Green bricks

The disposal of chrome-sludge continues to pose an environmental
challenge. A tripartite collaboration
between the Central Leather
Research Institute in Madras,
Regional Research Laboratory
in Trivandrum and the TNO
Institute of Applied Physics-Eindhoven in The Netherlands, has
led to a major breakthrough in
chrome-sludge utilisation for
converting it into coloured brick
manufacture.

A viable technology which can
be adopted for making coloured
brick from a clay and chromesludge mixture was developed and
tested at the rate of 5,000 bricks-per-batch. The 'bricks have also been
subjected to successful chrome
leachability tests .