Noggerath®
Grit Washer
GW / GWL
More environmentally conscious disposal and significant reduction of costs by lowering the amount of organic matter in the washed grit.
Passavant-Geiger offers you the largest range of grit washing systems worldwide and the most comprehensive variety of constructional and process technological designs. We are, therefore, able to optimally tailor the sand treatment process to meet your specific requirements.
The Noggerath® Sand Washer GWC provides a significant reduction in the amount of residue grit for disposal and, therefore, considerable savings on transport costs are achieved. The recirculation of the washed organic matter leads to an increase in nutrient availability. This means that an addition of external carbon might not be necessary for the denitrification process and there is also an overall improvement in gas production in the sludge digestion.
Unique Features
- Significant reduction in disposal costs due to lowering of the percentage of organic matter to ≤ 3%
- Significant reduction in storage and transport costs due to reduction in mass of up to 85%, depending on the raw material
- Washed grit throughput 0.1 – 1.0 m³/h
- Coarse solids processible up to 35 mm
- Less fine sand discharge and lower wash water consumption
- Less turbulence in the washing zone and, therefore, a low ascending speed
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