Resumen
The utilization involves recycling sludge, coming from recycled paper. The sludge is generated during the manufacture of paper presses and has a dry content in an organic form of thirty five point two percent cellulose fiber. The remaining material is calcium carbonate. The pyrolysis of the sludge is effective for the heavy metal elimination e.g. copper, nickel, cadmium, zinc, lead and chromium of contaminated water in different concentrations.