BACKGROUND Sharjah, located just north of Dubai on the Persian Gulf, is United Arab Emirates’ (UAE) third largest city. As Sharjah’s population flourished and environmental regulations tightened, so did the stress on their wastewater treatment facilities. With limited space for physical expansion, the treatment plants needed a solution to treat the higher flows and meet the new Total Nitrogen (TN) effluent limits. Sharjah retained the services of a global engineering firm to evaluate their treatment requirements and recommend a workable solution; ideally a process that would fit seamlessly into existing tanks.

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