(searched for: doi:10.36462/h.biosci.202201)
Published: 13 January 2023
Land and water resources are significant constraints in the present energy scenario. Phyco-remediation is crucial in attaining the UNDP’s sixth sustainable development goal. The wastewater treatment by microalgae is highly economical, and the biomass generated can be further utilized for biofuel production. The successful coupling of microalgae with wastewater can overcome the expensive cultivation of microalgae and pollutants with wastewater and scale-up production of high-value products. A microalgae-based wastewater treatment process reduces BOD, inhibits coliforms, removes nutrients and contaminants, and removes heavy metals. In wastewater, nutrients are abundant, making it an ideal medium for growing microalgae. Microalgal biomass can produce a wide range of high-value products, such as biomethane, compost, biofuels, and animal feed.
Published: 16 September 2022
Algae being the photosynthetic organism, currently considered as underexplored species for biofuel production in the entire global region and yet need to be explored more. In presence of algal based theory regarding the thermochemical process, though many researchers have been proceeding with the experiment but have got to stretch it further. This process aims to produce energy and bioactive compounds using algal biomass as a raw material. The current study relates with the thermochemical conversion process and mainly reflects about the algal biomass conversion into biorefinery production, in a short time with easier and economically viable points, unlike other biochemical and chemical conversion processes. In thermochemical process, high temperatures used during the process produces different biofuels including solid, liquid, gaseous biofuels. This thermal decomposition process of algal biomass can be categorized into Gasification, Pyrolysis, Direct combustion, Hydrothermal process, and Torrefaction. Hence, in this study, it briefs on different type of processes for better production of biofuel as well as its significant merit and demerit comparisons of each process.