Historically, there is evidence to suggest that communities in the developing countries
are still using plant-based materials as one of the strategies for purifying drinking
water. In this review, the coagulant properties of Moringa oleifera seeds extract were
quantitatively evaluated toward suitable wastewater treatment and examining its
coagulation mechanism. The seeds are rich in bio-active components and also used as
a natural coagulant for effective water treatment. The seeds extract operates
predominantly by bridging coagulation mechanism and operates through charge
neutralization. This natural ingredient of an organic polymer is essential as it contains
acrylamide monomers that are harmless to human’s health and lesser expensive as
compared to conventional chemicals since they are available in most rural
communities. The application of this readily available natural product as part of pointof-use
in water treatment technology may offer a practical, cheap, appropriate and
sustainable solution for producing potable water in some developing nations.