Al Ansab Sewage Treatment Plant

Wastewater treatment (MBR), 125,000 m3/day today; phase III adds about 82,000 m3/day to reach about 207,000 m3/day in Oman.

Operational

The record

Country: Oman
Location: Muscat
Coordinates: 23.580, 58.250
Technology: Wastewater treatment (MBR)
Capacity: 125,000 m3/day today; phase III adds about 82,000 m3/day to reach about 207,000 m3/day
Capital cost: —
Stage: Operational
Owner or client: Oman Wastewater Services Company (Haya Water)
Contractor: ACWA Services (process contractor); Kubota supplied the membranes
Operator: Haya Water
Finance: Government
Award or start year: 2010
Commissioned: 2010

Record last checked 2026-09-18.

8 references

Every field in the record above is taken from the references below. A field that none of them confirms prints as a dash.

Gulf Construction, Haya completes second phase of Oman STP, 1 September 2018. gulfconstructiononline.com.
Oman Observer, RO 207 million wastewater projects under way in Muscat, 12 December 2018. omanobserver.om.
Kubota, The imperative need to recycle limited water resources. kubota.com.
DMS Universe, Haya Water expansion of Al Ansab STP phase 2. dmsuniverse.com.
Nama Water Services, Request for Qualification: Strategic PPP Project for the Development and Operation of Sewage Treatment Plants (applications due 16 December 2025). nws.nama.om.
puts Al Ansab phase III at about 82,000 m3/day of new capacity, taking the plant from 125,000 to about 207,000 m3/day, tendered together with Al Amerat phase II. The MBR Site, ACWA case study, Al Ansab. thembrsite.com.
ACWA was awarded the technology contract to supply the membrane units and undertake process design; contract award 2005, completion 2008. The MBR Site directory. thembrsite.com.
MENA Water Review major projects register and PPP pipeline — compiled from procurer publications, development-bank project pages and trade reporting; each record names its source.

identifies the firm as ACWA Services, a specialist process contractor, not ACWA Power.