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Effects of mixing and covering with mature compost on gaseous emissions during composting

Journal Article


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Abstract


  • This study investigated effects of mature compost on gaseous emissions during composting using pig

    manure amended with corn stalks. Apart from a control treatment, three treatments were conducted

    with the addition of 5% (wet weight of raw materials) of mature compost: (a) mixing raw materials with

    mature compost at the beginning of composting; (b) covering raw materials with mature compost

    throughout the experimental period; and (c) covering raw materials with mature compost at the start

    of composting, but incorporating it into composting pile on day 6 of composting. Mature compost used

    for the last treatment was inoculated with 2% (wet weight) of raw materials of strain M5 (a methanotrophic

    bacterium) solution. During 30-d of composting, three treatments with the addition of mature

    compost could reduce CH4 emission by 53–64% and N2O emission by 43–71%. However, covering with

    mature compost throughout the experimental period increased cumulative NH3 emission by 61%,

    although it could reduce 34% NH3 emission in the first 3 d. Inoculating strain M5 in mature compost covered

    on the top of composting pile within first 6 d enhanced CH4 oxidation, but simultaneously increased

    N2O emission. In addition, mixing with mature compost could improve compost maturity. Given the

    operational convenience in practice, covering with mature compost and then incorporating it into composting

    pile is a suitable approach to mitigate gaseous emissions during composting.

Authors


  •   Luo, Wenhai
  •   Yuan, Jing (external author)
  •   Luo, Yi Ming (external author)
  •   Li, Guo Xue (external author)
  •   Nghiem, Long D. (external author)
  •   Price, William E.

Publication Date


  • 2014

Citation


  • Luo, W. Hai., Yuan, J., Luo, Y. Ming., Li, G. Xue., Nghiem, L. D. & Price, W. E. (2014). Effects of mixing and covering with mature compost on gaseous emissions during composting. Chemosphere, 117 14-19.

Scopus Eid


  • 2-s2.0-84921367643

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3477&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2468

Has Global Citation Frequency


Number Of Pages


  • 5

Start Page


  • 14

End Page


  • 19

Volume


  • 117

Place Of Publication


  • United Kingdom

Abstract


  • This study investigated effects of mature compost on gaseous emissions during composting using pig

    manure amended with corn stalks. Apart from a control treatment, three treatments were conducted

    with the addition of 5% (wet weight of raw materials) of mature compost: (a) mixing raw materials with

    mature compost at the beginning of composting; (b) covering raw materials with mature compost

    throughout the experimental period; and (c) covering raw materials with mature compost at the start

    of composting, but incorporating it into composting pile on day 6 of composting. Mature compost used

    for the last treatment was inoculated with 2% (wet weight) of raw materials of strain M5 (a methanotrophic

    bacterium) solution. During 30-d of composting, three treatments with the addition of mature

    compost could reduce CH4 emission by 53–64% and N2O emission by 43–71%. However, covering with

    mature compost throughout the experimental period increased cumulative NH3 emission by 61%,

    although it could reduce 34% NH3 emission in the first 3 d. Inoculating strain M5 in mature compost covered

    on the top of composting pile within first 6 d enhanced CH4 oxidation, but simultaneously increased

    N2O emission. In addition, mixing with mature compost could improve compost maturity. Given the

    operational convenience in practice, covering with mature compost and then incorporating it into composting

    pile is a suitable approach to mitigate gaseous emissions during composting.

Authors


  •   Luo, Wenhai
  •   Yuan, Jing (external author)
  •   Luo, Yi Ming (external author)
  •   Li, Guo Xue (external author)
  •   Nghiem, Long D. (external author)
  •   Price, William E.

Publication Date


  • 2014

Citation


  • Luo, W. Hai., Yuan, J., Luo, Y. Ming., Li, G. Xue., Nghiem, L. D. & Price, W. E. (2014). Effects of mixing and covering with mature compost on gaseous emissions during composting. Chemosphere, 117 14-19.

Scopus Eid


  • 2-s2.0-84921367643

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3477&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2468

Has Global Citation Frequency


Number Of Pages


  • 5

Start Page


  • 14

End Page


  • 19

Volume


  • 117

Place Of Publication


  • United Kingdom