Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/32883
Title: Nitrous oxide flux from landfill leachate-sawdust nitrogenous compost
Authors: Hui, CH
So, MK
Lee, CM
Chan, GYS 
Keywords: Compost
Denitrification
Nitrification
Nitrogen
Soil
Issue Date: 2003
Publisher: Pergamon Press
Source: Chemosphere, 2003, v. 52, no. 9, p. 1547-1551 How to cite?
Journal: Chemosphere 
Abstract: Composted nitrogenous waste has the potential to produce excessive amounts of nitrous oxide (N2O), a potent greenhouse gas that also contributes to stratospheric ozone depletion. In this laboratory study, sawdust was irrigated with varying amounts of landfill leachate with high NH 4+-N content (3950 mgl-1). Physicochemical properties, including the amount of N2O produced, were monitored during the composting process over 28 days. A rapid decline in NH 4+-N in the first 4 days and increasing NO 3--N for 11 days was followed by lower but stabilized levels of available-N, even with repeated leachate irrigation. Less than 0.03% of the leachate-applied N was lost as N2O. Higher leachate applications as much as tripled N2O production, but this represented a lesser proportion overall of the total nitrogen. Addition of glucose to the composting process had no significant effect on N2O production. The derived sawdustleachate compost supported healthy growth of Sesbania rostrata. It is concluded that compost can be produced from sawdust irrigated with landfill leachate without substantial emission of N2O, although excessive flux of N2O remains about high application rates over longer time periods.
URI: http://hdl.handle.net/10397/32883
ISSN: 0045-6535
EISSN: 1879-1298
DOI: 10.1016/S0045-6535(03)00494-6
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

16
Last Week
0
Last month
0
Citations as of Aug 20, 2017

WEB OF SCIENCETM
Citations

12
Last Week
0
Last month
0
Citations as of Aug 20, 2017

Page view(s)

41
Last Week
0
Last month
Checked on Aug 20, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.