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Sri Rezeki Muria
Jurusan Teknik Kimia Fakultas Teknik, Universitas Riau
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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
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

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.
PENYISIHAN NITROGEN TOTAL DALAM LIMBAH CAIR HOTEL DENGAN SISTEM MOVING BED BIOFILM REACTOR MENGGUNAKAN Chlorella sp. Chairani, Mustika; Elystia, Shinta; Muria, Sri Rezeki
JST (Jurnal Sains dan Teknologi) Vol 10, No 1 (2021)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jst-undiksha.v10i1.24131

Abstract

Limbah cair hotel dapat dimanfaatkan oleh mikroalga Chlorella sp. sebagai sumber nutrisi bagi pertumbuhannya sehingga dapat menurunkan kadar nitrogen total. Salah satu proses pengolahan limbah yang dapat meningkatkan pertumbuhan mikroalga yaitu Moving Bed Biofilm Reactor. Pada prinsipnya, Moving Bed Biofilm Reactor merupakan pertumbuhan suspensi yang ditingkatkan dengan menambahkan biocarrier di dalam reaktor sebagai tempat perkembangbiakan mikroorganisme, sehingga terjadi dua proses pengolahan yakni pertumbuhan suspensi dan pertumbuhan melekat. Penelitian ini mempelajari pengaruh volume pengisian biocarrier Kaldnes 1 (K1) terhadap penurunan kadar nitrogen total dalam limbah cair hotel. Penelitian ini dilakukan secara batch dengan perlakuan volume pengisian Kaldnes 1 (K1) terhadap penurunan kadar nitrogen total dalam limbah cair hotel dengan 4 level yang berbeda, yaitu 0% (tanpa penambahan Kaldnes 1 (K1)), volume pengisian Kaldnes 1 (K1) sebanyak 10%, 20%, 30% (volume limbah). Proses pengolahan dilakukan selama 5 hari dengan penyinaran cahaya matahari dalam MBBR. Perlakuan dengan volume pengisian Kaldnes 1 (K1) 20% mampu menyisihkan nitrogen total dengan efisiensi penyisihan sebesar 91,96% pada waktu kontak terbaik yaitu hari ke-5.
SISTEM KULTUR SEMIKONTINU DALAM PRODUKSI LIPID DAN PENYISIHAN COD MENGGUNAKAN KONSORSIUM MIKROALGA DARI PALM OIL MILL EFFLUENT (POME) Elystia, Shinta; Novira, Tria Bela; Muria, Sri Rezeki
JST (Jurnal Sains dan Teknologi) Vol 10, No 1 (2021)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jst-undiksha.v10i1.24099

Abstract

Penggunaan energi sebagian besar masih berasal dari sumber energi tidak terbarukan yang jumlahnya semakin berkurang. Produksi biofuel dari kadar lipid dalam biomassa konsorsium mikroalga dapat menjadi salah satu energi alternatif dalam menghasilkan energi terbarukan. Palm Oil Mill Effluent (POME) mengandung bahan organik yang dapat menjadi sumber nutrisi untuk pertumbuhan konsorsium mikroalga seiring terjadinya penyisihan COD pada air limbah. Produktivitas biomassa dan kadar lipid akan meningkat setelah dilakukan pergantian limbah sebagai penambahan nutrisi pada medium kultur. Penelitian ini bertujuan untuk mengetahui pertumbuhan konsorsium mikroalga, kadar lipid yang dihasilkan, serta efisiensi penyisihan COD pada POME. Kultivasi dilakukan dengan mengganti setengah volume kultur dengan fresh POME pada periode pergantian limbah setiap 3, 4, dan 6 hari selama 12 hari kultivasi. Hasil penelitian menunjukkan kondisi kultivasi terbaik terdapat pada pergantian limbah setiap 6 hari dengan kerapatan sel mikroalga 1,01 x 107 sel/ml, kadar lipid 19,33%, serta efisiensi penyisihan COD 81,25%. Dari hasil penelitian dapat disimpulkan bahwa sistem semikontinu dengan adanya pergantian limbah dapat meningkatkan kerapatan sel mikroalga karena nutrisi dalam medium kultur terpenuhi, sehingga kadar lipid dan efisiensi penyisihan COD yang dihasilkan akan semakin meningkat. Kata Kunci :     Konsorsium Mikroalga, Palm Oil Mill Effluent (POME), Periode  Pergantian Limbah, Kadar Lipid, COD
Produksi Lipid Dari Mikroalga Yang Tumbuh Di Air Gambut Dengan Penambahan Nutrisi BG-11 Putri, Bella Nadiah; Elystia, Shinta; Muria, Sri Rezeki
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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Abstract

