Effect of biochar on emission, maturity and bacterial dynamics during sheep manure compositing

Mukesh Kumar Awasthi, Yumin Duan, Sanjeev Kumar Awasthi, Tao Liu, Zengqiang Zhang, Sang Hyoun Kim, Ashok Pandey

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


The effects of bamboo biochar (BB) variables on gaseous emissions, maturity and microbial dynamics during composting of sheep manure were investigated. The experiments were conducted with six different ratio of BB (0%, 2%, 4%, 6%, 8% and 10% dry weight based) and 0% is compiled as control. The results showed that 10%BB provided rapid mineralization and less time duration of compost maturity. 10% BB has the excellent impact on greenhouse gas (GHG) emission reduction and nutrients conservation (nitrogen and carbon losses were 13.40 g/kg and 124.42 g/kg) as compared to other treatments. Control was significantly different from other treatments in terms of GHG emission and nitrogen loss and had the lowest germination index after 42 days composting. BB addition were the main factors influencing GHG emission and improve the bacterial abundance. There is a significant correlation among the analyzed physicochemical factors, gaseous emission and bacterial phylum is used 8–10% BB for SM composting. Higher percentages of BB not only reduced CH4 and N2O emissions but also showed significant influence on CO2 and NH3 losses as well as improve the end product quality.

Original languageEnglish
Pages (from-to)421-429
Number of pages9
JournalRenewable Energy
Publication statusPublished - 2020 Jun

Bibliographical note

Funding Information:
The authors are grateful for the financial support from Research Fund for International Young Scientists from National Natural Science Foundation of China (Grant No. 31750110469 ), China; the Shaanxi Introduced Talent Research Funding ( A279021901 ), China and The Introduction of Talent Research Start-up fund (No. Z101021904 ), College of Natural Resources and Environment, Northwest A&F University , Yangling, Shaanxi Province 712100 , China. We are also thankful to all our laboratory colleagues and research staff members for their constructive advice and help.

Publisher Copyright:
© 2020 Elsevier Ltd

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment


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