Concept: Chemische Reinigung 26. October 2021 Indiravadhanan-Anandarajah WWTP (0) For the point "Chemical Cleaning" we will have the following concept: 1. Putting in pictures 2. Describing the process of "Chemical Cleaning" and what "Phosphate" is 3. Find a conclusion 4. Do a presentation with a surprise Indi and Daniel