Preliminary study on pretreatment of polluted water in Gali River Kelantan using moringa oleifera seeds extract

Water continuously faces the possibility of being polluted easily due to its strong solvent capacity. The rate of water pollution has accelerated much more than that of other pollution domains as a result of the discharge of numerous noxious substances into it. The samples were collected at three different area of Gali River, Bachok Kelantan. The aim of this study is to treat the polluted river by natural coagulant. Moringa oleifera is used to determine the effectiveness of seeds powder by using different dosages as water purifier. The quality of water was studied at Kandis Jetty, Kampung Beris Lalang and near garbage site. The water quality was tested by using different dosages of Moringa oleifera, 0.5g, 1.0g, 1.5g and 2.0g. Then it was analysed using turbidity meter, pH meter and Atomic Absorption spectroscopy (AAS). The findings of the studies from 1.5g onwards of Moringa shows significant differences on the contaminated water sample. Moreover, the water sample has been contaminated with iron element compare to other elements because the garbage site. After the treatment, the concentration of lead ion has decreased. It is concluded that, Moringa was found to improve in removing turbidity from synthetic raw water.