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All Journal Jurnal Sains dan Teknologi Jurnal Sains dan Teknologi Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Seminar Nasional Teknik Kimia Kejuangan Jurnal Dampak Jurnal Litbang Industri Jurnal Sains & Teknologi Lingkungan Jurnal Sains Teknologi dan Lingkungan (JSTL) Jukung (Jurnal Teknik Lingkungan) Chemistry Indonesian Journal of Chemical Research Jurnal Teknologi Pertanian Andalas Al-Ard: Jurnal Teknik Lingkungan Journal of Bioprocess Chemical and Environmental Engineering Science Dinamika Lingkungan Indonesia Bhakti Nagori (Jurnal Pengabdian kepada Masyarakat) BATOBO: Jurnal Pengabdian Kepada Masyarakat
Sri Rezeki Muria
Jurusan Teknik Kimia Fakultas Teknik, Universitas Riau
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Public Health Other

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Pengaruh kombinasi Fe dan Co terhadap pertumbuhan Chlorella sp. dan penyisihan COD limbah cair minyak sawit Shinta Elystia; Indah Kartika Zulfa; Sri Rezeki Muria
Dinamika Lingkungan Indonesia Vol 7, No 2 (2020)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (387.839 KB) | DOI: 10.31258/dli.7.2.p.95-101

Abstract

Palm oil mill effluent contains pollutants and has high content of organic matter. The treatment process of palm oil mill effluent generally with open pond system that requires extensive land and a long contact time. To reduce the number of ponds needed in the process of palm oil mill effluent, microalgae Chlorella sp. by using palm mill effluent which contains organic material as a source of nutrition for microalgae cultivation media Chlorella sp. to improve the efficiency of COD removal in palm oil mill effluent. In this research, variations of the concentration of Fe and Co micronutrients were combined with variations concentrations of Fe (0.3; 0.5 and 0.7) mg/L and Co (1 and 2) mg/L in flat-photobioreactors were carried out for 7 days with lighting by using sunlight. The results showed that at a combination of 0.5 mg/L Fe + 0.2 mg/L Co, the highest microalgae cell growth was 6 x 106 cell/ml and the highest removal efficiency of COD was 83.3%.
Kultivasi Mikroalga Chlorella sp. Secara Fed-Batch Menggunakan Limbah Cair Tahu Untuk Produksi Lipid Sri Rezeki Muria; Fikri Miftahul Shiddiq; Irma Damayanti; Indra Purnama
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 4 No 1 (2023): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, UNRI

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Abstract

Microalga is single cell organism that can live by photosynthesize resulting biomass and other secondary product such as protein, carbohydrate, and lipid by utilizing nutrients in wastewater. This study aims to get the data about the effect of additions of tofu liquid waste to the growth and increase of lipid content in the microalga that cultivated in tofu liquid waste media. Microalga were cultivated by variations in tofu liquid waste adding. The variations are 0,45 liter in every day, 0,9 liter in every two days, and 1,35 liter in every three days. Microalga growth were measured by an object glass, the amount of cell density in every square field calculated using tomacytometer with hand counter where observed under optical microscope. Total lipid content were gained by employ Bligh-dyer methode. The results of this study show the highest specific grow rate of Chlorella sp is 0,08692/day accounted from tofu liquid waste addition in every three days. The highest lipid content is 40,88 % which gained from tofu liquid waste addition in every day. Under unfavourable condition microalga will accumulate more lipid so that increase it lipid content. The highest chemical oxygen demand (COD) removal is 575 mg/mL.
Fermentasi Fermentasi Asam Asetat Dari Nira Nipah Menggunakan Acetobacter Pasteurianus Dengan Variasi Waktu Dan pH Awal Fermentasi Tantri Wilinda Julia; Chairul Chairul; 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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Abstract

