| Title | Strategies for the effective solid, liquid and gaseous waste valorization by microalgae: A circular bioeconomy perspective |
|---|---|
| ID_Doc | 29792 |
| Authors | Yadav, G; Panda, SP; Sen, R |
| Title | Strategies for the effective solid, liquid and gaseous waste valorization by microalgae: A circular bioeconomy perspective |
| Year | 2020 |
| Published | Journal Of Environmental Chemical Engineering, 8.0, 6 |
| Abstract | The increasing trend in greenhouse gas (GHG) emissions, industrialization, and the current consumer-centric lifestyle has led to the generation of different waste sources. There are three foci in this research. First, the performance of Chlorella sp. was assessed for the remediation of domestic wastewater (DWW) in a batch process (t = 8 days) using ambient air (0.04 % CO2 ppmv). Second, various external solid wastes such as poultry and piggery litter were explored to complement the lower nitrogen content in DWW. Addition of poultry litter in DWW improved the biomass productivity (133 mg L-1 d(-1))by 70.51 %. Subsequently, the inclusion of flue gas resulted in a maximum CO2 fixation rate of 261 mg L-1, and 20-folds increment in biomass concentration under mixotrophic mode. Finally, the overall biomass productivity was increased by 82.69 % under semi-continuous mode when all three forms of waste were utilized than the batch process. This research promoted a circular economy concept for biomass production for biorefinery applications through the implementation of a system integration approach to mitigate solid, liquid, and gaseous waste. |
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