De-ballasting station
De-ballasting station
Type of treatment: Final disposal
Description:Facilities where oil tankers can berth and unload their washing waters from their tanks. These waters are then treated in the deballasting station by decantation often using API basin allowing skimming of the oil in surface and recovery of the settled sediment before discharging the water.
Waste:
Liquid oily water (if not too weathered or emulsified and with no waste or no sediment)
Washing effluents (from washing operations).
Situation/Possibilities in the country:
Depends on installation that may be present in the country.
Interest:
Allows treating oily washing effluents and/ or oily water in a controlled environment before discharging in the environment.
Entry criteria:
Must be liquid waste.
Operational constraints:
Limited capacities
Recovered oil is routed to oil refineries.
Water is discharged after treatment in the environment.
Impacts:
Minimal when processes are well managed and monitored regularly.
Legal constraints:
Refer to legislation regarding waste management.
Efficiency:
High with latest installation.
Cost:
CAPEX: high if no existing installation.
OPEX: to define depending on installation.