Effects of Iron Nanoparticles Addition on Bacterial Community and Phytotoxicity in Aerobic Compost of Pig Manure

In China, the treatment of pig manure for land application is an important issue. this paper, green synthesized iron nanoparticles (G-nFe) were evaluated their effectiveness in aerobic composting manure. G-nFe evenly mixed into compost, and pH oxidation-reduction potential (ORP) compost presence both decreased. FTIR showed that promoted formation humus during composting. The addition (200 mL kg−1) to also bacterial growth, significantly increasing colony-forming units (CFU, up 25.6 × 104 CFU mL−1) OD600 (up 0.634) 5 days. Furthermore, fermentation manure, thus reducing phytotoxicity produced. For example, final volatile solids (VS) degradation rate seed germination index (GI) highest reached 20.8% 0.76%, respectively. Finally, improved diversity community richness compost. This indicated could result prolonging acidic time composting, leading increased maturity. Overall, beneficial impact on was far greater than harm communities perceived phytotoxicity.