School of Environment, Northeast Normal University, Changchun 130024, China.
Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, Changchun 130118, China.
Int J Environ Res Public Health. 2020 Feb 10;17(3):1121. doi: 10.3390/ijerph17031121.
The tri-functional purpose of Microbial Desalination Cell (MDC) has shown a great promise in our current scarcity of water, an increase in water pollution and the high cost of electricity production. As a biological system, the baseline force that drives its performance is the presence of exoelectrogens in the anode chamber. Their presence in the anodic chamber of MDC systems enables the treatment of water, desalination of seawater, and the production of electrical energy. This study reviews the characteristics of exoelectrogens, as a driving force in MDC and examines factors which influence their growth and the performance efficiency of MDC systems. It also addresses the efficiency of mixed cultures with certain predominant species as compared to pure cultures used in MDC systems. Furthermore, the study suggests the need to genetically modify certain predominant strains in mixed cultures to enhance their performance in COD removal, desalination and power output and the integration of MDC with other technologies for cost-effective processes.
微生物脱盐电池 (MDC) 的三重功能在我们当前的水资源短缺、水污染加剧和电力生产成本高的情况下显示出巨大的前景。作为一个生物系统，驱动其性能的基本力量是阳极室内存在的异化电子菌。它们在 MDC 系统的阳极室内的存在使水的处理、海水的脱盐和电能的生产成为可能。本研究回顾了异化电子菌作为 MDC 的驱动力的特性，并研究了影响它们生长和 MDC 系统性能效率的因素。它还讨论了与用于 MDC 系统的纯培养物相比，混合培养物中某些优势物种的效率。此外，该研究还提出需要对混合培养物中的某些优势菌株进行基因改造，以提高它们在 COD 去除、脱盐和功率输出方面的性能，并将 MDC 与其他技术集成，以实现具有成本效益的工艺。
