1 of 2 Municipal Wastewater Treatment Hong Kong, China Wastewater Treatment Upgrade with Toray's MEMBRAYTM Membrane Bioreactor at Mui Wo Sewage Treatment Works PROJECT BACKGROUND Mui Wo is a rural town located in Lantau Island, Hong Kong, with one of its main attractions being Silver Mine Bay and Beach. Rises in population and tourism to this region have resulted in an increased volume of sewage and the need to upgrade the existing wastewater treatment system. Mui Wo Sewage Treatment Works (MWSTW) was commissioned in 1985 to treat sewage water via conventional secondary treatment consisting of screening and degritting facilities, an oxidation ditch, and ultraviolet (UV) disinfection. With a capacity of 1,190 cubic meters per day, MWSTW treats wastewater from Mui Wo's sewer

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