Sustainable wastewater disinfection is a worldwide challenge since most proven processes are energy intensive and produce harmful by-products. H2O2 is a strong oxidizing agent capable of breaking down both organic pollutants and microorganisms in wastewaters. Moreover, its decomposition only results in harmless by-products. Unfortunately, the main production process for industrial H2O2 is the anthraquinone process, which is complex and unfeasible for distributed operation. Localised production of H2O2 represent a favourable, low energy alternative. Such process is electrochemically driven and its operation varies according to the working conditions (acidic or alkaline), the type of pollutant (bacteria, organic compounds…) and on the type of process: direct synthesis or Advance Oxidation Processes (AOP).