DELIVERING PACKAGE GAS CHLORINATION AND FLUORIDATION IN THE TOP END

摘要

This paper focuses on the challenges associated with the design, delivery, commissioning and ongoing operation and maintenance of package gas chlorination and fluoridation plants in six remote communities in the top end of the Northern Territory. The project has progressed from design and construction of six complete systems through to commissioning and operation of combined gas chlorination/fluoridation facilities in three communities. It is expected that all six communities will be operating by mid-2013. Of the six communities, three are accessible only by sea or air. Three communities can be accessed by road for a limited window during the dry season of three to four months. For the remainder of the year they are cut off by flood waters and accessible by air and/or sea only. Major design considerations were related to location, lack of trained operational staff, limited communications with Darwin, logistical issues with installation and chemical deliveries, and limited access to emergency services.