Jadhav Dipak A, Park Sung-Gwan, Pandit Soumya, Yang Euntae, Ali Abdelkareem Mohammad, Jang Jae-Kyung, Chae Kyu-Jung
Division of Civil, Environmental Engineering and Logistics System (Environmental Major), College of Ocean Science and Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea; Department of Agricultural Engineering, Maharashtra Institute of Technology, Aurangabad, Maharashtra 431010, India.
Division of Civil, Environmental Engineering and Logistics System (Environmental Major), College of Ocean Science and Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea.
Bioresour Technol. 2022 Feb;345:126498. doi: 10.1016/j.biortech.2021.126498. Epub 2021 Dec 7.
During wastewater treatment, microbial electrochemical technologies (METs) are a promising means for in situ energy harvesting and resource recovery. The primary constraint for such systems is scaling them up from the laboratory to practical applications. Currently, most research (∼90%) has been limited to benchtop models because of bioelectrochemical, economic, and engineering design limitations. Field trials, i.e., 1.5 m bioelectric toilet, 1000 L microbial electrolysis cell and industrial applications of METs have been conducted, and their results serve as positive indicators of their readiness for practical applications. Multiple startup companies have invested in the pilot-scale demonstrations of METs for industrial effluent treatment. Recently, advances in membrane/electrode modification, understanding of microbe-electrode interaction, and feasibility of electrochemical redox reactions have provided new directions for realizing the practical application. This study reviews the scaling-up challenges, success stories for onsite use, and readiness level of METs for commercialization that is inexpensive and sustainable.
在废水处理过程中，微生物电化学技术（METs）是一种很有前景的原位能量收集和资源回收手段。此类系统的主要限制在于将其从实验室规模扩大到实际应用。目前，由于生物电化学、经济和工程设计方面的限制，大多数研究（约90%）仅限于台式模型。已经进行了现场试验，即1.5米生物电马桶、1000升微生物电解槽以及METs的工业应用，其结果是它们准备好实际应用的积极指标。多家初创公司已投资于METs用于工业废水处理的中试规模示范。最近，膜/电极改性、对微生物-电极相互作用的理解以及电化学氧化还原反应的可行性方面的进展为实现实际应用提供了新方向。本研究综述了METs扩大规模面临的挑战、现场使用的成功案例以及其商业化的准备程度，即廉价且可持续。
