The participants carry out work that is defined as "hazardous work" by law. This requires knowledge and skills of the relevant health and safety regulations. The workflow of safe boarding is checked and evaluated.

This station will be all about agitators. After reading the data of a vibration, an error has been detected. After professional and safe disassembly the agitator must be repaired and after reassembly correctly to be put into operation. Finally, the data of the vibration sensor have to be checked again.

1. Installation and commissioning of a pilot plant
The participants set up a pilot plant and take it into operation. The participants set up the test facility, install the sensors, put it into operation, adjust and document the measured values. In addition, various body and area calculations can be queried.

2. Operational monitoring of a wastewater treatment plant
The participants must be able to measure and evaluate an unknown disturbance out of a water or waste water sample. The analysis is carried out by means of a cell test and photometer. In addition, they must be able to produce a dilution series, whereby they must carry out the calculation for this.

Here, the participants demonstrate their knowledge of wastewater treatment plants. A specific wastewater treatment plant is depicted by the magnetic cards. Process flow diagram and measurement setups are described. Operational disruption situations are queried and the sampling is visualised. Through this task, the participants show their competencies in process engineering. They can depict the technical procedures, recognise and solve problems and master difficult situations. Alongside the wastewater treatment, sewage sludge disposal is also handled. Energetic questions and questions on state monitoring values and their compliance are also part of the task. The task is to be processed with within a fixed time limit and then assessed by the jury. The participants are also given tips on how to improve.

For this, the DWA’s training box Wastewater Technology is used also as a special simulation software from Hydromentics.