Phycoremediation of aquaculture wastewater and algal lipid extraction for fuel conversion

Bobita Ray,Suchitra Rakesh,Hatem Zayed

doi:10.36462/h.biosci.202201

Bobita Ray, Suchitra Rakesh + Show 1 more

Open Access

https://doi.org/10.36462/h.biosci.202201

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Abstract

In this review, it is discussed the prominent effect generated from aquaculture wastewater considered as the major water polluting crisis in the entire world. The cause rose due to intense development and improvement in aquaculture by the aquatic habitat species triggering quite a challenge in the environment. Scrutinizing this problem, researchers have found a way to tackle it by cultivating algal species in aquaculture wastewater in order to remove its high content of organic and inorganic pollutants. The theory proves wastewater serves as a nutrient source for algal growth and development such as phosphorous, nitrogen, and other trace elements. Besides harvesting the algal biomass from aquaculture wastewater, the extraction of lipid is also processed for biofuel production. Hence, the discussion includes conversion of wastewater into organic and inorganic pollutant-free water with low cost-effective method via algal cultivation in wastewater and high lipid yield for biofuel with a carbon-free and sustainable environment.

Highlights

Ever increasing global population and continuous dependence of fossil fuels, increased urbanization and industrialization posing a major threat to energy security and environmental concerns to both developed and developing nations
Lipid extraction through microwave assisted in situ transesterification technique for the biodiesel yield was achieved from algae such as Ulothrix sp. 88% dry weight (DW), Cladophora sp. 80% DW, Oedogonium sp. 73% DW and Spirogyra sp. 67% DW. This technique for high biodiesel yield utilizes solvent free method [29]. From this study it reveals aquaculture wastewater is being the significant source for cultivating algae proceeding with sustainable environment in simple, cost effective way with zero waste reassurance
The emitted aquaculture effluent contains highly nutritive source for algae that blends into it recommending as bio or phyco remediation in process

Summary

Introduction

Ever increasing global population and continuous dependence of fossil fuels, increased urbanization and industrialization posing a major threat to energy security and environmental concerns to both developed and developing nations. Scrutinizing this problem, researchers have found a way to tackle it by cultivating algal species in aquaculture wastewater in order to remove its high content of organic and inorganic pollutants. Besides harvesting the algal biomass from aquaculture wastewater, the extraction of lipid is processed for biofuel production.

Results

Conclusion