
Do you know what this giant leaky bag looks like? It's actually a geotube, a filter bag made of geotextile. It is often used in construction projects or in the waste treatment industry. Its function is to separate sludge from water. Geotextiles are engineered fabrics that have microscopic pores, small enough to hold solid particles but still allow water to pass through. When sludge is introduced into the geotextile, the water slowly escapes through the pores while the solid sediment remains inside.
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