Li Jian, He Zhen
Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24060, USA.
Environ Sci Pollut Res Int. 2016 Feb;23(4):3897-906. doi: 10.1007/s11356-015-5611-3. Epub 2015 Oct 26.
Membrane bioelectrochemical reactors (MBERs) integrate membrane filtration into bioelectrochemical systems for sustainable wastewater treatment and recovery of bioenergy and other resource. Mathematical models for MBERs will advance the understanding of this technology towards further development. In the present study, a mathematical model was implemented for predicting current generation, membrane fouling, and organic removal within MBERs. The relative root-mean-square error was used to examine the model fit to the experimental data. It was found that a constant to determine how fast the internal resistance responds to the change of the anodophillic microorganism concentration could have a dominant impact on current generation. Hydraulic cross-flow exhibited a minor effect on membrane fouling unless it was reduced below 0.5 m s(-1). This MBER model encourages further optimization and eventually can be used to guide MBER development.
膜生物电化学反应器(MBERs)将膜过滤集成到生物电化学系统中,用于可持续的废水处理以及生物能源和其他资源的回收。MBERs的数学模型将推动对该技术的理解,以实现进一步发展。在本研究中,实施了一个数学模型来预测MBERs内的电流产生、膜污染和有机物去除。使用相对均方根误差来检验模型与实验数据的拟合度。研究发现,一个用于确定内阻对嗜阳极微生物浓度变化响应速度的常数可能对电流产生有主导影响。水力错流对膜污染的影响较小,除非其降低到0.5 m s(-1)以下。这个MBER模型有助于进一步优化,最终可用于指导MBER的发展。