Fertilizer From Pulp and Paper Waste: The Utility and ...
The U.S. pulp and paper industry produces 5 million Mg of solid waste each year in the form of sludge. Currently most of this waste is landfilled, but land application of sludge has several potential benefits. However, the utility of pulp and paper sludge as a fertilizer is hampered by its low nitrogen content. The purpose of this study is to improve the fertilizer quality of pulp and …