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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