School of Petrochemical Engineering & Environment, Zhejiang Ocean University, Zhoushan 316000, China; National Engineering Research Center for Marine Aquaculture, Zhoushan 316000, China.
Centre for Sustainable Aquatic Ecosystems, Harry Butler Institute, Murdoch University, Perth 6150, Australia.
Bioresour Technol. 2023 May;376:128941. doi: 10.1016/j.biortech.2023.128941. Epub 2023 Mar 21.
Microalgae cultivation in wastewater has received much attention as an environmentally sustainable approach. However, commercial application of this technique is challenging due to the low biomass output and high harvesting costs. Recently, integrated culture and harvest systems including microalgae biofilm, membrane photobioreactor, microalgae-fungi co-culture, microalgae-activated sludge co-culture, and microalgae auto-flocculation have been explored for efficiently coupling microalgal biomass production with wastewater purification. In such systems, the cultivation of microalgae and the separation of algal cells from wastewater are performed in the same reactor, enabling microalgae grown in the cultivation system to reach higher concentration, thus greatly improving the efficiency of biomass production and wastewater purification. Additionally, the design of such innovative systems also allows for microalgae cells to be harvested more efficiently. This review summarizes the mechanisms, characteristics, applications, and development trends of the various integrated systems and discusses their potential for broad applications, which worth further research.
微藻在废水处理中的应用作为一种环境可持续的方法受到了广泛关注。然而，由于生物量产量低和收获成本高，该技术的商业应用具有挑战性。最近，包括微藻生物膜、膜光生物反应器、微藻-真菌共培养、微藻-活性污泥共培养和微藻自絮凝在内的集成培养和收获系统已经被探索用于有效地将微藻生物质生产与废水净化结合起来。在这些系统中，微藻的培养和藻类细胞从废水中的分离都在同一个反应器中进行，使得在培养系统中生长的微藻能够达到更高的浓度，从而大大提高了生物质生产和废水净化的效率。此外，这种创新系统的设计还可以更有效地收获微藻细胞。本文综述了各种集成系统的机制、特点、应用和发展趋势，并讨论了它们在广泛应用中的潜力，值得进一步研究。
