School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China.
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China; Chemical Engineering Research Center, Tianjin University, Tianjin 300350, China.
Bioresour Technol. 2022 Jan;344(Pt B):126230. doi: 10.1016/j.biortech.2021.126230. Epub 2021 Oct 31.
Microalgae cultivating in wastewater enabling nutrient uptake for biomass and biofuel generation is regarded as a promising pathway to increase sustainability of microalgae biofuel production process. A source-separated nutrient organization approach for the process of wastewater-based microalgae biofuel is proposed in this study. Comparative life cycle assessment (LCA) method and Techno-economic analysis (TEA) approach are employed to assess sustainability and economic performance of the proposed nutrient approach. Two scenarios are used to validate our study. Scenario 1 is based on the source-separated nutrient delivery approach with microalgae integrated wastewater in tertiary treatment. Scenario 2 is based on non-separated-point nutrient delivery policy and microalgae integrated with secondary wastewater treatment. The results show that the source-separated nutrient approach is effective for reducing the environmental impacts and increasing commercial potential of microalgae biofuel.
在废水中培养微藻以吸收营养物质来生产生物质和生物燃料被认为是提高微藻生物燃料生产过程可持续性的一种有前途的途径。本研究提出了一种基于废水的微藻生物燃料的源分离养分组织方法。本研究采用比较生命周期评估（LCA）方法和技术经济分析（TEA）方法来评估所提出的养分方法的可持续性和经济性能。使用两种情景来验证我们的研究。情景 1 基于带有三级处理的微藻集成废水的源分离养分输送方法。情景 2 基于非分离点养分输送政策和与二级废水处理集成的微藻。结果表明，源分离养分方法可有效降低微藻生物燃料的环境影响，提高其商业潜力。
