Grit and other solid materials are a costly component of both process water and wastewater, clogging systems, reducing efficiencies and causing abrasion damage and wear that lead to increased cleaning, maintenance and repair.
Grit removal is the process used to remove sand, silt and grit from water.
Grit (and sand) removal is often found in the headworks of wastewater treatment plants (WWTP). Grit removal can also be used to remove sand from river water intakes prior to processing for potable water, use in industrial applications to remove fine abrasives, as well as being used to remove grit entrained in sludge.
Sand in treatment plants reduces process capacity and increases maintenance costs.
In WWTPs grit and other solid materials such as sugar sands and silt are a costly component of both process water and wastewater, clogging systems, reducing efficiencies and causing abrasion damage and wear that leads to increased cleaning, maintenance and repair. Conventional assumptions about the nature and behavior of grit mean that many grit removal systems may only be removing 30-50% of total suspended solids (TSS). That material is passing downstream, abrading critical systems and processes and gradually reducing the overall effectiveness of the facility. In many cases, operators may simply be unaware of how much grit they are missing.
Effective grit removal removes the abrasive solids and sand before they have the chance to enter other processes, erode expensive equipment, and deposit throughout a treatment plant.
