Singleton Sewage Treatment Plant – Ultraviolet Disinfection System

Singleton Council

Singleton, New South Wales, Australia

Diona are designing and constructing a new ultraviolet (UV) disinfection system at the Singleton Sewage Treatment Plant (STP) to improve the quality of effluent being discharged to the environment.

The Singleton STP, owned and operated by the Singleton Council, has a design capacity of 20,000 equivalent persons and currently achieves tertiary treatment via extended aeration (IDEA) lagoons, effluent catch ponds, and an effluent maturation lagoon. The effluent from the effluent pond is currently discharged to an ephemeral stream which drains to Doughboy Hollow, and then onto the Hunter River.

A new ultraviolet (UV) disinfection system downstream of the maturation pond is required to improve the quality of effluent being discharged to the environment to meet the Environmental Protection Authority (EPA) issued Environmental Protection License (EPL).

The works will be undertaken within in close proximity to Doughboy Hollow Creek. Construction and temporary works will be carried out in strict compliance with “The Protection of the Environment Act (1997) and associated Environmental Protection Regulations and Policies”.

Diona will create site specific Health, Safety, Environmental and Quality management plans in accordance with the client requirements. A site specific Safety Work Method Statement (SWMS) and methodology will be developed to ensure the safe execution of the works.