Treating spent caustic liquor BP Brisbane
Industrial Liquid Waste - BP Bulwer Island Refinery, Brisbane, Queensland
BP Australia needed to treat spent caustic liquor stored in tanks at its Brisbane Refinery - effluent resulting from caustic stripping used as part of the crude oil refining process.
AdTech designed an on-site treatment plant to specifically suit the effluent and site conditions, capable of treating over 2,000,000 litres of spent caustic liquor over a 12-month period.
A Stage I sulphide reactor was placed up front, with the effluent then flowing into an dispersed air clarifier. Clarified effluent was then pumped forward for further chemical reactions, destroying phenols present in the spent caustic liquor. AdTech Megasorbers then polished the effluent to a quality sufficient for discharge to the refinery sewer.
All major process modules were transportable and at the completion of this job, some were moved to another oil refinery for inclusion in ongoing work.The main contaminants treated included Phenols, sulphides, heavy amine solvents and petroleum hydrocarbons at a flow rate of up to 80,000 litres per day.