Bioelectrochemical systems for nitrogen removal and recovery from wastewater

摘要: Removal of nitrogen compounds from wastewater is essential to prevent pollution receiving water bodies (i.e. eutrophication). Conventional removal technologies are energy intensive, representing one the major costs in treatment plants. For that reason, innovations focus on reduction use. Bioelectrochemical systems (BESs) have gained attention as an alternative treat while recovering and/or chemicals. The combination electrodes and microorganisms has led several methods remove or recover via oxidation reactions, reactions transport across ion exchange membrane. In this study, we give overview recovery mechanisms BESs based state-of-the-art research. Moreover, show economic analysis ammonium compare it with existing technologies. We present estimation conditions needed achieve maximum both a microbial fuel cell (MFC) electrolysis (MEC). This allows for better understanding limitations key factors take into account design operation MFCs MECs. Finally, address main challenges overcome order scale up put technology practice. Overall, revenues nitrogen, together production electricity MFC hydrogen MEC, make promising concept.