1.1 Context Nowadays, the growth of industrial activity and the increase in water use around the world have led to the release of various pollutants such as toxic heavy metals in the aquatic environment. Industrial activity can also cause serious contamination of surface water, groundwater or the sea, entering the food chain causing toxic effects. Heavy metal ions such as copper, cadmium, lead, nickel and chromium are often found in industrial wastewater. Heavy metals are really dangerous because they can undergo a bioaccumulation process. They have the potential to accumulate within sensitive organs and tissues (Wong et al., 2009). Therefore, it is important to remove these heavy metals from wastewater before the situation becomes serious. There are many ways that can be used to remove these toxic heavy metals, such as chemical precipitation, ion exchange, membrane processes and adsorption on activated carbon, etc. However, such processes are often limited due to technical or economic restrictions. Therefore, there is another method that is low cost, easily obtainable, high efficiency in detoxifying very dilute effluents and, more importantly, no nutrient requirements. The biosorption process is the most promising method. It is a potential alternative to conventional processes for removing toxic metals from wastewater. In this project, extracting pectin from detached papaya serves as an adsorbent used to remove heavy metals. This way we can reduce removal costs. Papaya is also known as Carica Papaya in scientific name. It is a tropical fruit produced from the Carica tree, which many believe comes from Mexico and Central America. Papaya is rich in carotenes, antioxidants, flavonoids and... a paper medium... and bio-absorbent to remove heavy metals from water. Today papaya is grown everywhere. So it is available and papaya scraps are abundant everywhere as people only eat meat. In this study, the Arau Canal water source is used for the determination of heavy metal concentration in water. It is also about comparing the bioabsorbent capacity of pectin and modified pectin from detached papaya. 1.4 Objective The overall objective of this objective is to study the biosorbent capacity of pectin and modified pectin from detached papaya in removing heavy metals in drinking water. The specific objectives are the following: i. To extract pectin from peeled papaya. ii. Develop pectin as a low-cost biosorbent in the removal of heavy metals (Pb, Cu, Cd, Zn, and Cr) in drinking water. iii. Compare the bioabsorbent capacity of pectin and modified pectin from detached papaya.