The advanced Sanitaire ICEAS process is a fully-automated and simple-to-operate biological treatment system:
The three phases common to all ICEAS process cycles:
During the react phase, raw wastewater flows into the pre-react zone continuously to react with the mixed liquor suspended solids. Depending on the treatment objectives, the react phase will have periods of aeration, anoxic mixing, anaerobic conditions, or a combination thereof. As the basin continues to fill, biological oxidation/reduction reactions take place simultaneously to treat the wastewater.
During the settle phase, basin agitation from the react phase (aeration and/or mixing) is stopped to allow the solids to settle to the bottom of the basin. Raw wastewater continues to flow into the pre-react zone as the main-react zone settles. As the solids settle, a clear layer of water will remain on top of the basin.
During the decant phase, the decanter rotates downward to draw off the clear, treated water for discharge to the effluent line. Raw wastewater continues to flow into the pre-react zone during the decant phase. Sludge is typically wasted from the basin during this phase of the cycle.
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