The blackwater treatment plant of IPF was conceived, constructed and tested bij EPAS International before begint sent to Antartica!
Idem for the BlackWater & GreyWater treatments units of ESA (European Space Agency).
You could find what our colleagues designed as system that has been installed for the Antartic Belgium research base here.
The Princess Elisabeth Station features an advanced water treatment system that allows it to treat 100% of its grey and black waters. About 60% of the water is re-used, while the rest is disposed of in a crevasse near the station. Before it is disposed of, the water is treated extensively in order not to contaminate the pristine environment of Antarctica, in accordance with the Protocol on Environmental Protection to the Antarctic Treaty.