One of Indah Water's vital services is refurbishment. The rehabilitation
work on existing plants with same capacity and/or treatment processes
will enhance the effectiveness and efficiency of such plants in
addition to improving the aesthetics. The process entails fairly-complex
works ranging from civil engineering aspects of safety, security,
cleanliness and aesthetics, to the highly-complex skilled mechanical
and electrical serviceability of the plants. Currently, over 5,408
public sewage treatment plants and pump stations are undergoing
total refurbishment.
Refurbishment work involves the tidying up of treatment plants
and pump stations with improved aesthetics and security; the repairing,
replacing and testing of pumps, float switches and associated
valves and pipeworks; the repairing, replacing and testing of
treatment process equipment; the desludging of plants including
holding tanks; the repairing, replacing and testing of High Voltage
and Low Voltage electrical services including electrical wiring,
control panels, lightning protection, etc; the sampling of effluents
to ensure applicable environmental standards are met; and the
inspection, repairing and/or replacement of critical sewer pipework.
It takes anywhere between three to 24 months to refurbish a plant.
Assuming one plant is fully refurbished in a day, it would take
over 14 years to refurbish all of Malaysia's public sewage treatment
plants. However, Indah Water aims to complete all refurbishment
on a priority basis within six years.
