ABSTRACT
Land application of sewage sludge generated by domestic sewage treatment is performed in an environmentally safe and cost-effective manner in many communities. Land application involves taking advantage of the fertilizing and soil conditioning properties of sewage sludge by spreading the sewage sludge on the soil surface, incorporating or injecting the sewage sludge into soil, or spraying the sewage sludge. Land application of sewage sludge has been practiced in many countries for centuries so that the nutrients and organic matter in sewage sludge can be beneficially used to grow crops or other vegetation. The manual is intended to provide general guidance and basic information on the planning, design, and operation of sewage sludge land application projects for one or more of the following design practices. There are: agricultural land application, forest land application, land application at reclamation sites and land application at public contact sites.
