This is a centralised wastewater treatment process flow diagram. A process flow diagram is a visual representation of each successive job that you and your team must perform in order to achieve a goal. Everyone may quickly grasp what order they have to perform activities by visualizing these stages in a diagram or flowchart. While originally intended for industrial engineering, process flowcharts have evolved into an essential tool for corporate project management. Now it is easy to create a PFD with EdrawMax.