Pre-packaged Drinking Water Filtration System, Australia

Background

Established in 1855 Royal Perth Hospital (RPH) is Western Australia’s longest-serving hospital.
The hospital’s mains water is supplied by the Water Corporation (principal supplier of water, wastewater and drainage services throughout Perth and WA).
To reduce the accumulation of various particles from the pipework and valves, the hospital reached the decision that the most cost-effective solution would be to filter the mains water instead of replacing the water infrastructure.

Challenge

Due to the location of the filter skid and the fact that there was no access to lifting equipment, the skid had to be engineered and constructed in such a way that would enable its disassembly and reassembly on site.

Solution

Mains water entering the hospital passes through the 2 x Watermark SAF 4500 (10 micron) self-cleaning filters in a duty assist configuration. Filtered water is then reticulated to the hospital.
The filters and controller are mounted on a 2-piece galvanized steel skid to allow for ease of installation and maintenance.

Components include:
• 100mm SS-316 manifolds -100mm Inlet/Outlet
• 100mm Water Mark pressure reducing, swing check and isolation valves
• Instruments (DP switch and gauges)
• Amiad proprietary filter controller

After establishing the customer’s needs and working with local fabricator/contactors, the skid was constructed to Amiad’s design and a local plumbing contractor was contracted to install the filter skid on site.

Results

The skid was successfully installed and commissioned according to the customers’ timeline.
The filtered water supplied to the hospital is less than 10 microns, and our results show an NTU removal rate of up to 40%.