Effect of composting on characterization and leaching of copper, manganese, and zinc from swine manure

摘要

This research was conducted to study the influence of composting on the concentrations, water solubility, and phase association of Cu, Mn, and zn from swine (sus domesticus) feces. Composting of separated swine manure was performed in two piles for 122 days. The metal concentrations increased rapidly during the first 49 days and leveled off thereafter. All metal concentrations increased approximately 2.7-fold in the final compost due to decomposition of organic matter.