Many waterworks use pure oxygen instead of compressed air. Pure oxygen has an almost five-fold higher solubility in water then air-oxygen (see figure). Therefore, it is easy to achieve high oxygen enrichments of 20 mg/l and more with pure oxygen, and increased ammonium contents can also be safely oxidised.
For the rapid and complete dissolution of O2, Messer supplies diverse, widely tested technologies, varying from fine-bubble feed directly into the main water stream to complete dissolution in a side stream under hydraulically defined conditions. In each project, we specify the feed method that best fits the local conditions.