The phase 6 extension to the Sharjah sewage treatment works in the United Arab Emirates [UAE] has recently been opened, adding an additional 37 000 m(3) per day of sewage processing capacity to the existing facility. The expanded works was required to cope with the emirate's growing population, which is fuelling a boom In Infrastructure projects. The pound18 million [US$ 32.5 million] phase 6 project includes a new Inlet works, activated sludge aeration lanes, final effluent clarification, rapid gravity sand filtration, a final effluent pumping station with disinfection pipework, sludge thickening and dewatering, ancillary services and control mechanisms.