Impact of Biochar-Supported Nano-Iron Oxide on Composting
Author Information
Author(s): Yuan Ning, Wang Kang, Liang Mengyue, Zhou Jia, Yu Rui
Primary Institution: College of Geographic Science, Harbin Normal University
Hypothesis
BC-Fe3O4NPs and CaO2 will influence the transformation of phosphorus species towards more stable forms.
Conclusion
The addition of BC-Fe3O4NPs, especially with CaO2, significantly enhanced composting by increasing temperatures, promoting stable phosphorus forms, and altering bacterial community structure.
Supporting Evidence
- BC-Fe3O4NPs increased compost temperatures, with F3 reaching 61℃.
- Residual-P proportions were higher in F1, F2, and F3 than CK.
- Bacterial phyla Firmicutes, Actinobacteria, and Proteobacteria dominated.
- Pearson correlation analysis revealed shifted correlations between phosphorus forms and bacterial phyla after BC-Fe3O4NPs addition.
Takeaway
Adding special materials to pig manure compost helps make it better for plants and changes the tiny living things in the compost.
Methodology
A 50-day aerobic composting experiment was conducted using pig manure and straw with varying concentrations of BC-Fe3O4NPs and CaO2.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website