Petrobras, Brazil


Product:         Geotube® Dewatering Technology

Application:   Mining & Mineral Processing

Location:       Petrobras, Brazil


The Challenge:

Dewater 10,500 cubic yards of contaminated sludge from three lagoons at a chemical processing plant in Brazil.  Sludge measured BOD at 60,960 mg/l and COD of 143,000 mg/l.  The solids were 8.9% in situ.

The Solution:

Three Geotube® dewatering containers (60' circumference x 200' long) were deployed in a dry lagoon area to contain and dewater the sludge.  As stone was not available locally, the project managers used wooden pallets as drainage media [photo 3].

The Results:

The Geotube® dewatering process was extremely efficient [photo 4].  The Geotube® system removed 99.4% of all solids, reduced BOD by 98.1%, and reduced COD by 99.2%.