One innovation in making biodiesel is from microalgae. The use of microalgae as a source of raw materials for biodiesel production requires biomass and high lipid content. The lipid content of microalgae can be converted into biodiesel. The purpose of this study is to look at the effect of the addition of micronutrients on the growth rate and lipid content of indigenous microalgae in peat water. Indigen microalgae as much as 50 mL were cultivated in 450 mL of peat water and BG-11 nutrients at a dose (0 mL / L, 0.5 mL / L, 1 mL / L and 1.5 mL / L) lasted 13 days. The results of the study, the highest cell count of 10.08 x 106 cells / mL and the highest lipid content of 34.8% in the addition of BG-11 nutrients by 1 mL / L. Keywords: Nutrition BG-11, Peat Water, Microalgae Indigeneous, Lipids
Pertumbuhan Konsorsium Mikroalga Dalam Palm Oil Mill Effluent (POME) Dengan Sistem Kultur Semikontinu Novira, Tria Bela; Elystia, Shinta; Muria, Sri Rezeki
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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Abstract

The growing palm oil industry in Indonesia is causing an increase in Palm Oil Mill Effluent (POME) generated. The organic material contained in POME can be a nutrient source for microalgae growth. The growth of the microalgae consortium will increase after the replacement as an addition of nutrients to the culture medium. The aim of this research to determine the growth rate microalgae consortium in POME as a culture medium. The research was conducted in semicontinuous system by replacing half volume of culture with fresh POME in period every 3 days, 4 days, and 6 days for 12 days of cultivation. The result showed the best cultivation conditions was every 6 days replacement period which spesific growth rate 0,212/day on the 12th day. Keywords: Microalgae consortium, Palm Oil Mill Effluent (POME), Replacement period
Produksi Lipid Oleh Mikroalga Indigeneous Pada Media Air Gambut Dengan Penambahan Medium Basal Bold Fauzani, Rhanti; Elystia, Shinta; Muria, Sri Rezeki
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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Abstract

Peatlands are one type of wetland ecosystem. Indonesia's peat land area is about 14.95 million hectares spread across the island of Sumatra, Kalimantan. Microalgae are photosynthetic microorganisms capable of converting sunlight, water and carbon dioxide into biomass. In microalgae biomass contains beneficial essential ingredients, such as proteins, carbohydrates, lipids and nucleic acids. The microalgae used in this study were the Indigeneous microalgae from peat water. The purpose of this study is to determine the influence of the best variation in the addition of Basal Bold Medium (MBB) to the rate of cell growth and lipid production in the cultivation of microalgae indigeneous of peat water. The medium used for the cultivation of microalgae should be enriched with nutrients that include the nutrient elements of macronutrients (C, H, N, S, P, K, Mg and Ca) and micronutrient nutrients (Fe, Cu, Mn, Zn, Mo, V and Si). The results showed the best conditions gained in the addition of the medium of Basal Bold 1 ml/L, where the lipid content obtained is 29.44%, and the growth rate of cell/ML 825 x 104. Keywords: peat water, lipids, cellular growth rate, Basal Bold Medium
Produksi Bioetanol Dari Mikroalga Chlorella sp. Dengan Variasi Konsentrasi H2SO4 Wulandari, Zarah Ayu; Muria, Sri Rezeki; Chairul, Chairul
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

Microalgae is one type of raw material that has the potential to be used as bioethanol, because it has the ability to grow in a relatively short time, can be cultivated in a limited area, and several types of microalgae have a high carbohydrate content. The purpose of this study was to determine the effect of variations in the concentration of H2SO4 on bioethanol produced. The substrate used in the fermentation process in this study was microalgae Chlorella sp. obtained from microalgae cultivation by fed-batch in oil palm liquid waste media. The preliminary stage carried out in this research is the preparation of the microalgae raw material Chlorella sp. to form a powder. Microalgae powder was used as a substrate and hydrolyzed with variations in the concentration of H2SO4 3%, 4%, and 5%. The hydrolysis solution was then fermented using Saccaromyces cerevisiae with a concentration of 10% Saccaromyces cerevisiae inoculum volume. The results showed that 4% (v/v) H2SO4 produced the highest glucose concentration, which was 37,87 mg/mL with the resulting bioethanol concentration of 15,78 mg/mL. Keywords: bioethanol, H2SO4, microalgae, Saccaromyces cerevisiae
Produksi Bioetanol Dari Reject Of Stock Preparation Pada Proses Pembuatan Kertas Dengan Proses Hidrolisis Dan Fermentasi Sitinjak, Jufri Suanto; Chairul, Chairul; Muria, Sri Rezeki
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

