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All Journal International Journal of Public Health Science (IJPHS) Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Communications in Science and Technology Media Ilmiah Teknik Lingkungan Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Journal of Engineering and Scientific Research (JESR) Jurnal Abdi: Media Pengabdian Kepada Masyarakat Journal of Earth and Marine Technology (JEMT) Matriks Teknik Sipil Journal of Sustainable Infrastructure (JSI)
Ariyanti Sarwono
Universitas Pertamina
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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Journal : Communications in Science and Technology

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Microalgae production using photo-bioreactor with intermittent aeration for municipal wastewater substrate and nutrient removal Anshah Silmi Afifah; I Wayan Koko Suryawan; Ariyanti Sarwono
Communications in Science and Technology Vol 5 No 2 (2020)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.5.2.2020.200

Abstract

Microalgae has emerged as a promising approach for removing substrate and nutrient from wastewater with the concomitant biofuel production. The substrate and nutrient removal are influenced by several factors such as C/N ratio, F/M ratio, pH, and DO. This study aims to determine the efficiency of substrate and nutrient removal with the growth rates of microalgae and biomass by varying the addition of aeration and substrate. Intermittently aerated reactors were used with the flow rate of 14 L/minute. The batch reactors were prepared by adding glucose substrate of 50 mg/L (Ra0A), 100 mg/L (Ra0B), and 150 mg/L (Ra0C) without aeration; 50 mg/L (Ra12A), 100 mg/L (Ra12B), and 150 mg/L (Ra12C) with 12-hour aeration, and 50 mg/L (Ra24A), 100 mg/L (Ra24B), and 150 mg/L (Ra24C) with 24-hour aeration. The substrate removal, expressed as chemical oxygen demand (COD) in the reactor with aeration, showed the efficiency of 73.88% ± 2.05 (12-hour aeration), 75.2% ± 3.97 (24hours aeration), and 69.86% ± 5.69(without aeration). Nutrient removal as ammonia-N (NH3-N) gave high removal value of 98.3% ± 0.11 and the removal of nutrient as phosphate (PO3-4) showed the efficiency of 54.3% ± 0.1. The growth rate of microalgae and biomass exhibited the highest value in Ra24C reactor with the values of 0.0229/day and 0.1295/day, respectively. The pH values indicated a shift from normal to alkaline while DO values increased by the addition of 12 and 24-hour aeration.
Co-Authors Abid Naufal Khairan Adam Ali Marwan Almira Davina Nastiti Anshah Silmi Afifah Aulia Rachma Yuliani Betanti Ridhosari Betanti Ridhosari Delfia Fansyah Dennis Filippi Dessy Maya Sari Disfiatri Kusumaningtyas Evi Siti Sofiyah Farhan Muhammad Hilmi Giovanni Ruly Putra Hafizha Hasnaningrum I Wayan Koko Suryawan Imroatus Sholikhah Intan Rahmalia Iva Yenis Septiariva Michael Yosafaat Natasya Hikmat Putri Nia Armelia Putri Nova Ulhansanah Nurul Faizah Setiaji Nurulbaiti Listyendah Zahra Pertiwi Andarani Ramadan, Bimastyaji Surya Reifaldy Tsany Betta Aryanto Sri Dewi Handayani Suryawan, I Wayan Koko Yesaya Emeraldy Priutama