– You Don’t Know What You’re Missing – Designing a Grit Removal System That Works

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Wastewater grit is often treated as an afterthought, yet wastewater treatment plants are significantly impacted by grit. Grit is a nuisance material, causing abrasive wear to equipment, increasing maintenance and operational costs and accumulating in processes throughout the plant, reducing processing capacity and efficiency over time.
Grit systems can work as intended when designed with an accurate understanding of the nature and characteristics of the grit arriving at the treatment plant and how this grit actually behaves in wastewater. An effective system addresses size as well as settleability, produces a clean dry product for landfill, and minimizes deposits and accumulations in the plant.
This presentation discusses grit system design criteria and provides guidelines for determining design requirements.