An overview on the progress in produced water desalination by membrane-based technology

The scarcity of clean water sources has become a global concern in the present-day society. This has driven to the extraction of fresh water from produced water (PW), from the oil and gas fields, specifically in countries experiencing freshwater shortage. Hence, utilization of membrane-based desalination technology to the treat-ment of produced water opens new avenues for water recovery. This review focuses on membrane-based pro-cesses for treating produced water from various sources in both stand-alone and hybrid systems. Nowadays, reverse osmosis (RO) technology has been widely used for treating PW, and at the same time emerging tech-nologies, such as forward osmosis (FO), and membrane distillation (MD) are continuously advancing for the PW treatment process. Additionally, different pilot scale studies on the PW treatment carried out have been discussed in this work. Moreover, challenges of using the current membrane-based technologies for PW treatment have been analyzed in this study along with the future outlooks. It is anticipated that this review would provide benefits for the desalination scientific community to extract fresh water from PW using membrane-based technology.

Automated summary

The utilization of membrane-based technology for the treatment of produced water is a new approach for water recovery. Reverse osmosis technology is widely used, and emerging technologies such as forward osmosis and membrane distillation are advancing. This study also discusses pilot scale studies and the challenges and future outlooks of using membrane-based technologies for produced water treatment.