Indian scientists have developed a novel method of decomtaminating effluents from the the pulp and paper industry using chemical wastes from the same factory. The new method, devised by the Department of Chemisty, Guwahati University, Assam, exploits chemical wastes like hypo-sludge and coagulants like bamboo dust carbon (BDC) , prepared from waste babmoo dust, to remove the polluting load as well as colour from the effluents , reports a recent issue of the Indian Journal of Chemical of Technology.