Wastewater Treatment Plants

Wastewater Treatment Plant (Food Processing Industry) Site : Lidcombe, NSW Completed : 2000 Capacity : 480 kL/ day Services : Design, Manufacture, Installation, Testing, Commissioning, Operator Training, Maintenance Special Features of the Wastewater Treatment Plant : The Wastewater Treatment Plant was designed to treat 480 kL/hour of wastewater from a vegetable processing operation, to meet Sydney Water discharge limits for TSS and pH. Project Description of the Wastewater Treatment Plant : Raw influent wastewater is collected and pumped to a rotary Contrashear screen, falling into a 60 kL 304 stainless steel balance tank. The chemically treated balanced effluent is pumped to a Dissolved Air Flotation (DAF) unit where coagulated and flocculated solids, oil and grease are bound to minute air bubbles and create a surface sludge. This sludge is slowly scraped from the surface and collected in an integral sludge hopper from where it is dewatered through a belt type filter press and collected in a refuse skip. The clarified effluent is pH adjusted prior to discharge to sewer through an electromagnetic totalising flow meter and three way diversion valve.