There have been many studies on the use of organically derived fertilizer on soils.This research has focused on both the efficacy and safety of the use of organically derived fertilizer as a soil amendment and a soil conditioner.Here is a selection of relevant research studies:

Global Atlas of Excreta, Wastewater Sludge, and Management: Moving Forward the Sustainable and Welcome uses of a Global Resource

Biosolids – A Fuel or a Waste

Assessing the Fate and Significance of Microconstituents and Pathogens in Sewage Sludge

Examples of Scientific Studies Relating to the Use of Biosolids

Surveys, Literature Review and Analytical Results for Biosolids

General Information

General Research

Research on land application of biosolids

Research on pharmaceuticals and personal care products (PPCPs) in biosolids

Research on pathogens and veterinary medicines in biosolids

Research on the use of biosolids for land reclamation and forestry projects