Use of flocculated magnetic separation technology to treat Iraqi oilfield co-produced water for injection purpose

Bench-scale simulation of flocculated magnetic separation (FMS) technology was performed using a jar-tester to treat produced water from four Iraqi oilfields. The results revealed that effluent water with low oil content and suspended solid can be achieved. Settling time for FMS is several times less than that of conventional process. These features make FMS, followed by a polishing oil removal step, such as nutshell filters, attractive to treat Iraqi produced water for injection purpose.