Septage Acceptance Plant

Lakeside’s Raptor^® Septage Acceptance Plant (SAP) is a self-contained, fully automatic unit designed to remove debris and inorganic solids that typically pass through a conventional bar screen. The innovative screening technology of the Raptor^® Fine Screen is the basis for the SAP, and it apart from the competition. Lakeside’s heavy-duty 3-plane Fine Screen is one of few screens on the market equipped with a rotating rake that passes through the full depth of the basket bars, removing debris from the screening area. The rotating rake deposits the collected screenings into a central screw conveyor hopper that leads to the transport tube.

Screenings are spray washed in two stages to return organic materials to the liquid stream.  The first wash is over the screen basket and the second takes place in the transport tube – just before the compaction zone – to wash organics into the flow stream.  The all stainless steel shafted screw conveyor transports washed screenings to the discharge chute. When debris drops to the storage container, the total solids content is typically over 40 percent and will pass the EPA paint filter test.

The optional hauler access system features a PIN keypad where haulers can activate the system. As an upgrade, a printer at the station supplies receipts, noting the time and date of an unload, and operators can print summary reports of all loads. When inline flow meters are added, the receipts and reports include the size of each load.

The Lakeside Automated Data Acquisition System is a software system with client and server components designed to retrieve information directly from the hauler access system and flow meters, and store it in a database. The information is then used for data management and/or billing on a standalone computer or the plant’s network.

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Columbia, MO

Wheaton, IL

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