Wednesday, February 25, 2009

VBC3000 : Make ceramic products from sludges

Vbc 3000 is a french company, established in February 2003. Based in Ferrières en Bray (in department Seine Maritime) vbc 3000’s objective is to retain and commercialize the patent of a process to transform organic sludges from treatment plants into ceramic materials. 

The vBc3000 process enables the dual transformation of sewerage treatment sludge and clayey by-products which would otherwise be thrown away.The process exploits and optimizes the mineral and calorific content of the raw materials so that it only needs minimal energy input from fossil fuels. Starting from these base raw materials, vBc3000 produces ceramic materials which meet the needs of constructions built to High Environmental Quality standards.VBc3000 bricks and lightened granules are substitution materials that help to preserve limited natural resources.

.The vbc3000 process comprises the mixing of partially dried sludges with clay followed by shaping to form the required products such as bricks or granules. These are then dried and heated to a temperature of about 1000 to 1200°C according to the type of clay used.The drying of the materials then their heating with a temperature about 1000 to 1200 according to the kind of the used clay..

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During the heating process the mineralization of the organic content of the sludges creates porosity in the material that reduces density or even expands the material and releases the necessary energy for the process to work. The heavy metals present in the sludge and clayey minerals are thereby trapped in the ceramic matrix.The vbc3000 process also demonstrates the advantage of being able to combine the following up-stream materials as the clay matrix : rubble and hardcore from public works, clayey fines washed out from mineral extraction processes, and sediments from dredging and flushing-out operations.Vbc3000’s ceramic products, with high added technical value, can therefore be seen as the result of a double transformation of materials usually thrown away and of sludges. 


Source : VBC 3000

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