Landmark Al Ansab WWt plant begins operation
22 March 2011, News release from ACWA Services
ACWA's MBR flagship Al Ansab wastewater treatment plant in the Bausher region of Oman has officially begun operating following an opening ceremony attended by HE Ahmad Abdul Nabi Macki, the country's Minister of National Economy and Deputy Chairman of the Financial & Energy Resources Council.
The event was also attended by a number of senior government officials, press and key society figures. In his inaugural speech, Engineer Omar al Wahaibi, CEO of Haya Water, noted: "We are witnessing today the launch of one of the essential parts of Muscat's water reuse project which started in 2005 aiming to connect more than 90% of the population to the new network."
"The Bausher project was among the first phases of the project, and we meet today to celebrate this achievement, an achievement for Haya and everyone else who contributed in the success of it."
"The city has suffered for many years without a sewage system and now this network and the link station for wastewater treatment with a production capacity of up to 50,000 cubic metres per day of treated water, will be used for irrigation purposes." Added al Wahaibi.
The Al Ansab plant is the cornerstone of the country's wastewater reuse strategy, providing a solution to its pressing requirement for cost-effective irrigation water. The plant's initial treatment capacity is 76,000m3/day of treated wastewater.
Al Ansab is one of the largest submerged membrane bioreactors (SMBRs) in the world, utilising a Kubota system that teams a high level of treatment and good energy efficiency with a very small footprint, ideal for the restricted space available on the site.
The plant produces an extremely high quality effluent that contains very little bacteria and extremely low levels of suspended solids, BOD and colour, meaning it can be used directly for irrigation and a range of other potential applications. It also has a key additional role as the central monitoring unit for all treatment plants and networks in Muscat.
ACWA was awarded the technology contract to supply the membrane units, undertake process design and assist with detailed design, engineering, installation and commissioning because of the reliability of the Kubota system and the company's extensive previous experience with SMBR plants.
This first stage will be followed by other stages, with the production capacity increasing in line with demand to an envisaged ultimate population equivalent of 900,000, some 220,000m3/day. The aim is to serve 80% of the population in the six wilayats (districts) of Greater Muscat by the end of 2014, increasing to 90% by the end of a further three years.
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