电化学厌氧消化的研究进展

Review on Electrochemical Anaerobic Digestion

电化学厌氧消化(EAD)是一项利用微生物电解池(MEC)促进厌氧消化(AD)的新技术,同时也是一项解决全球变暖和能源危机的绿色可持续发展技术;通过近年的研究发现,EAD技术不仅可以显著提高有机物的降解率和能源的回收率,还能大幅度提高沼气中CH4含量,并降低CO2含量,这已然成为AD领域的研究热点;然而,该技术的发展目前仍处于起步阶段,材料昂贵、工程化和规模化应用困难等问题对其实际应用提出了各方面的挑战;因此,本文对EAD技术在近年来的发展现状,及其在实验室和实际工程运行中的影响因素做了全面的总结,同时,指出了当前开发实用的EAD系统所面临的挑战,最后,对该技术在未来的研究和应用方向方面作出了展望。

Electrochemical anaerobic digestion(EAD) is a new technology that used microbial electrolytic cell(MEC) to improve anaerobic digestion(AD),and it is also a green sustainable development technology to solve global warming and energy crisis.Through the study of the EAD system in recent years,we found that this technology can not only significantly improve the degradation rate of organic matter and the overall energy recovery efficiency,but also greatly increase the content of CH4 in biogas and reduce the content of CO2.The EAD system has become a research hotspot in the field of anaerobic digestion.However,the development of EAD technology is still in its infancy,and the problems pose challenges to its practical application,such as expensive materials,difficulties in engineering,and large-scale application.Therefore,this review comprehensively summarized the development status of EAD technology in recent years and the influencing factors of this technology in laboratory and practical engineering operations.The challenges of developing a practical EAD system are pointed out at present.Finally,the review looks forward to the future research and application direction of EAD technology.