The waste water treatment plants (WWTP) of Tankterminal and Unidet consists of:
- oil-/sediment separators
- buffertanks for physical-chemical treatment
- physical-chemical treatment by DAF-units
- batch biological treatment (aerobic and anaerobic phases)
- effluent buffertanks

Centrifuges are dehydrating all sludges (primary/secundary-biological) after which the sludges are exported.