Indonesia has 23% of world’s mangrove ecosystems, add up to 3.489.140,68 hectares with nipah plants (Nypa Fruticans) as one of the largest. Nipah sap is one of the products obtained from young fruit bunches with high sugar content that providing an opportunity as an alternative raw material for the production of acetic acid. Acetic acid can be produced from sugary materials through a fermentation process using microorganisms. This study was taken up to evaluate the role of some paramaters like initial pH and incubation period on acetic acid production from nipah sap by two simultaneous stages of fermentation using Saccharomyces cerevisiae and Acetobacter pasteurianus. Nipah sap after acid hydrolysis using 3 g/L oxalid acid were used as substrate for bio-ethanol production. Sugar contents of 417,71 g/L, temperature of 30°C, initial pH 4,5 and incubation period of 24 hours, inoculum of S.cerevisiae 10% (v/v) produced 10% (v/v) bio-ethanol. This medium were used as substrate to produced acetic acid using A.pasteurianus. Initial pH variation of 5, 5,5 and 6 and incubation period of 1,3 5, 7 and 9 days. The highest concentration of acetic acid obtained is 31,046 g/L and 30,56 %yield on the 5th day of acetic acid fermentation at the initial pH fermentation 5,5.Keywords: acetic acid, Acetobacter pasterian, fermentation, initial pH, nypa sap.
Kultivasi Mikroalga Chlorella Sp. Secara Fed-Batch Dalam Media POME Sebagai Bahan Baku Bioetanol Dina Citra Naomi Harianja; Sri Rezeki Muria; Chairul Chairul
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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Abstract

Bioethanol is an environmental friendly biofuel, one of the raw materials is microalgae, because microalgae can produce carbohydrates which can be used for fermentation in the process of bioethanol production. In this research the microalgae Chlorella sp. cultivated in the palm oil waste media (POME) in a fed-batch culture. The purpose of this researchare study the effect of fed POME media in fed-batch culture on the growth of Chlorella sp., to calculate the specific growth rate of Chlorella sp. microalgae, determine the effect of fed-batch processes on the reduction of POME COD and carbohydrate content of Chlorella sp. Microalgae Chlorella sp. 600 ml with 4.8 x 106 cell density were cultivated for 12 days using bioreactors with addition of waste variations 0.45 L / day, 0.9 L / 2 days and 1.35 L / 3 days, and batch process with addition of 5.4 wastes L. POME COD analysis is carried out at the beginning and end of cultivation, cell density and carbohydrate calculation is performed at each waste addition. The best results were obtained with variations in the addition of POME 0.9 L every 2 days, POME COD of 750 mg / L, and density cel 4.432 x 106 with carbohydrates 190,51 mg / L. Keywords : Chlorella sp., fed-batch cultivation, POME, carbohydrate.
Pengaruh Kondisi Gelap Terang Terhadap Biodegradasi Styrofoam Menggunakan Larva Tenebrio Molitor Jessar Hendrianto; Elvi Yenie; 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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Abstract

Styrofoam or polystyrene (PS) can make block water channel, greenhouse effect and make a big contribution in global warming, interfering with a various equilibrium environmental and health components. One of styrofoam waste treatment is a biodegradation by utilizing mealworm (Tenebrio molitor larva). This research aims to calculate the value of degradation (%biodegradation) efficiency with additional nutrients and %Survival Rate of larva. In this study variations we make comparation in dark and light conditions, The result highest of %biodegradation Styrofoam is a Styrofoam dark condition with 57% value and lowest value is a Styrofoam in light condition with 51%. While for the highest %SR dark condition is 65% and light condition with 75%.Key Word : Styrofoam, Survival Rate, Biodegradation, Tenebrio molitor Larva.
Pemanfaatan mikroalga Chlorella sp. untuk produksi lipid menggunakan media air lindi TPA Muara Fajar Pekanbaru secara fed-batch Sri Rezeki Muria; Ida Zahrina; Niken Triani Klaway Reza; Nova Ramadhani Farnas
Jurnal Litbang Industri Vol 14, No 1 (2024)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24960/jli.v14i1.8393.51-58

