4.2.2.2 Dewatering
Collected debris must be dewatered to reduce transportation
weight and therefore fuel consumption and cost,
as well as to minimize storage space.
Filters
Filters can be used to separate water from solid particles.
Typically, the filter has the shape of a screen or a
bag. When the filter is full, it needs to be replaced with
a new one.
Advantages
• Filters are available with very small mesh sizes, so the
smallest particles can easily be extracted from the
water.
Disad vantages
• A filter is only suitable for a certain size range,
depending on the mesh size. Larger parts could clog
the filters or even tear it apart.
• Filters are not suitable for large quantities of material
and might need to be replaced often, depending on the
material flow.