Nitrogen mineralisation and greenhouse gas emission from the soil application of sludge from reed bed mineralisation systems
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Nitrogen mineralisation and greenhouse gas emission from the soil application of sludge from reed bed mineralisation systems. / Muñoz, Beatriz Gomez; Larsen, J.D.; Bekiaris, Georgios; Scheutz, C; Bruun, Sander; Nielsen, S.; Jensen, Lars Stoumann.
In: Journal of Environmental Management, Vol. 203, No. Part 1, 2017, p. 59-67.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Nitrogen mineralisation and greenhouse gas emission from the soil application of sludge from reed bed mineralisation systems
AU - Muñoz, Beatriz Gomez
AU - Larsen, J.D.
AU - Bekiaris, Georgios
AU - Scheutz, C
AU - Bruun, Sander
AU - Nielsen, S.
AU - Jensen, Lars Stoumann
N1 - Copyright © 2017 Elsevier Ltd. All rights reserved.
PY - 2017
Y1 - 2017
N2 - A sludge treatment reed bed system (STRB) is a technology used for dewatering and stabilising sewage sludge via assisted biological mineralisation, which creates a sludge residue suitable for use as fertiliser on agricultural land. We evaluated the effect of sludge residue storage time (stabilisation time) for three STRBs on soil N mineralisation and CO2 and N2O emissions in soil. The experiment revealed that the N mineralisation rate and emissions of CO2 and N2O decreased as a function of treatment time in the STRBs. Mixed sludge residue (sludge residue subjected to different treatment times) for the three STRBs resulted in N mineralisation rates similar to the sludge residue subjected to a shorter treatment time but lower N2O emissions similar to the values of the older sludge residue. This finding reveals that combining fresh and more stabilised sludge residue ensures high N availability and reduces N2O emissions when applied to land.
AB - A sludge treatment reed bed system (STRB) is a technology used for dewatering and stabilising sewage sludge via assisted biological mineralisation, which creates a sludge residue suitable for use as fertiliser on agricultural land. We evaluated the effect of sludge residue storage time (stabilisation time) for three STRBs on soil N mineralisation and CO2 and N2O emissions in soil. The experiment revealed that the N mineralisation rate and emissions of CO2 and N2O decreased as a function of treatment time in the STRBs. Mixed sludge residue (sludge residue subjected to different treatment times) for the three STRBs resulted in N mineralisation rates similar to the sludge residue subjected to a shorter treatment time but lower N2O emissions similar to the values of the older sludge residue. This finding reveals that combining fresh and more stabilised sludge residue ensures high N availability and reduces N2O emissions when applied to land.
KW - Journal Article
U2 - 10.1016/j.jenvman.2017.07.042
DO - 10.1016/j.jenvman.2017.07.042
M3 - Journal article
C2 - 28778006
VL - 203
SP - 59
EP - 67
JO - Journal of Environmental Management
JF - Journal of Environmental Management
SN - 0301-4797
IS - Part 1
ER -
ID: 182933076