Nitrogen transformation during co-composting of spent pig manure, sawdust litter and sludge under forced-aerated system
dc.contributor.author | Tam, NFY | |
dc.contributor.author | Tiquia, SM | |
dc.date.accessioned | 2023-11-02T19:57:38Z | |
dc.date.available | 2023-11-02T19:57:38Z | |
dc.date.issued | 1999-03-01 | |
dc.identifier.issn | 0959-3330 | |
dc.identifier.issn | 1479-487X | |
dc.identifier.uri | https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000080534200003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=cc40378bfc9614a14500fbd6db90869f | |
dc.identifier.uri | https://hdl.handle.net/2027.42/191278 | en |
dc.description.abstract | Forced-aerated piles were built to investigate the transformation of nitrogen during co-composting of spent pig litter and sludge at 2:1 wet volume ratio. The total N concentration of spent litter-sludge increased during the early stage of composting due to the concentration effect as a consequence of strong degradation of carbon compounds in the spent litter-sludge piles. After day 21, the total N concentration decreased but there was no significant loss in nitrogen. The total mass of N was maintained at around 30 kg during the composting process. The ammonium- and nitrite-oxidizing bacteria increased in numbers during the active decomposition process (from day 0 to day 21), then dropped gradually as composting proceeded. At this early stage, the NH4+-N concentration declined and the (NO3−+NO2−)-N increased. However, the rapid decrease in NH4+-N concentration during the first 14 days of composting did not correspond to a rapid increase in (NO3−+NO2−)-N, indicating that some inorganic N was immobilized to organic N, some NH4+-N was volatilized, and some (NO3−+NO2−)-N was lost via denitrification. Denitrification only occurred during the early stage of composting and decreased significantly once the air was blown into the pile. Spatial variations in several physico-chemical and microbial parameters were found among four different locations of the forced-aerated piles, especially during the first 7 weeks of composting. The surface location had significantly lower temperature and population size of denitrifying bacteria than the top, middle and bottom locations, but higher concentration of total C and higher counts of ammonium-oxidizing bacteria were recorded in the surface location. © 1999 Taylor & Francis Group, LLC. | |
dc.language | en | |
dc.publisher | Taylor & Francis | |
dc.subject | animal waste | |
dc.subject | nitrogen bacteria | |
dc.subject | nitrification | |
dc.subject | denitrification | |
dc.subject | heterotrophs | |
dc.title | Nitrogen transformation during co-composting of spent pig manure, sawdust litter and sludge under forced-aerated system | |
dc.type | Article | |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/191278/2/JA1-1999-PDF.pdf | |
dc.identifier.doi | 10.1080/09593332008616816 | |
dc.identifier.doi | https://dx.doi.org/10.7302/21665 | |
dc.identifier.source | Environmental Technology (United Kingdom) | |
dc.description.version | Published version | |
dc.date.updated | 2023-11-02T19:57:35Z | |
dc.identifier.orcid | 0000-0001-5084-1658 | |
dc.identifier.volume | 20 | |
dc.identifier.issue | 3 | |
dc.identifier.startpage | 259 | |
dc.identifier.endpage | 267 | |
dc.identifier.name-orcid | Tam, NFY | |
dc.identifier.name-orcid | Tiquia, SM; 0000-0001-5084-1658 | |
dc.working.doi | 10.7302/21665 | en |
dc.owningcollname | Arts, Sciences, and Letters, College of (CASL, UM-Dearborn) |
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