Qatar tenders third phase of industrial wastewater scheme

15 December 2014

Pre-contract design and consultancy bids due on 11 January

Qatar’s Public Works Authority (Ashghal) is inviting bids for pre-contract design and consultancy services for the third phase of the expansion and upgrade of the industrial sewage treatment works near Doha, until 11 January 2015.

Phase 3 comprises a new 10,000 cubic-metre-a-day (cm/d) capacity plant on the same site alongside the existing Industrial Area Sewage Treatment Works (IASTW), 2 kilometres southwest of Doha Industrial Area (DIA).

It will treat high-strength industrial wastewaters generated from the southern phase of DIA. The existing plant, with biomembrane technology, does not effectively treat hazardous and toxic wastewaters originating from industrial sources, which contain high levels of non-biodegradable constituents.

Prequalification for consultants for the contract ended in October 2014.

The original IASTW had a capacity of 12,000 cm/d, but is currently treating more than 14,000 cm/d of industrial waste.

Construction works on the phase 2a expansion, which are being carried out by the local Petroserv, are due to be completed by the end of year 2014. The expansion goes beyond the original design capacity of 24,000 cm/d to total 30,000 cm/d, as a result of increased demand projections.

The phase 2b expansion design and build contract was awarded to Belgian/UAE Six Construct for QR237.5m ($65m). Construction is scheduled for completion in 2017. The expansion will add a further 24,000 cm/d of capacity to the plant in a separate and independent flow stream, with a maximum capacity of 30,000 cm/d.

Ashghal is also planning to make awards on the Inner Doha Resewerage Implementation Strategy (Idris). Bids for packages on the project were submitted in between February and October 2014.

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