School of Water Resources and Environment, China University of Geosciences (Beijing), Key Laboratory of Groundwater Circulation and Evolution, Ministry of Education, Beijing 100083, China.
Bioresour Technol. 2012 Nov;124:1-7. doi: 10.1016/j.biortech.2012.08.045. Epub 2012 Aug 19.
COD/sulfate ratio and hydraulic residence time (HRT), both of which influence sulfate loadings jointly, are recognized as the most two important affecting factors for sulfate removal and bioelectricity generation in the novel up-flow anaerobic sludge blanket reactor-microbial fuel cell (UASB-MFC) integrated system. The response surface methodology (RSM) was employed for the optimization of this system and the optimum condition with COD/sulfate ratio of 2.3 and HRT of 54.3h was obtained with the target of maximizing the power output. In terms of maximizing the total sulfate removal efficiency, the obtained optimum condition was COD/sulfate ratio of 3.7 and HRT of 55.6h. Experimental results indicated the undistorted simulation and reliable optimized results. These demonstrated that RSM was effective to evaluate and optimize the UASB-MFC system for sulfate removal and energy recovery, providing a promising guide to further improvement of the system for potential applications.
COD/硫酸盐比和水力停留时间（HRT）共同影响硫酸盐负荷，被认为是新型上流式厌氧污泥床反应器-微生物燃料电池（UASB-MFC）集成系统中去除硫酸盐和产生生物电能的两个最重要的影响因素。响应面法（RSM）被用于优化该系统，以最大输出功率为目标，获得了最佳的 COD/硫酸盐比为 2.3 和 HRT 为 54.3h 的条件。为了最大程度地提高总硫酸盐去除效率，获得的最佳条件是 COD/硫酸盐比为 3.7 和 HRT 为 55.6h。实验结果表明模拟结果无失真，优化结果可靠。这些表明 RSM 可有效评估和优化用于硫酸盐去除和能量回收的 UASB-MFC 系统，为进一步改进该系统以实现潜在应用提供了有希望的指导。
