PDF(Pubmed)
Abstract：
Wastewater pipelines are present everywhere in urban areas. Wastewater is a preferable fuel for renewable electricity generation from microbial fuel cells. Here, we created an integrated microbial fuel cell pipeline (MFCP) that could be connected to wastewater pipelines and work as an organic content biosensor and energy harvesting device at domestic waste-treatment plants. The MFCP used a pipeline-like terracotta-based membrane, which provided structural support for the MFCP. In addition, the anode and cathode were attached to the inside and outside of the terracotta membrane, respectively. Co-MnO2 was used as a catalyst to improve the performance of the MFCP cathode. The experimental data showed a good linear relationship between wastewater chemical oxygen demand (COD) concentration and the MFCP output voltage in a COD range of 200-1900 mg/L. This result implies the potential of using the MFCP as a sensor to detect the organic content of the wastewater inside the wastewater pipeline. Furthermore, the MFCP can be used as a long-lasting sustainable energy harvester with a maximum power density of 400 mW/m2 harvested from 1900 mg/L COD wastewater at 25 °C.
摘要：
污水管道在城市地区随处可见。废水是用于从微生物燃料电池产生可再生电力的优选燃料。这里,我们创建了一个集成的微生物燃料电池管道（MFCP），该管道可以连接到废水管道，并作为生活垃圾处理厂的有机含量生物传感器和能量收集装置。MFCP使用了管道状的兵马俑膜，为MFCP提供结构支持。此外,阳极和阴极附着在兵马俑膜的内部和外部，分别。Co-MnO2用作催化剂以改善MFCP阴极的性能。实验数据表明，在200-1900mg/L的COD范围内，废水化学需氧量（COD）浓度与MFCP输出电压之间具有良好的线性关系。该结果意味着使用MFCP作为传感器来检测废水管道内废水的有机含量的潜力。此外，MFCP可用作持久的可持续能量收集器，最大功率密度为400mW/m2，从25°C的1900mg/LCOD废水中收获。
