Home / New sewerage plant is to double capacity

New sewerage plant is to double capacity

Detailed designs and tender to be produced in 2005 to anticipate future demand

Dubai authorities have taken a decision to construct a major new sewage treatment plant to augment existing facilities and to meet future demand. The new plant will more than double the existing capacity in the emirate. Detailed designs and tender documents for the treatment plant, which will be operated by Dubai Municipality, will be drawn up and completed during the next year. Dubai Municipality plans to prequalify contractors for construction of the works, which will be tendered before the end of the year.

By 2008, Dubai Municipality plans to complete the construction of the first phase of the new treatment plant. The project will serve the existing and extensive new developments that are planned for the west of Dubai. The new plant will be located southeast of Jebel Ali village on a municipality site that is large enough to accommodate any future extensions to the sewage treatment facility as Dubai continues to expand and grow.

In recent years, the city of Dubai has powered a region-wide building boom putting stress on existing capacity of utilities. The two areas that have seen mushrooming developments have been along Sheikh Zayed Road up to Jebel Ali and in Al Warsan area.

Earlier this month, a team from Dubai Municipality led by the director of the irrigation and drainage department, Talib Abdul Karim Julfar, participated in a workshop organised by specialist design consultant MWH to evaluate design options for the scheme. Several options were put forward and each one of them included mechanical and natural processes. The presented options were evaluated in terms of both performance and whole life-cycle costs.

Evaluation categories have been determined by the municipality and include important tissues such as quality of treated effluent to ensure safe reuse; security of sludge recycling and disposal; odour control technologies which will provide a no-nuisance standard; process reliability and flexibility; environmental impact of the works, and health and safety both during construction and operation.

At the end of the meeting, it was decided that the conventional activated sludge process would be adopted as the main treatment process for the works supported by an incineration unit for sludge disposal.

This combination will not only meet the required standards for effluent re-use, but will provide a secure and reliable means for disposal of sludge which is a serious consideration in view of the ever increasing volumes of sludge being produced as sewage flows continue to increase in the emirate.

Although sludge incineration is widely practiced in Europe, the UAE in Dubai will be the first Gulf state to use the technology.

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