Document Detail


Nitrous oxide emissions from aerated composting of organic waste.
MedLine Citation:
PMID:  11414043     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The composting of high organic content wastes has been shown to produce nitrous oxide (N2O). This study was initiated to investigate the mechanisms of N2O emissions from aerated composting and to determine the optimal operational conditions that minimize N2O emissions. The results of our experiment in laboratory-scale composters showed that more than 95% of N2O was produced during the later period of composting when readily available carbon sources had been depleted. Significant increases in N2O emission after nitrite (NO2-) addition, and good NO(2-)-N2O correlation, indicates that N2O was transformed from NO2-. Extremely high N2O generation was observed after NO2- addition in the presence and absence of composted cattle manure. This suggests an identical mechanism for N2O production in both treatments. However, the addition of composted cattle manure resulted in an earlier initiation of the main N2O generation period. Intermittent feeding of fresh food waste postponed the main N2O generation period, and reduced the mass-based N2O emissions by 20%.
Authors:
Y He; Y Inamori; M Mizuochi; H Kong; N Iwami; T Sun
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Environmental science & technology     Volume:  35     ISSN:  0013-936X     ISO Abbreviation:  Environ. Sci. Technol.     Publication Date:  2001 Jun 
Date Detail:
Created Date:  2001-06-20     Completed Date:  2001-11-01     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0213155     Medline TA:  Environ Sci Technol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2347-51     Citation Subset:  IM    
Affiliation:
National Institute for Environmental Studies, Onogawa 16-2, Tsukuba, Ibaraki 3050053, Japan.
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MeSH Terms
Descriptor/Qualifier:
Air Pollutants / analysis*,  chemistry
Animals
Cattle
Conservation of Natural Resources*
Manure*
Nitrous Oxide / analysis*,  chemistry
Organic Chemicals / metabolism
Refuse Disposal / methods*
Chemical
Reg. No./Substance:
0/Air Pollutants; 0/Manure; 0/Organic Chemicals; 10024-97-2/Nitrous Oxide

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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