Biocathodes in bioelectrochemical systems (BESs) can be used to convert CO2 into diverse organic compounds through a process called microbial electrosynthesis. Unfortunately, start-up of anaerobic biocathodes in BESs is a difficult and time consuming process. Here, a pre-enrichment method was developed to improve start-up of anaerobic facultatively autotrophic biocathodes capable of using catho...

Bioelectrochemical systems (BESs) can be integrated in situ into anaerobic digesters for increasing methane (CH 4 ) content of biogas. Using BES ex improving biogas quality has recently been gaining attention. However, information on the process under thermophilic conditions is very limited. In this study, we placed a cathode in-line at exit gas from digester to convert carbon dioxide (CO 2 CH ...

Increasing energy demands and greenhouse gases emission from wastewater treatment processes prompted the investigation of alternatives capable to achieve effective treatment, materials recovery, reduce environmental footprint. Combination microbial fuel cell (MFC) technology with microalgal-based process in MFC-PBR (photobioreactor) systems could emissions facilities, capturing CO2 emitted indu...

Chlorinated aliphatic hydrocarbons (CAHs) are common groundwater contaminants due to their improper use in several industrial activities. Specialized microorganisms able perform the reductive dechlorination (RD) of high-chlorinated CAHs such as perchloroethylene (PCE), while low-chlorinated ethenes vinyl chloride (VC) more susceptible oxidative mechanisms performed by aerobic dechlorinating mic...

Enzyme immobilization on solid conducting surfaces faces challenges for practical applications in technologies such as biosensors and biofuel cells. Short-term stability, poor electrochemical performance, enzyme inhibition are some unsolved issues. Here, we show a simple methodology bilirubin oxidase (BOD) carbon-based gas diffusion electrode four-electron oxygen reduction reaction. BOD is inco...

Enzymatic Biofuel Cell (EBC) represents a promising green source since it is capable of harvesting electricity from renewable and abundantly available biofuels using enzymes as catalysts. Nevertheless, nowadays long-term stability low power output are currently the main concerns. To this end, several research studies focus on complex tridimensional highly expensive nanostructures electrode supp...

Bacterial extracellular electron transfer (EET) is envisioned for use in applied biotechnologies, necessitating electrochemical characterization of natural and engineered electroactive biofilms under conditions similar to the target application, including small-scale biosensing or biosynthesis platforms, which often distinct from standard 100 mL-scale stirred-batch bioelectrochemical test platf...