Abstract

Chlorella sp. merupakan mikroorganisme yang membutuhkan nutrien untuk tumbuh sehingga menghasilkan lipid sebagai biomassa. Kebutuhan nutrien Chlorella sp. dapat dipenuhi dengan melakukan kultivasi menggunakan air lindi. Air lindi terdiri dari karbon, nitrogen, dan fosfor yang diperlukan untuk pertumbuhan Chlorella sp. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan volume air lindi terhadap pertumbuhan dan lipid yang dihasilkan dari kultivasi Chlorella sp. menggunakan air lindi. Chlorella sp. dikultivasi dengan variasi penambahan volume air lindi yang ditambahkan per waktu, yaitu 375 mL/1 hari, 750 mL/2 hari, dan 1125 mL/3 hari. Pengukuran pH dan suhu dilakukan setiap hari menggunakan pH meter dan termometer selama 12 hari. Pertumbuhan sel Chlorella sp. diamati menggunakan mikroskop cahaya. Lipid diekstraksi menggunakan metode Bligh-Dyer. Nilai COD dihitung menggunakan analisis titrimetri. pH yang diperoleh sebesar 7-8,35 dengan suhu yang diperoleh sebesar 27oC-30oC. Kepadatan sel tertinggi diperoleh pada penambahan volume air lindi/3 hari sebesar 4,78 x 106 sel/mL. Kandungan lipid tertinggi diperoleh pada penambahan volume air lindi/1 hari sebesar 30,79%. Nilai COD sebelum kultivasi sebesar 3150 mg/L dan penurunan nilai COD terbaik diperoleh pada penambahan volume air lindi/3 hari sebesar 590 mg/L.
Pelatihan Pembuatan Hand Sanitizer Dari Daun Sirih dan Jeruk Nipis di Lingkungan RT 05 RW 18 Kelurahan Tangkerang Tengah Kecamatan Marpoyan Damai Kota Pekanbaru Muria, Sri Rezeki; Irianty, Rozanna Sri; Khairat; Hamzah, Nirwana; Meldha, Zuqni
BATOBO: Jurnal Pengabdian Kepada Masyarakat Vol 2 No 1: BATOBO: Juni 2024
Publisher : Jurusan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/batobo.2.1.9-16

Abstract

Masa pandemi Covid-19 saat ini yang sangat menuntut kita untuk selalu menerapkan protokol kesehatan (Prokes) dimanapun kita berada agar pandemi segera berakhir dan semua tetap sehat. Ibu-ibu rumah tangga adalah orang yang sangat penting untuk menjalani prokes didalam rumah tangga agar semua anggota keluarga tetap sehat. Tujuan kegiatan pelatihan pembuatan hand sanitizer secara alami dari daun sirih dan jeruk nipis adalah meningkatkan pengetahuan ibu-ibu rumah tangga tentang pentingnya prokes, khasiat bahan-bahan alam di sekitar, mampu membedakan hand sanitizer alami dan yang beralkohol serta terampil membuat hand sanitizer alami dirumah. Metode yang digunakan adalah ceramah, tanya jawab, diskusi, dan layanan bimbingan. Hasil yang diperoleh menunjukkan bahwa ibu-ibu rumah tangga peserta pelatihan telah memiliki keterampilan membuat hand sanitizer alami serta menghasilkan produk hand sanitizer yang siap pakai untuk digunakan didalam keluarga, tetangga dan saudara.
Biosurfactant Production from Pseudomonas aeruginosa ATCC27853 with Carbon Source from Crude Palm Oil for Oil Recovery Amraini, Said Zul; Muria, Sri Rezeki; Bahruddin, Bahruddin; HS, Irdoni; Artha, Ulfa Dwi; Susanto, Reno
Indonesian Journal of Chemical Research Vol 10 No 1 (2022): Edition for May 2022
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2022.10-sai

Abstract

Biosurfactants are surfactants that are synthesized by microorganisms using organic materials and have biodegradable properties, making them environmentally friendly. One of the applications of biosurfactants in the recovery of petroleum. This study aims to determine the type of biosurfactant produced by Pseudomonas aeruginosa bacteria using crude palm oil as the main carbon source, to determine the effect of variations in pH and CPO concentration on surface tension reduction and emulsification, and compare the best biosurfactant with surfactant synthesis. The production of biosurfactants has 3 stages, namely the bacterial preparation, the biosurfactant production, and the analysis in the form of surface tension, emulsification, crude oil removal, and FTIR. The best biosurfactant was obtained at pH 7 and a carbon source concentration of 3% v/v with surface tension and emulsification values ​​of 42.49 mN/m and 58%, respectively. The pH value and CPO concentration can affect the growth in the biosurfactant production process, thus also affecting the surface tension and emulsification values. The biosurfactants obtained were rhamnolipid biosurfactants. The biosurfactants produced in this study have lower crude oil recovery capabilities than synthetic surfactants with crude oil removal values ​​of 57.78% and 79.34%, respectively.
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 | Full PDF (354.179 KB) | DOI: 10.23887/jstundiksha.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
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 | Full PDF (356.117 KB) | DOI: 10.23887/jstundiksha.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.
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