Assessment and characterization of the physicochemical parameters of Moroccan leachate during the confinement period (coronavirus)

This work was carried out to respond to a major environmental issue which is water pollution and its repercussions on receiving environments, in particular the problem of leachate in the city of Fez-Morocco. The leachates generated by many economically relevant industrial activities contain recalcitrant organic compounds that remain unchanged at the biological stage of the treatment plant, which could make it difficult to comply with the discharge standard limits currently in force. During this work, we evaluated the elements present in the leachate as well as a physicochemical characterization study such as the chemical oxygen demand (COD), the biochemical oxygen demand over 5 days (BOD5), the pH, the electrical conductivity, the total phosphorus, the ammonium, suspended matter, and heavy metals, before and during the period of coronavirus containment.