Earthworms change the quantity and composition of dissolved organic carbon and reduce greenhouse gas emissions during composting

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Earthworms change the quantity and composition of dissolved organic carbon and reduce greenhouse gas emissions during composting. / Nigatu, Abebe Nigussie; Bruun, Sander; de Neergaard, Andreas; Kuyper, Thomas W.

I: Waste Management, Bind 62, 2017, s. 43-51.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Nigatu, AN, Bruun, S, de Neergaard, A & Kuyper, TW 2017, 'Earthworms change the quantity and composition of dissolved organic carbon and reduce greenhouse gas emissions during composting', Waste Management, bind 62, s. 43-51. https://doi.org/10.1016/j.wasman.2017.02.009

APA

Nigatu, A. N., Bruun, S., de Neergaard, A., & Kuyper, T. W. (2017). Earthworms change the quantity and composition of dissolved organic carbon and reduce greenhouse gas emissions during composting. Waste Management, 62, 43-51. https://doi.org/10.1016/j.wasman.2017.02.009

Vancouver

Nigatu AN, Bruun S, de Neergaard A, Kuyper TW. Earthworms change the quantity and composition of dissolved organic carbon and reduce greenhouse gas emissions during composting. Waste Management. 2017;62:43-51. https://doi.org/10.1016/j.wasman.2017.02.009

Author

Nigatu, Abebe Nigussie ; Bruun, Sander ; de Neergaard, Andreas ; Kuyper, Thomas W. / Earthworms change the quantity and composition of dissolved organic carbon and reduce greenhouse gas emissions during composting. I: Waste Management. 2017 ; Bind 62. s. 43-51.

Bibtex

@article{c7bd8e60f9af4ee89f5193a5a53c647b,

title = "Earthworms change the quantity and composition of dissolved organic carbon and reduce greenhouse gas emissions during composting",

abstract = "Dissolved organic carbon (DOC) has recently been proposed as an indicator of compost stability. We assessed the earthworms' effect on DOC content and composition during composting, and linked compost stability to greenhouse gas emissions and feeding ratio. Earthworms reduced total DOC content, indicating larger stability of vermicompost than of thermophilic compost. The concentrations of humic acid and fulvic acid were reduced by earthworms, whereas there was no significant effect on hydrophobic neutrals and hydrophilics. The humic acid fraction was depleted more quickly than the other compounds, indicating humic acid degradation during composting. The optimum feeding ratio decreased DOC content compared to the high feeding ratio. The lowest N2O emissions were also observed at the optimum feeding ratio. Our study confirmed the use of DOC content and composition as an indicator of compost stability and suggested that feeding ratio should be considered when assessing the earthworms' effect on stabilisation and greenhouse gas emissions.",

keywords = "Journal Article",

author = "Nigatu, {Abebe Nigussie} and Sander Bruun and {de Neergaard}, Andreas and Kuyper, {Thomas W.}",

year = "2017",

doi = "10.1016/j.wasman.2017.02.009",

language = "English",

volume = "62",

pages = "43--51",

journal = "Waste Management",

issn = "0956-053X",

publisher = "Pergamon Press",

}

RIS

TY - JOUR

T1 - Earthworms change the quantity and composition of dissolved organic carbon and reduce greenhouse gas emissions during composting

AU - Nigatu, Abebe Nigussie

AU - Bruun, Sander

AU - de Neergaard, Andreas

AU - Kuyper, Thomas W.

PY - 2017

Y1 - 2017

N2 - Dissolved organic carbon (DOC) has recently been proposed as an indicator of compost stability. We assessed the earthworms' effect on DOC content and composition during composting, and linked compost stability to greenhouse gas emissions and feeding ratio. Earthworms reduced total DOC content, indicating larger stability of vermicompost than of thermophilic compost. The concentrations of humic acid and fulvic acid were reduced by earthworms, whereas there was no significant effect on hydrophobic neutrals and hydrophilics. The humic acid fraction was depleted more quickly than the other compounds, indicating humic acid degradation during composting. The optimum feeding ratio decreased DOC content compared to the high feeding ratio. The lowest N2O emissions were also observed at the optimum feeding ratio. Our study confirmed the use of DOC content and composition as an indicator of compost stability and suggested that feeding ratio should be considered when assessing the earthworms' effect on stabilisation and greenhouse gas emissions.

AB - Dissolved organic carbon (DOC) has recently been proposed as an indicator of compost stability. We assessed the earthworms' effect on DOC content and composition during composting, and linked compost stability to greenhouse gas emissions and feeding ratio. Earthworms reduced total DOC content, indicating larger stability of vermicompost than of thermophilic compost. The concentrations of humic acid and fulvic acid were reduced by earthworms, whereas there was no significant effect on hydrophobic neutrals and hydrophilics. The humic acid fraction was depleted more quickly than the other compounds, indicating humic acid degradation during composting. The optimum feeding ratio decreased DOC content compared to the high feeding ratio. The lowest N2O emissions were also observed at the optimum feeding ratio. Our study confirmed the use of DOC content and composition as an indicator of compost stability and suggested that feeding ratio should be considered when assessing the earthworms' effect on stabilisation and greenhouse gas emissions.

KW - Journal Article

U2 - 10.1016/j.wasman.2017.02.009

DO - 10.1016/j.wasman.2017.02.009

M3 - Journal article

C2 - 28228360

VL - 62

SP - 43

EP - 51

JO - Waste Management

JF - Waste Management

SN - 0956-053X

ER -

ID: 179921433