Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6354822 | Waste Management | 2014 | 9 Pages |
Abstract
A combined process comprised of ex-situ nitrification in an aged refuse bioreactor (designated as A bioreactor) and in-situ denitrification in a fresh refuse bioreactor (designated as F bioreactor) was constructed for investigating N2O emission during the stabilization of municipal solid waste (MSW). The results showed that N2O concentration in the F bioreactor varied from undetectable to about 130Â ppm, while it was much higher in the A bioreactor with the concentration varying from undetectable to about 900Â ppm. The greatly differences of continuous monitoring of N2O emission after leachate cross recirculation in each period were primarily attributed to the stabilization degree of MSW. Moreover, the variation of N2O concentration was closely related to the leachate quality in both bioreactors and it was mainly affected by the COD and COD/TN ratio of leachate from the F bioreactor, as well as the DO, ORP, and NO3â-N of leachate from the A bioreactor.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geotechnical Engineering and Engineering Geology
Authors
Ya-nan Wang, Ying-jie Sun, Lei Wang, Xiao-jie Sun, Hao Wu, Rong-xing Bian, Jing-jing Li,