Body for use in system for cleaning wastewater for cleaning surface, has components of sludge composition containing in fluid and is floating through porosity into fluid

摘要

The body has components of the sludge composition containing in the fluid and is floating through porosity into the fluid, where the body is in contact with a sludge composition. Independent claims are included for the following: (1) a method for cleaning a surface; and (2) a device for manufacturing a body for cleaning a surface.