Increasing industrialization and population growth has caused tremendous contamination of surface waters during the last decades. As a consequence, the laws regarding environmental protection have been tightened in many countries. To fulfill these regulations means increasing the number and the efficiency of wastewater treatment plants.
Today it is necessary to use ongoing treatment processes and control them by means of measurement and control systems. In-service monitoring has become more extensive and diverse. Wastewater treatment not only includes operating, supervising, servicing and repairing equipment, it also involves the key topics of operational flow, monitoring and controlling, measuring, analyzing, recording and evaluating. This ensures that the key processes, the reduction of hydrocarbons, of nitrate/ammonium and phosphates are carried out in a most efficient.