With the rapid population growth, economic
progress in addition to the global climate change (global
warming), the demand for saving the limited natural
resources become a huge challenge facing the world.
Water is one of the natural resources that has become
increasingly scarce and many of them are polluted by
various human activities. Moreover, discharge
untreated wastewater into surface waters such as river
and lakes can causes human health problems and harm
huge on the environmental through the negative impact
on the wildlife, marine life and plants, as well as
groundwater and surface runoff (stormwater,
meltwater, rainwater) which can become polluted and
can be lead also to negative economic impacts.
Therefore, technologies of wastewater treatment have
received global attention. The main objective of this
paper is presents a literature review of some of the
popular wastewater treatment techniques.
Keywords : wastewater; sludge; Membrane; SBR