A novel amperometric BOD sensor based on Geobacter-dominated biofilms

The theoretical amount of biodegradable compounds in water is termed the biochemical oxygen demand (BOD) and is commonly measured using a five-day assay (BOD5), which is inappropriate for a real-time monitoring of the water quality in treatment plants. In this context, we developed a new type of biochemical oxygen demand (BOD) sensor using a specially selected Geobacter-dominated biofilm as the biocomponent and a microbial electrolysis cell as the transducer