The micropollutants detected in waters and their control are serious problems affecting ecosystems and, consequently, human beings. The primary issue in the inefficiency of the wastewater treatment plants (WWTPs) is their inability to eliminate contaminants. For this reason, the European Community legislates this problem, forcing WWTPs to correct these inefficiencies by 2045. However, there is currently no technology available that can eliminate this necessity. Biochar derived from waste can serve as an ecological solution to this problem, while providing new life to undervalued products. This work aims to respond to the environmental problem of water pollution, through a two-stage process, characterized by the principles of the circular economy. The first stage involves producing biochar from agricultural and forest waste and use it as a micropollutant adsorbent in wastewater. In the second stage, once the biochar is saturated and without greater adsorption capacity, it will be regenerated using electrochemical techniques.