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N. M. Jais et al.
Raw fresh market
wastewater
Intake sump
Macerator
Rotating drum screen
Oil & grease removal
tank
Stabilizing basin
Aeration basin
Membrane biofilter
basin
Treated water basin
Fig. 4.1 Process of fresh market wastewater treatment plant in Kuala Lumpur
Jinjang River (Pasar Harian Selayang and Pasar Borong KL), Klang River, Bunus
River and Gombak River, respectively (KLCH 2016).
The membrane biofilter was chosen for the fresh market wastewater. The processes
of water treatment plants are demonstrated in Fig. 4.1.
Raw fresh market wastewater flows into the intake sump. In this stage, the wastewater flows to the coarse and fine screen to prevent rubbish and debris to enter the sump.
There are three submersible pumps for duty and standby. The basin depth is 5.0 m
which is controlled by ultrasonic level sensor. From inlet sump, the wastewater will
flow into inline macerator to grind large solids into small particles with size 4–5 mm.
Next, the fresh market wastewater flows to rotating drum screen to screen the small
particles with the size of 0.5 mm before flowing into oil and grease removal tank. The
purpose of this tank is to remove floating free oil with the disposal of oil and grease
had been recycled for fuel oil by licensed contractor registered with Department of
Environment Malaysia. The stabilizing basin is vital to store effluent with supplied
oxygen. The three submersible pumps were used, and the basin depth was controlled
by ultrasonic level sensor with maximum depth of 3.5 m with hydraulic retention time
of three to four hours to homogenize the pollutant loading. The diffuser membrane
material by Ethylene–Propylene–Diene Monomer (EPDM) was used with 1–3 mm
bubble size, and air flow rate is 5–8 m
3 /h. The fresh market wastewater from stabilizing basin will flow into aeration basin. This basin is important to remove suspended
solid, COD and BOD with the presence of bubble diffuser to increase biological
oxidation process. The oxidized effluent will decant into membrane biofilter basin
N. M. Jais et al.
Raw fresh market
wastewater
Intake sump
Macerator
Rotating drum screen
Oil & grease removal
tank
Stabilizing basin
Aeration basin
Membrane biofilter
basin
Treated water basin
Fig. 4.1 Process of fresh market wastewater treatment plant in Kuala Lumpur
Jinjang River (Pasar Harian Selayang and Pasar Borong KL), Klang River, Bunus
River and Gombak River, respectively (KLCH 2016).
The membrane biofilter was chosen for the fresh market wastewater. The processes
of water treatment plants are demonstrated in Fig. 4.1.
Raw fresh market wastewater flows into the intake sump. In this stage, the wastewater flows to the coarse and fine screen to prevent rubbish and debris to enter the sump.
There are three submersible pumps for duty and standby. The basin depth is 5.0 m
which is controlled by ultrasonic level sensor. From inlet sump, the wastewater will
flow into inline macerator to grind large solids into small particles with size 4–5 mm.
Next, the fresh market wastewater flows to rotating drum screen to screen the small
particles with the size of 0.5 mm before flowing into oil and grease removal tank. The
purpose of this tank is to remove floating free oil with the disposal of oil and grease
had been recycled for fuel oil by licensed contractor registered with Department of
Environment Malaysia. The stabilizing basin is vital to store effluent with supplied
oxygen. The three submersible pumps were used, and the basin depth was controlled
by ultrasonic level sensor with maximum depth of 3.5 m with hydraulic retention time
of three to four hours to homogenize the pollutant loading. The diffuser membrane
material by Ethylene–Propylene–Diene Monomer (EPDM) was used with 1–3 mm
bubble size, and air flow rate is 5–8 m
3 /h. The fresh market wastewater from stabilizing basin will flow into aeration basin. This basin is important to remove suspended
solid, COD and BOD with the presence of bubble diffuser to increase biological
oxidation process. The oxidized effluent will decant into membrane biofilter basin