渗透生物电化学系统（OsBES）可同时实现废水中营养物、能量、水分子回收的功能。然而，由质子传输效率低下引起的阴阳两极酸碱失衡，严重影响了OsBES的运行效能。针对这一关键科学问题，本项目拟采用相转化-界面聚合技术，在复合正渗透（FO）膜支撑层及活性层引入具有质子交换功能的磺酸根基团，增加质子吸附位点及载体，构建连续宽敞的质子传输通道，减小质子传输阻力，实现质子从阳极到阴极的快速传递。在此基础上，优化影响质子传输速率的因素，建立质子交换复合FO膜内的质子传输速率方程，揭示质子传输速率与污染物降解效率及产水量之间的相互关系，阐明OsBES的除污染机制。本项目的实施可以提升OsBES的运行效能，实现OsBES无缓冲液条件运行，为废水处理领域的工艺设计及优化运行提供新的理论依据及技术支持。

The nutrients, energy and water molecular recovery from the wastewater can be accomplished simultaneously in Osmotic Bioelectrochemical System (OsBES). However, the acid-base imbalance caused by inefficiency of proton transmission between cathode and anode in OsBES affects the operating efficiency of OsBES seriously. In regard to this key scientific issue, sulfonic acid radical groups with the function of proton exchange will be introduced in the support layer and active layer of the composite forward osmosis (FO) membrane by phase inversion-interfacial polymerization technology. The proton adsorption sites and carriers will be increased and the proton transport channels constructed by the above method. Due to the reduced resistance of proton transport, the fast transmission of proton from anode to cathode will be realized. On this basis, the factors affecting proton transport rate will be optimized. The transport rate equation of proton from the proton exchange composite FO membrane will be established. The inherent law will be revealed between proton transport rate and the degradation efficiency of pollutants and water yield in organic wastewater. The mechanism of pollution removal in OsBES will be clarified. The implementation of this project could improve the operating efficiency and realize the running of OsBES in the condition of no buffer solution. Furthermore, it could provide new theoretical basis and technical support for process design and operation optimization in the field of wastewater treatment.