Conclusions and Discussion:
In this study, a novel algae-based photosynthetic MFC was evaluated in terms of electrical output, conditions, and growth. Within the electrical output, the nannochloropsis photometric absorption rate was at 286 (A) and had the highest electrical output of 35 mW. Additionally, the nannochloropsis was capable of proliferating during long periods of times. However, Spirulina ( 31 mW) and Chlorella (30.2mW) absorption rates proved to be less effective. It is likely that the diffusional limitation in the species resulted in an inefficiency of the absorption process. This preliminary study suggests that it is possible to utilize an algae-based microbial fuel cell to create energy efficient production through the photosynthetic nature of the fuel cell. Furthermore, the cell would reduce excess carbon dioxide while simultaneously producing energy. General Data Analysis: Electrical Output and Algae Development. During the investigation of data, it is concluded that Nannochloropsis is a likely candidate in bio-electric production. Most notably, there was an obvious correlation between both Algae development (photometric absorption) and electrical output mW. The positive relationship between electrical output (mW) and the magnitude of absorption (A) strongly suggests that higher algae concentrations were proportional with optimal electrical output when approaching the stationary phase. Due to higher metabolic processes in algal cultures, higher electrical results (mW) were anticipated.
Future Directions and Prospects:
The practical use of an MFC in a large scale setting is to be further investigated. An Algae MFC proves to be economically, environmentally, and technologically efficient. The future of this study may be used in multiple worldwide settings:
Developed Nations (e.g. United States and the European industry): Large-scale energy production as a substitute for fossil fuels and oil production. The MFC will immediately minimize greenhouse gases while producing biofuel and electrical energy.
Developing Countries (e.g. countries in Africa, Asia, and Latin America):
Potential Large scale electrical and biofuel production. May be used by individuals, facilities, and companies.
Large oceanic cultures can be utilized for high-scale energy production. More importantly, the scalability and size compatibility of a combined photobioreactor and microbial fuel cell is to be further sample. In addition, investigating the idea of small-scale interlinked Algal solar cells with maximized adjustability is crucial. Constructing a more adjustable unit of Microbial Fuel Cells may advantage easy scalability, attachment, and configuration (e.g. reorganization and repair of energy units after a storm or natural disaster).
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