Desalination & Reuse Handbook - Flipbook - Page 58
IDA
WATER SECURITY
HANDBOOK
Featured Reuse Plants
BEENYUP ADVANCED WATER
RECYCLING PLANT
The Beenyup Advanced Water Recycling Plant forms part of the
Water Corporation of Western Australia’s Beenyup Groundwater
Replenishment Scheme, injecting highly treated wastewater into
key aquifers in the Perth area. Treated effluent from the Beenyup
Water Treatment Plant is fed into the advanced water recycling
plant (AWRP) involving UF, RO and UV disinfection stages. On
completion of phase two of the project in 2019, the project will
deliver 28 billion L/yr (38,356 m3/d) into the Gnangara water
system – making up a significant portion of the 70–100 billion
litres of water supply augmentation envisaged by 2060 in Western
Australia’s Water Forever plan.
The two-phase construction schedule involved a project cost
of AUD124.6 million ($90 million) for the first stage, and
AUD113 million ($81.6 million) for plant duplication in the second
stage. A further AUD161 million ($116 million) is budgeted for
related infrastructure for stage two of the project, which will
include a 13 km recharge pipe and two recharge sites with four
additional recharge boreholes.
A contract to design, build and commission stage one of the
project was awarded to a Thiess/CH2M joint venture in 2014, with
construction of stage two awarded to a Clough/Suez joint venture
in 2017. Operations on both projects will be carried out by Aroona
Alliance, a 10-year integrated alliance consisting of Degrémont
(now Suez), Ferrovial-owned Transfield Services, and the Water
Corporation of Western Australia (WCWA), the client for the project.
UF pretreatment uses 8 skids of 120 Dow SFD-2880 UF
membranes, and the plant’s RO system uses 4 H&E-designed
RO skids and Hydranautics ESPA2 LD membranes in a 70:35
configuration, operating at a pressure of 600 kPa. The facility uses
2 Calgon Carbon ‘Sentinal 24’ UV units for disinfection.
Before pursuing aquifer recharge, the Water Corporation carried
out an extensive community engagement programme modelled
on the successful example of Orange County’s Groundwater
Replenishment Scheme. Against a backdrop of widespread
public opposition to potable reuse of water in Australia, a Perth
survey found approval ratings of 79% for the project in 2016, the
year before the first stage of the project was approved to begin
groundwater recharge.
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