Abstract
Currently, as the population continues to grow, the preservation of the
world’s water resources is becoming a serious challenge. The seawater
desalination process is considered a sustainable option for the future.
The two most common technologies used in desalination are reverse
osmosis (RO) and membrane distillation (MD). However, membrane fouling
caused by the accumulation of contaminants membrane surface is an
emerging and growing problem. then a pre-treatment stage is required to
reach an optimal efficiency during desalination process, since this
stage is crucial for a successful desalination process. In this regard,
developing new material-based composite membranes has the potential to
upgrade the anti-fouling features of RO membranes and thereby enhance
the desalination efficiency due to the characteristics of these
composite membranes especially, their high permeability, hydrophilicity,
selectivity mechanical strength, thermal stability, and anti-bacterial
property. The objective of this review is to present the main techniques
for seawater pre-treatment. the results of several membrane types and
methods of modification were also discussed. Finally, the performance of
composite membranes for seawater pre-treatment is defined and future
perspectives are highlighted.