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

Extreme thermophilic microbial inoculation for reducing NH3 and N2O emissions in hyperthermophilic aerobic composting of refinery waste activated sludge DOI

Xinge Fu,

Hui Zuo,

Zhouhao Wang

et al.

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 380, P. 124870 - 124870

Published: March 12, 2025

Language: Английский

Citations

0
Efficiency and mechanisms for enhancing nitrogen retention in distilled grain waste compost through a composting-biofiltration approach DOI

Shi-Peng Wang,

Zhao-Yong Sun, Songtao Wang

et al.

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 373, P. 123606 - 123606

Published: Dec. 4, 2024

Language: Английский

Citations

1
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