Managing the solid waste is one of the toughest tasks facing the process industry today. Utilization of wastes to get useful product is preferred in the view of disposal and economy. The technical characteristics of bricks made using tannery industry effluent treatment plant sludge were examined. The clay in the conventional brick making process was partially replaced with waste sludge up to 30% (w/w). Physio-Chemical properties of the sludge have been studied and reported. The tests on the brick specimens are conducted as per Bureau of Indian standards (BIS) specification codes. The percentage sludge addition and firing temperature were found to be the two key factors deciding the quality of the bricks formed. All the brick samples satisfied the requirements in terms of shrinkage and weight loss characteristics. However bricks with more than 6% sludge were found not to satisfy the prescribed norms for compressive strength at the maximum range of temperature condition studied. Thus tannery sludge up to 6% (w/w) can be effectively added to make first class brick material, satisfying all the norms specified.
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