Exploring the Influence of Biochar-Supported Nano-Iron Oxide on Phosphorus Speciation Transformation and Bacterial Community Structure in Aerobic Pig Manure Composting Processes DOI Creative Commons
Ning Yuan, Kang Wang, Meina Liang

et al.

Microorganisms, Journal Year: 2024, Volume and Issue: 12(12), P. 2593 - 2593

Published: Dec. 14, 2024

Existing studies have demonstrated the positive effects of nano-sized iron oxide on compost maturity, yet impact phosphorus speciation and bacterial communities during composting process remains unclear. In this study, pig manure straw were used as raw materials, with biochar-supported (BC-Fe3O4NPs) an additive calcium peroxide (CaO2) a co-agent, to conduct aerobic experiment manure. Four treatments tested: CK (control), F1 (1% BC-Fe3O4NPs), F2 (5% F3 BC-Fe3O4NPs + 5% CaO2). Key findings include following. (1) increased temperatures, reaching 61℃; showed optimal maturity (C/N ratio: 12.90). (2) promoted stable forms; Residual-P proportions higher in F1, F2, (25.81%, 51.16%, 51.68%) than (19.32%). (3) Bacterial phyla Firmicutes, Actinobacteria, Proteobacteria dominated. altered community composition, especially day 7. Firmicutes dominated CK, F3; F2. At genus level, 7 Corynebacterium (CK), Clostridum (F1, F3), Caldibacillus (F2) predominant. (4) Pearson correlation analysis revealed shifted correlations between forms after addition. positively correlated NaOH-OP thermophilic phase, facilitating phosphate release adsorption by BC-Fe3O4NPs. The significance diminished increasing concentration; F3, all various forms.

Language: Английский

Biochar-supported Fe₃O₄ nanoparticles affects bacterial community diversity and phosphorus speciation transformation during pig manure aerobic composting by generating hydroxyl radicals and hydrogen peroxide DOI
Ning Yuan, Kang Wang, Jia Zhou

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 115364 - 115364

Published: Jan. 1, 2025

Language: Английский

Citations

1
Effect of Fe and Ni loading in Fe-Ni supported on activated carbon catalyst on glycerol acetylation to acetins DOI

Mohammad Fauzi Ahmad Termezi,

Suhana Ahmad, Mohd Hizami Mohd Yusoff

et al.

Sustainable Chemistry for the Environment, Journal Year: 2025, Volume and Issue: 10, P. 100248 - 100248

Published: April 14, 2025

Language: Английский

Citations

0
Exploring the Influence of Biochar-Supported Nano-Iron Oxide on Phosphorus Speciation Transformation and Bacterial Community Structure in Aerobic Pig Manure Composting Processes DOI Creative Commons
Ning Yuan, Kang Wang, Meina Liang

et al.

Microorganisms, Journal Year: 2024, Volume and Issue: 12(12), P. 2593 - 2593

Published: Dec. 14, 2024

Existing studies have demonstrated the positive effects of nano-sized iron oxide on compost maturity, yet impact phosphorus speciation and bacterial communities during composting process remains unclear. In this study, pig manure straw were used as raw materials, with biochar-supported (BC-Fe3O4NPs) an additive calcium peroxide (CaO2) a co-agent, to conduct aerobic experiment manure. Four treatments tested: CK (control), F1 (1% BC-Fe3O4NPs), F2 (5% F3 BC-Fe3O4NPs + 5% CaO2). Key findings include following. (1) increased temperatures, reaching 61℃; showed optimal maturity (C/N ratio: 12.90). (2) promoted stable forms; Residual-P proportions higher in F1, F2, (25.81%, 51.16%, 51.68%) than (19.32%). (3) Bacterial phyla Firmicutes, Actinobacteria, Proteobacteria dominated. altered community composition, especially day 7. Firmicutes dominated CK, F3; F2. At genus level, 7 Corynebacterium (CK), Clostridum (F1, F3), Caldibacillus (F2) predominant. (4) Pearson correlation analysis revealed shifted correlations between forms after addition. positively correlated NaOH-OP thermophilic phase, facilitating phosphate release adsorption by BC-Fe3O4NPs. The significance diminished increasing concentration; F3, all various forms.

Language: Английский

Citations

0