Dr. Abdelkader Anouzla received his Ph.D. in Science & Technology at Hassan II University -Faculty of Science and Technology Mohammedia, specializing in water treatment. Dr. Abdelkader ANOUZLA has published almost 60 peer-reviewed articles and six books. As well as being a guest speaker at several conferences, he has also published numerous proceedings. He has experience in water and wastewater, solid waste management, environmental chemistry, pollutants in soil, study and characterization of waste, recycling, and reuse of waste to produce new materials, and air pollution. Anouzla conducts research in the areas of water and waste treatment, wastewater treatment plant operation, leachate discharge treatment, solid waste sorting, technical landfill management, and composting of solid waste and sludge from wastewater treatment plants, the Algae as a Natural Solution for Water-Food-Energy nexus and Microplastic pollution in the environment, digitalization in the water sector, Saving water in business and irrigation. Prof. Salah Souabi PHD water and waste treatment works at the Hassan II University in Mohammedia, the Laboratory of Process and Environmental Engineering of Morocco's Faculty of Science and Technology. Prof. Souabi is responsible for a research team on managing liquid and solid discharges, with 152 articles published in international journals and 22 book chapters. He is the publisher of five books. Salah conducts research in water and waste treatment, optimization of treatment conditions of wastewater treatment plants, treatment of leachate discharges, sorting of solid waste, management of technical landfills, operation of wastewater treatment plants, composting of solid waste and sludge from wastewater treatment plants using composts in agroecology.