... is used and the ash resulting from incineration of the sludge remains in the product. The inorganic substance of the ash of the incinerated sludge is also a compound of the cement clinker. This ... in the debarking, chipping, screening and cooking liquor clarification operations, in the maintenance of the plant and also in the treatment of fresh water and wastewater. 4.2. Papermaking ... and increased taxes, landfills are quickly being eliminated as a final destination for wastes in Europe, and incineration with energy recovery is becoming the main waste recovery method. Other...