Dowdens Pumping and Water Treatment were contracted by Origin Energy to design, manufacture, supply, install and commission a Rotating Biological Contactor (RBC) and Ultrafiltration (UF) Sewage Treatment Plant (STP) for a 200 man work camp located at their Spring Gully site – Euthulla (near Roma).
Origin Energy required a Sewage Treatment Plant for a 200 man work camp located at their Spring Gully site. The treated effluent needed to be discharged to an onsite Pongamia plantation via an irrigation system in accordance with criteria from the Class A recycled water guidelines.
Incoming raw sewage is deposited in primary holding/settling tanks where primary settlement and anaerobic digestion occurs.
The retention capacity in the holding tanks ensured proper settling of biosolids and anaerobic digestion occurred. The settling tank effluent then flows through to the rotating disc stage, where aerobic treatment takes place.
Effluent from the rotating disc stage then passes through the clarifier. Treated effluent from the clarifier is pumped through the UF system to reduce the suspended solids level to meet the final treated effluent quality.
The effluent is dosed with liquid chlorine enabling effective disinfection before use for onsite plantation irrigation.
Dowdens Pumping & Water Treatment design philosophy for this project was
STP Components:
Class ‘A’ UF Polishing System Components:
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