larasati, Dian Lely Rahmawati Saragih Lidya Anggraini Lita Darmayanti 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 Mutia Nurrahmadhani Niken Triani Klaway Reza Nova Diyana Nurhanifah Nova Ramadhani Farnas Novebriantika Novebriantika Novira, Tria Bela Novriandi, Rizky Nur Irfana Mardiyah Nurul Annisa Nuryanti, Lidya Oding Sitorus Okky Rizky Sinaga Padil Padil Purwoko, Agus 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 Rozanna Sri Irianty 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 SUSANTO, RENO Syelvia Putri Utami Tantri Wilinda Julia Tasbieh, Hayatrie Tri Lusi Lisa Dila Vonny Meidina Rizani Vonny Meidina Rizani Wenny Andini Wulandari, Zarah Ayu Yelmida Azis Yolanda Amalia Yuliyana Rahmawati Zahra Nadia Elysahaq Zuchra Helwani Zul Fadly Khaira Zuqni Meldha