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	<title>Pengaruh Variasi Laju Alir Massa Karbondioksida Terhadap Produksi Mikroalga Scenedesmus obliquus pada Fotobioreaktor | Halomoan | REKAYASA HIJAU</title>
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	<meta name="DC.Creator.PersonalName" content="Nico Halomoan"/>
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	<meta name="DC.Description" xml:lang="id" content=" ABSTRACT  The fixation of carbon dioxide (CO2) by microalgae is seen as an economical and environmentally friendly way to reduce CO2 emissions. Variations in the CO2 mass flow rate were carried out to asses the effectiveness of CO2 biofixation on the production of microalgae through microalgae Scenedesmus obliquus activity in bubble column photobioreacters through the mass transfer process. The amount of microalgae production is one of the common parameters that are often used to assess the performance of photobioreactors in addition to CO2 removal efficiency. The microalgae growth rate was measured by measuring the concentration of biomass and cell density, concentration of CO2 input, CO2 output, dissolved CO2 with acidity alkalinity test. The flow rate used is 2 L/ min, 5 L/min and 8 L/min, concentrations of CO2 (v/v) flowed into the photobioreactor f 2%, 5% and 10%. The results showed that variation of flow rate influenced growth rate and cell density of microalgae Scenedesmus obliquus.   Keywords : carbon dioxide, flow rate, photobioreactor, Scenedesmus obliquus    ABSTRAK  Fiksasi karbondioksida (CO2) oleh mikroalga dipandang sebagai cara yang ekonomis dan ramah lingkungan untuk mengurangi emisi CO2. Variasi laju alir massa CO2 dilakukan untuk mengkaji efektivitas biofiksasi CO2 terhadap produksi mikroalga melalui aktivitas mikroalga Scenedesmus obliquus dalam fotobioreaktor kolom gelembung dengan proses perpindahan massa. Jumlah produksi mikroalga merupakan salah satu parameter umum yang sering digunakan untuk menilai kinerja photobioreaktor selain efisiensi penyisihan CO2. Dalam mengkaji keterkaitan tersebut dilakukan pengukuran laju pertumbuhan mikroalga dengan mengukur kandungan konsentrasi biomassa dan kepadatan sel, diukur konsentrasi CO2 input, CO2 output, CO2 terlarut dengan uji asidi alkalinitas. Laju alir yang digunakan adalah 2 liter/menit, 5 liter/menit dan 8 liter/menit, konsentrasi CO2 (v/v) yang dialirkan ke dalam fotobioreaktor yakni 2%, 5% dan 10%. Hasil penelitian menunjukkan bahwa variasi laju alir mempengaruhi laju pertumbuhan dan kepadatan sel mikroalga Scenedesmus obliquus.   Kata kunci : karbon dioksida, laju alir, fotobioreaktor, Scenedesmus obliquus"/>
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	<div id="articleTitle"><h3>Pengaruh Variasi Laju Alir Massa Karbondioksida Terhadap Produksi Mikroalga Scenedesmus obliquus pada Fotobioreaktor</h3></div>
	<div id="authorString"><em>Nico Halomoan, Astri R Nugroho</em></div>
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		<h4>Sari</h4>
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		<div><strong>ABSTRACT</strong><br />The fixation of carbon dioxide (CO2) by microalgae is seen as an economical and environmentally friendly way to reduce CO2 emissions. Variations in the CO2 mass flow rate were carried out to asses the effectiveness of CO2 biofixation on the production of microalgae through microalgae Scenedesmus obliquus activity in bubble column photobioreacters through the mass transfer process. The amount of microalgae production is one of the common parameters that are often used to assess the performance of photobioreactors in addition to CO2 removal efficiency. The microalgae growth rate was measured by measuring the concentration of biomass and cell density, concentration of CO2 input, CO2 output, dissolved CO2 with acidity alkalinity test. The flow rate used is 2 L/ min, 5 L/min and 8 L/min, concentrations of CO2 (v/v) flowed into the photobioreactor f 2%, 5% and 10%. The results showed that variation of flow rate influenced growth rate and cell density of microalgae Scenedesmus obliquus.<br /><br /><strong>Keywords</strong>: carbon dioxide, flow rate, photobioreactor, Scenedesmus obliquus<br /><br /><strong>ABSTRAK</strong><br />Fiksasi karbondioksida (CO2) oleh mikroalga dipandang sebagai cara yang ekonomis dan ramah lingkungan untuk mengurangi emisi CO2. Variasi laju alir massa CO2 dilakukan untuk mengkaji efektivitas biofiksasi CO2 terhadap produksi mikroalga melalui aktivitas mikroalga Scenedesmus obliquus dalam fotobioreaktor kolom gelembung dengan proses perpindahan massa. Jumlah produksi mikroalga merupakan salah satu parameter umum yang sering digunakan untuk menilai kinerja photobioreaktor selain efisiensi penyisihan CO2. Dalam mengkaji keterkaitan tersebut dilakukan pengukuran laju pertumbuhan mikroalga dengan mengukur kandungan konsentrasi biomassa dan kepadatan sel, diukur konsentrasi CO2 input, CO2 output, CO2 terlarut dengan uji asidi alkalinitas. Laju alir yang digunakan adalah 2 liter/menit, 5 liter/menit dan 8 liter/menit, konsentrasi CO2 (v/v) yang dialirkan ke dalam fotobioreaktor yakni 2%, 5% dan 10%. Hasil penelitian menunjukkan bahwa variasi laju alir mempengaruhi laju pertumbuhan dan kepadatan sel mikroalga Scenedesmus obliquus.<br /><br /><strong>Kata kunci</strong>: karbon dioksida, laju alir, fotobioreaktor, Scenedesmus obliquus</div>
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