Yes, it is a golden opportunity... never I imagine of visiting every water treatment plant in Segamat, Johor. Thanks to Ranhill SAJ Segamat gave me a chance to have site visit in every water treatment plant. The water treatment plant located at 8 different places which are WTP Kampung Tengah1, WTP Kampung Tengah2, WTP Air Panas A, WTP Air Panas C, WTP Jementah, WTP Bukit Hampar, WTP Palong Timur, WTP Pemanis and one dam which is Juaseh dam.
Below I attached few pictures of every water treatment plant that I have visited. From every site visit I gain new experience and knowledge about water treatment. Some water treatment have slightly different treatment due to its raw water source. Moreover overall the water treatment plant is conventional type in which the process flow can be describe as follows;
The front view of WTP Pemanis
At WTP Pemanis I able to learn the backwashing process of filtration tank. Firstly, the water was allowed to flow to the scour channel. Then the air scour inlet is fully opened. The blower will start and run about 5 minutes. The air that is blown into the filter will assist in breaking up the mud ball that might exist into suspension particles. The test was carried to observe the uniform pattern of air blown to the filter tank.
The backwash process of filtration tank
Next, at WTP Air Panas C, I able to observe the larger scale of chemical mixing tank which also by a special program. The program called SCADA system, from this system the operator can easily monitor the amount of chemicals in the mixing tank of every chemicals and also determine whether the equipment such as pumps at water treatment plant functioning well or not.
The view of chemical building at WTP Air Panas C
(a) (b)
(a)SCADA system controlling treated water pumping station, (b) SCADA system controlling chlorination.
Moreover, at WTP Air Panas C there were special treatment for sludge which using the sludge lagoon. The lagoon function to collect the sludge before disposal.
Sludge Lagoon
Other sludge treatment include Geotube. This sludge treatment I observe at WTP Palong Timur. The sludge will be processed with polymer and kept in Geotube that can be filled up to 1m height.
Geotube at WTP Palong Timur
To end, this so far my favorite site visit. I went to Juaseh Dam, Juaseh Dam located about 10 km from Labis and 42 km from Segamat town. The dam is about 220 m length and 30 m height. The rain catchment area is 29 km2.
Picture of me with one of the intern at Juaseh Dam