Performance evaluation of a photosynthetic microbial fuel cell (PMFC) using Chlamydomonas reinhardtii at cathode. (October 2021)

• Record Type: Journal Article
• Authors: Sharma, Arti; Chhabra, Meenu
• Is Part Of: Bioresource technology. Volume 338(2021)
• Publication Date: 2021-10
• Subjects: Chlamydomonas reinhardtii -- Photosynthetic microbial fuel cell -- Antioxidant -- Antibacterial -- Pigments; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2021.125499
• Languages: English
• ISSNs: 0960-8524

Abstract

Graphical abstract: Highlights: Chlamydomonas reinhardtii was employed at the cathode for the first time in PMFC. This study achieved 15.21 W m −3 and 39 A m −3 of power and current density. A single batch cycle produced energy up to 0.29 kWh m −3 . High phenolic content, antioxidant, and anti-bacterial activity observed in algae. Chlorophyll and Carotenoid content reached 18.95 mg/g and 2.40 mg/g DW of algae. Abstract: This study reports the use of Chlamydomonas reinhardtii at the cathode in a photosynthetic microbial fuel cell (PMFC). The PMFC produced power and current density of 15.21 W m −3 and 39 A m −3, respectively. The specific growth rate of algae culture at the cathode was 0.284 day −1 . The system achieved COD removal at 73.30% with a Coulombic efficiency of 9.068%. The usability of algae biomass was assessed in terms of its total phenol content (157.69 mg GAE/g algae DW), antioxidant activity (IC50 = 67.07 µg/ml), total Chlorophyll (18.95 mg/g), total Carotenoids (2.40 mg/g), and antibacterial properties against known pathogens. Overall, the study's findings suggested that C. reinhardtii supports high power output from a PMFC and is highly resourceful in terms of value-added products.