Wastewater package plants are small, smart facilities that help cities manage dirty water in a cleaner way. They are easy to install and can be placed where big treatment plants can’t go, making them super useful for crowded urban areas. Recently, a workshop brought together many people to learn how to set up and run these plants, highlighting their importance for public health and the environment. By using these innovative systems, cities can boost their economies while making sure they take care of our precious water resources.