oilfield produced water treatment by coagulation at malaysia

oilfield produced water treatment by coagulation at malaysia
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  • How can oil field produced water be treated?
  • In the oil and gas industry, the production of oil field produced water is a common problem, especially in ageing fields. The current solution to produce water treatment is to partially treat the produced water through chemical means. However, little effort was taken into consideration to generate electricity through the treatment process.
  • What is oilfield-produced water (OPW)?
  • The water content in the produced liquid typically reaches 70–80% at this stage and may even exceed 90%. During the process of oil and gas exploitation, a substantial volume of formation water and injection water is discharged, commonly referred to as oilfield-produced water (OPW). The OPW is a complex and multifaceted mixture.
  • Where was sample of oilfield produced water from Malays Basin obtained?
  • Sample of oilfield produced water from Malays Basin was obtained from Petronas Carigali. The sample was at separator from Angsi field located at offshore Terengganu, Malaysia. Samples of produced water from Angsi field undergone microfiltration, coagulation–flocculation, forward and reverse osmosis were obtained.
  • What coagulant removes COD from oilfield PW?
  • Yan et al. reported that polymeric ferric sulfate (as a coagulant) could remove almost 80% of COD from oilfield PW. In another study, oilfield PW was treated with poly (silicate aluminum)/Fe 3 O 4 nanoparticles (PFeNPs) which is an inorganic polymeric coagulant, and up to 98% removal of TOC, turbidity, and calcium was attained .