Indonesia is one of the largest paper producing and exporting countries in the world. Along with the increase in paper production, solid waste is generated from the reject of stock preparation. These reject of stock preparation has the potential to produce bioethanol because it contains a high cellulose content of 85,53% and hemicellulose 3,88% which is able to support the provision of renewable and environmental friendly fuels. The purpose of this study was to obtain the concentration of sulfuric acid (H2SO4) and hydrolysis temperature that can produce the highest sugar concentration in the reject of stock preparation hydrolysis process into sugar; to get the best pH value and fermentation time in the fermentation process by using Saccharomyces cerevisiae; and also get the percent yield of fermented sugar into bioethanol. The stages in this research is pretreatment of samples refined with a 1000 micron sieve (18 mesh), then the hydrolysis process with various concentrations of sulfuric acid (H2SO4) 6, 8, 10, 12% (v/v) and temperatures of 120oC, 130oC and 140oC for 30 minutes. Finally, the fermentation process was carried out with a variation of pH 4.5; 5; and 5,5 and fermentation time of 24, 48, 72 and 96 time. Based on the research results, the highest total sugar concentration of 9,8244 g/l was obtained in the hydrolysis process with a concentration of 12% (v/v) H2SO4 and a temperature of 140oC. The highest bioethanol concentration of 5.83 g/l was obtained in the fermentation process with the best pH 4.5 and fermentation time of 72 hours with the percent yield obtained at 85.88% (0.44 gram bioethanol / gram sugar). Keywords : Bioethanol, fermentation, hydrolysis, reject of stock preparation, Saccharomyces cerevisiae
Pengaruh Variasi Diameter Media Untuk Penyisihan Beban Polutan Limbah Cair Domestik Dalam Moving Bed Biofilm Reactor (MBBR) Dengan Memanfaatkan Biocarrier Limbah Sedotan Plastik Insani, Suciati Dwi; Elystia, Shinta; Muria, Sri Rezeki
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

Domestic waste water is one of the main cause of river pollution. Grey water gives about 75-90% the pollution of surface water. The treatment that can be done is to use biomass, one of which is microalgae Chlorella sp. In this Study, the addition of biocarriers made from plastic straws as a medium for attaching microorganism using MBBR process. The variation is diameter of biocarrier that is 0,5 inch, ¾ inch, and 1inch which inserted into the reactor with working volume of 3 liters, air supply 4 liters/minute, the volume of biocarrier is 30% of the reactor volume, and the contact time is 0,1,3,5,7 days. The result of the study, obtained the best removal for 67.3% COD, 83.27% TSS on the reactor filled with biocarrier 0.5 inch on day 7. It shows that the smaller diameter of the growing media produces the highest efficiency.Keywords : MBBR, Plastic Straw Biocarrier, Chlorella sp., Domestic Waste Water,Ammonia
Penyisihan Polutan pada Palm Oil Mill Effluent (POME) Menggunakan Konsorsium Mikroalga-Bakteri dengan Sistem High Rate Algae Reactor (HRAR) Shinta Elystia; Vonny Meidina Rizani; Sri Rezeki Muria
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 7 No. 1 (2021): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v7i1.213

Abstract

Palm oil mills in addition to producing crude palm oil also produce by-products in the form of Palm Oil Mill Effluent (POME). POME contains high amounts of organic ingredients and pollutants. One method that can be applied to treat POME is the High Rate Algae Reactor (HRAR) System. The HRAR system uses microalgae-bacterial consortium that has better performance in removing pollutants in POME and increasing the growth of microorganisms. This research aim by determining the effect of microalgae suspension concentration in the HRAR system towards the removal efficiency of Chemical Oxygen Demand (COD) and total nitrogen. The research was conducted in batch in the HRAR system that equipped with a paddle wheel, by variations of microalgae suspension concentration as 0; 10; 15; 20; and 25 (% v/v). The research was carried out for 7 days and used the sun as a source of light. Based on the research results, 25% of microalgae suspension concentration has the highest microalgae cell density, was 6,34 x 106 cells/mL and showed the best removal efficiency of COD and total nitrogen, were 78.79% and 80.37%.  
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