The APTwater-ROCHEM group develops and operates advanced water treatment solutions using biological degradation, ozone-based oxidation and/or membrane processes for the purification and desalination of water, to enable the beneficial reuse of water for municipal and industrial clients as well as support environmental remediation. Contaminants such as e.g. nitrates, perchlorate, hexavalent chromium and selenium are reduced or destroyed. The groups water treatment systems can be found treating water on ships, landfills, chemical plants and each kind of wastewater facilities worldwide.