Sewage treatment in Doha is set for a further enhancement as the Public Works Authority (Ashghal) is working on the upgrade of four sewage pumping stations. Ashghal, which is working on the New Slata, Al Mansoura, Al Messila and Al Rayyan pumping stations, has informed that the works will be completed by the second quarter of 2021, significantly increasing their capacity.
According to Ashghal, the capacity of the pumping stations will be increased by 62% to 211% in vital areas within Doha. As part of the project, upgrade and refurbishment works are being carried out to accommodate both current and future sewage flows within these important areas, and to cope with the future development and expected population growth.
The capacity of the New Slata pumping station will be increased by approximately 62%, allowing around 8,600 cubic metres per day to be pumped instead of the current 5,300 cubic metres. On the other hand, the capacity of the Al Messila pumping station capacity will be raised by approximately 211%, allowing 14,000 cubic metres per day to be pumped instead of the existing 4,500 cubic metres.
The Al Rayyan pumping station’s capacity will be increased by 161%, allowing the pumping of around 4,700 cubic metres per day instead of the current 1,800 cubic metres. The refurbishment works include the installation of new equipment to improve the pumping stations’ performance and functions with an upgrade of their control systems, including new telemetry systems, improved fire alarm and suppression systems, as well as new instrumentation, among others.
These are in addition to improved odour control systems to prevent or reduce odours in the surrounding areas. The New Slata, Al Messila and Al Rayyan pumping stations will undergo a “dramatic increase” in their ability to accommodate and pump sewage flows as opposed to the current capacity with the existing pumping stations and equipment. Upgrade works at the Al Mansoura pumping station include the installation of new equipment and construction of a new odour control unit to enable more efficient operations and to prevent odour.
In addition, the project includes the decommissioning of the Ras Abu Abboud pumping station, which is to be replaced by a new gravity sewer line. During the project implementation, Ashghal is also supporting local manufacturers by making use of locally made materials such as concrete, reinforced steel, precast manholes, glass-reinforced plastic (GRP) pipes and ducts, GRP tanks, unplasticised polyvinyl chloride pipes and conduits and reinforced concrete jacking pipes. Ashghal has ensured that these pipes meet the required quality standards and qualifications.
The works in progress.
