How does the dewatering process contribute to water conservation efforts?

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The dewatering process conserves water by recovering millions of litres per day from water treatment residue and returning it to PBAPP’s supply system rather than discharging it to the river.

The process begins at the Sungai Dua Dewatering Plant (SDDP), where residue from water treatment is treated using belt press dewatering technology to separate water from solids. The recovered water is then returned to PBAPP’s water supply system, while the remaining alum sludge is sent to AAK for brick production. The technology enables recovery of about nine million litres of water per day that would otherwise have been discharged into the river, which is sufficient for the daily needs of between 10,000 and 12,000 households.
Water is separated from solids at SDDP using belt press dewatering
At SDDP, residue generated during the water treatment process undergoes belt press dewatering technology. This step physically separates water from solids so that the liquid portion can be reclaimed instead of being treated only as waste.
Recovered water is fed back into PBAPP’s water supply system
After the separation, the recovered water is returned to PBAPP’s water supply system. In the same workflow, the remaining alum sludge is transported to AAK’s brick manufacturing facility in Bukit Minyak, linking residue handling to both water reclamation and construction material production.
About nine million litres per day are prevented from being discharged to the river
The belt press dewatering technology enables recovery of roughly nine million litres of water per day. Without this recovery, that volume would otherwise have been discharged into the river, meaning the process directly supports water conservation by keeping that water within the supply chain.
The recovered volume can meet household demand each day
The reclaimed amount is described as enough to cover the daily water needs of between 10,000 and 12,000 households. This household-equivalent framing ties the dewatering output to practical water availability rather than only waste reduction.

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How does the dewatering process contribute to water conservation efforts?

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