Manganese concentration level in Merlimau Water Treatment Plant, Jasin, Malacca / Noor Habibah Madi

The high complain on dirty water is high at Jasin District at Malacca, and from the previous data, the Manganese concentration level in raw water sources is abundant for water sources treated at Merlimau water treatment plant. Kesang River has low pH, so it contains high amount of heavy metal. The rapid development and increasing on the housing sectors, agriculture, recreational and industrial sectors contributes to contamination of Ke sang River as water source for Jasin District residential. Manganese if consumes overload can contributes to health effect such as neurological effect, tremor, lethargy, mental disturbance, increase muscle tone and ailment. This study was carried out to measure the manganese concentration level at Merlimau Water Treatment Plant and also analyzed the other selected parameter (chlorine residual, pH, turbidity, and ferum) in raw and treated water. The sampling location is at inlet and outlet of Merlimau Water Treatment Plant, which is the sampling size isl 20, 60 ofraw water and 60 of treated water. The samples was taken every day while dry weather for 60 days. The in situ and off situ analyzed was carried out to analyses the physical and chemical parameters by using HACH model equipment. From the result it shows that the there are violation on the manganese concentration in treated and raw water, with seven and 33 violation respectively, the sources of manganese at raw water sources come from the agriculture, industrial, housing and recreational sector at Jasin District. There are significance differences between manganese in treated and raw water with p value 0.00.The correlation exits between manganese concentration and selected parameter (pH, turbidity, ferum, and chlorine residue), means the manganese concentration was affluence by the other selected parameter in water, and there are no associations between the manganese concentrations and health effects and the hazard index shows value less than 1, so it means the potential chronic effects do not occur.