Today, the 4th day of our posting started well with En Rahimy b.Ibrahimn (PPKP) taking us on field trip for water sampling and later En Sharimarr briefed us about water treatment plant. Here is the summary of what we have seen and learned in today's session.
Water for drinking, culinary and other domestic use should be safe, palatable and aesthetically appealing. KMAM which stands for Kualiti Mutu Air Minum held activities in district level in order to increases the health status of residents, provide them water supply which is safe, sufficient and can be used for all purposes.
Water sampling
In terms of water sampling 4 parameters are usually tested:
1) physical-(pH,turbidity,residual chlorine) and micrbiological test.
2)Kimia Pendek: Metal,hardness,F,Cl,SO4,NH3,NO2,NO3.
3)Kimia Panjang: Metal,hardness,F,Cl,SO4,NH3,NO2,NO3 and Trihalomethane .
4) Metal,hardness,F,Cl,SO4,NH3,NO2,NO3 and Trihalomethane and Pesticides.
Note:
Sodium Thiosulphate in the Whirl-Pak is used to neutralize the Chlorine.The sample is kept in the cool box before sending it to the lab.(has to be sent within 24hours or else it will be rejected)
Water treatment Plant:
The Pelubang Water Treatment Plant is one of the biggest in the state of Kedah.It was constructed in the year of 1984 and began to operate in 1987. It is located in Kubang Pasu district,about 11Km from Jitra town and has a capacity to provide 60 million gallons of clean water per day to Kubang Pasu,Kota Star and Yan.
This facility treats and filter raw water from the river to ensure that the water provided to the public is clean and safe for consumption in accordance to the National Water Quality Guidelines 1983.
There are 10 steps in the treatment of water:
1)Screening.
2)Grit.
3)Aeration.
4)Chemical Coagulation and Flocculation.
5)Settlement.
6)Filtration.
7)Chlorination.
8) Fluoridation.
9)Conditioning.
10)Quality Assurance.
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