- CASE STUDIES
Managing the increasing oil content of wash water associated with the desalter unit as well as tank bottom draws from crude oil reception operations is becoming more challenging for refining companies. BP Lingen refinery has to manage oily hard-to-treat desalter brine that can disrupt the operation of their wastewater treatment plant and negatively impact the bottom line. Handling oily wastewaters with high and variable contents of O&G and TSS requires complex and costly treatment trains.
BP Lingen wanted to reach minimum oil-in-water quality with water desalter effluent before sending it to biological treatment with minimal operating costs
Pilot tests were done with flowrates of 100-200 l/h. Different membrane materials and geometries were tested, i.e. Al2O3 and SiC, hollow fiber and flat sheet.
All membranes removed the oil concentration to less than 10 ppm, in most cases less than 5 ppm.