**Author details**

*Trace Metals in the Environment - New Approaches and Recent Advances*

(**Table 2**). The removal of iron in this experiment was lower than the research done by [37], which had a removal of 92.14%. The removal percentage of chromium in this research was higher than the research done by [39], which was only 60% and almost similar to [40], which was 73%. The copper removal efficiency in this research is approximately similar to the literature statement of [39], which was approximately 90%. The trend of the removal percentage of copper and chromium

*Moringa oleifera* leaves were used to remove Cd(II) from water, and the results showed that there are many parameters that affect the results, such as dose effect, contact time, particle size, pH, and water turbidity effect [10]. In this study, the pH value was insignificant, and other results showed that *Moringa oleifera* leaves are a potential alternative for heavy metal removal at a different percentage as shown in

This chapter focused on the potential use of natural material for heavy metal removal from water and wastewater. The *Moringa oleifera* seeds which can be processed to get the press cake (mechanical process) or cake residue (chemical process) using solvents can be applied to polluted water and remove heavy metals Fe, Cu,

*Moringa oleifera* leaves can be applied as a natural adsorbent to remove heavy metals from water (without any modification or chemical treatment); it is an environmentally friendly biosorbent. It is available in Malaysia and other tropical countries which make it a low-cost adsorbent with high biosorption capacity.

The author would like to thank Research & Innovation Department/Universiti Malaysia Pahang/Malaysia, for financial support to perform the research work for a

was found to be alike with the trend in the research done by [31, 41].

*The optimum results for Cd (II) removal with different parameters.*

*Heavy metal removal from Gebeng River, Kuantan, Malaysia.*

**268**

**Table 3**.

**Table 3.**

**Table 2.**

**4. Conclusions**

Cd, Pb, and Cr.

**Acknowledgements**

few projects which is summarised in this chapter.

Eman Noori Ali Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, Gambang, Kuantan, Pahang Darul Makmur, Malaysia

\*Address all correspondence to: iman129@gmail.com

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