Doha North may include incineration unit

11 December 2007
The Doha North sewage treatment plant, which is due to open in 2011, may include the GCC’s first sludge incineration unit, according to Jalal Salhi, manager of drainage projects at the Public Works Authority of Qatar.

“We are looking into an incinerator scheme for the sludge,” Salhi told the MEED Wastewater conference. “We have not yet decided which way to go, but we hope to make a decision this month or next.”
He said Doha North is considering a zero-fuel technology which will use sewage sludge instead of gas to generate the treatment plant’s power.
Doha North is projected to produce 200 tonnes of sludge a day.
Salhi said that Doha North has identified uses for all 127,000 cubic metres of treated sewage that it produces every day.
“By 2030, treated sewage production will rise to more than 300,000 cubic metres and we will have a daily surplus of 124,000 cubic metres. We shall produce very good quality sewage so it can be used by other industries such as cooling and cement.”
The 245,000 cubic-metre a day Doha North plant is designed to meet the needs of the northern suburbs of Qatar’s capital as well as new developments in the area including the Pearl.
Doha North is being built in a series of contracts that will all be awarded by the start of 2008.
The main contractor for the sewage treatment works is Keppel of Singapore.

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