DOI: 10.22146/ajche.52762 AJChE 2020, Vol. 20, No. 1, 77 – 87 Evaluation of Spirulina platensis in Bicarbonate- Based Integrated Carbon Capture and Algae Production System Utilizing Different Culture Media Christelle Paula C. Batac Nadeine S. Gathercole Ana Katrina F. Maravilla Arnel B. Beltran * Chemical Engineering Department, De La Salle University- Manila, Manila Philippines * e-mail: arnel.beltran@dlsu.edu.ph A method known as Bicarbonate-based Integrated Carbon Capture and Algae Production System (BICCAPS), is a growing study introduced as an alternative to current carbon capture and sequestration (CCS) methods. It is a closed-loop cycle involving inorganic carbon in the form of bicarbonates, which is consumed by microalgae for growth and utilizes the regenerated carbonates for another cycle of carbon capture. Existing literature requires more in-depth experimentation and analysis with regards to the viability of different microorganisms to the rising method. Spirulina platensis was evaluated in BICCAPS using 0.1M Na 2 CO 3 , employing three different culture media for growth, namely, modified Zarrouk’s, NPK- based, and NPK- based with A 5 solution media. Biomass growth, productivity, and carbon dioxide utilization were investigated to determine the effectivity of BICCAPS as a carbon sequestration technique. At control conditions, NPK-based with A 5 solution medium yielded the highest productivity with a value of 10.81 mg L -1 day -1 . Likewise, using NaHCO 3 as a carbon source, results show that the highest productivity was achieved also under NPK- based with A 5 solution medium with a value of 6.80 mg L -1 day -1 , as well as a high carbon conversion value of 2.092 day -1 . Keywords: BICCAPS, Carbon Capture, Modified Zarrouk’s Medium, NPK-based Medium, Sodium Bicarbonate, Spirulina platensis INTRODUCTION Combustion or burning of fossil fuels has become a well-known and accepted method in energy production (Sayre 2010). Actuated by the demands during the industrial revolution and with the current rapid economic growth, CO 2 content in the atmosphere has drastically increased, resulting to global warming (Leung, Caramanna, & Maroto-Valer, 2014). According to the International Energy Agency (IEA), in 2018 alone, atmospheric CO 2 drastically increased by