Abstract：
:Emission of nitrous oxide (N2O) during animal manure composting is of great concern, and its emission factor (EF) is important for greenhouse gas emission inventory, while the EF is still uncertain due to limited on-site full-scale observations worldwide. In this study, N2O emissions were monitored during different seasons in a full-scale swine manure windrow composting with pile volume of about 76.5 m3. The results showed that the maximum N2O flux during the cold season (CS) was 23 times higher than during the warm season (WS), significant differences in the contribution to direct N2O emissions were observed in three composting stages, and shaded-side N2O emission was higher than sunny-side emission. The direct N2O emission factors of animal manure composting were 0.0046, 0.0002 kg N2O-N/kgTN (dry weight) in the CS and WS, respectively. Scenario analysis results showed that windrow composting is a suitable manure management that emits less N2O than solid storage.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Zheng J,Liu J,Han S,Wang Y,Wei Ydoi
10.1016/j.biortech.2020.123905subject
Has Abstractpub_date
2020-11-01 00:00:00pages
123905eissn
0960-8524issn
1873-2976pii
S0960-8524(20)31177-9journal_volume
316pub_type
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