Energy conversion from biodegradation of non-thermal pre-treated algae biomass for microbial fuel cell / Muhammad Haikal Zainal … [et al.]

Zainal, Muhammad Haikal and Hassan, Oskar Hasdinor and Ab Samad, Liana Shakira and Ali, Ab Malik Marwan and Yahya, Muhd Zu Azhan (2016) Energy conversion from biodegradation of non-thermal pre-treated algae biomass for microbial fuel cell / Muhammad Haikal Zainal … [et al.]. Journal of Mechanical Engineering (JMechE), 13 (1). pp. 26-31. ISSN 1823-5514 ; 2550-164X


Strength and complexity of algae cell wall structures provides difficulty for microbial substrate digestion. Therefore, pre-treatment is required to break the algae cell wall. There are several types of algae cell wall pre-treatment before degradation process. Among of these methods, freeze drying method is able to breakdown algae cell walls and preserve algae cell constituents simultaneously. Freeze dried (non-thermal pre-treatment) Chlorella vulgaris microalgae biomass was used as microbial substrate consumption in double chamber Microbial Fuel Cell (MFC) to generate bio electricity. As a result, the treatment efficiency obtained in terms of Chemical Oxygen Demand (COD) removal efficiency is 63.5%. Based on the power curve obtained, the maximum power density is 8.94 m W/m² using 2.5 g/L of substrate concentration. At substrate concentration of 5.0 g/L, the MFC has COD removal efficiency of 52.38% and maximum power density of 2.87mW/m². At the substrate concentration of 1.0 g/L, the MFC has COD removal efficiency is 86.8%, and maximum power density of 0.11 m W/m². MFC with different freeze dried algae substrate of 1.0 g/L, 2.5 g/L and 5.0 g/L has Coulombic efficiency (CE) of 1.56 %, 18.6% and 13.1%, respectively. These results reveal that the use of freeze dried microalgae biomass could be a promising candidate in the application of MFC.


Item Type: Article
Email / ID Num.
Zainal, Muhammad Haikal
Hassan, Oskar Hasdinor
Ab Samad, Liana Shakira
Ali, Ab Malik Marwan
Yahya, Muhd Zu Azhan
Subjects: T Technology > TJ Mechanical engineering and machinery > Heat engines > Heat. Heat in its applications, as a source of power, etc
Divisions: Universiti Teknologi MARA, Shah Alam > Faculty of Mechanical Engineering
Journal or Publication Title: Journal of Mechanical Engineering (JMechE)
UiTM Journal Collections: UiTM Journal > Journal of Mechanical Engineering (JMechE)
ISSN: 1823-5514 ; 2550-164X
Volume: 13
Number: 1
Page Range: pp. 26-31
Keywords: Freeze dry algae; microbial fuel cell; biomaterials; energy storage and conversion
Date: 2016
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