Enhanced effect of ferrous sulfate on nitrogen retention and PBAT degradation during co-composting by combing with biochar-loaded FN1 bacterial composites

The treatment of biodegradable plastics through composting has garnered increasing attention. This study aimed to investigate the effects of Biochar FN1 bacteria and ferrous sulfate on nitrogen retention, greenhouse gas emissions, and degradable plastics during composting and to elucidate their syne...

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Bibliographic Details
Published in:Journal of environmental management 2024-12, Vol.373, p.123749, Article 123749
Main Authors: Cao, Long, Wang, Linshan, Qi, Yanjiao, Yang, Shen, Gao, Jiazhi, Liu, Qiang, Song, Lisha, Hu, Run, Wang, Zifan, Zhang, Hong
Format: Article
Language:English
Subjects:
Bacterial community
Biodegradable plastic
Composting
Degradation
Nitrogen retention
Nitrogen-fixing bacteria
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Summary:The treatment of biodegradable plastics through composting has garnered increasing attention. This study aimed to investigate the effects of Biochar FN1 bacteria and ferrous sulfate on nitrogen retention, greenhouse gas emissions, and degradable plastics during composting and to elucidate their synergistic mechanisms on microbial communities. Compared with the control, applying biochar-loaded FN1 bacteria composites combined with Ferrous sulfate (SGC) markedly accelerated organic matter degradation and reduced cumulative CO2 and NH3 emissions. The synergistic interaction between the composites and Ferrous sulfate significantly enhanced NH4+-N levels in the thermophilic phase and NO3−-N levels in the cooling phase, ultimately decreasing nitrogen loss by 14.9% (P 
ISSN:0301-4797
1095-8630
1095-8630
DOI:10.1016/j.jenvman.2024.123749