Beneficial Use of Secondary Residual, 2003 Environmental Conference Proceedings
After the completion of Georgia-Pacific’s new secondary fiber mill in 1992, the facility was required to develop alternatives to land filling the sludge generated by the secondary fiber process. Georgia Pacific first developed a
matrix of possible beneficial uses for the material, and then ranked each alternative against a set of critical factors. Since land application as a liming product appeared to provide the biggest benefit with the least cost, the facility together with Agritech, a local agricultural contractor, decided to run a pilot study. Success with the initial pilot study led to a larger demonstration study that further proved the material could increase soil pH and enhance crop growth. Since these initial studies, the use of Georgia-Pacific’s secondary fiber sludge as a soil amendment has steadily increased to approximately 60,000 ADST per year.